1s051 Volume II Pretest (For Reference Use Only)

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1. (221) All Air Force personnel must wear seatbelts at all times with the exception of

Explanation

The correct answer is Air Force Office of Special Investigations agents performing protective services. This exception is mentioned specifically for agents performing protective services, indicating that they are exempt from wearing seatbelts at all times.

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1s051 Volume II Pretest (For Reference Use Only) - Quiz

USAF Safety Journeyman Volume II Pretest (FOR REFERENCE USE ONLY)

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2. (213) Which type of hammer should be used for heading rivets?

Explanation

A ball peen hammer should be used for heading rivets because it has a rounded end and a flat end. The rounded end is used to shape the rivet and the flat end is used to strike the rivet, creating a secure and tight fit. The ball peen hammer is specifically designed for metalworking tasks like riveting, making it the most suitable choice for this purpose.

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3. (219) In a machine shop, how many inches wide should aisles be to permit free movement of workers and equipment?

Explanation

The correct answer is 36. In a machine shop, it is important to have wide aisles to allow for free movement of workers and equipment. A wider aisle ensures that there is enough space for workers to maneuver around machinery and for equipment to be safely transported. A narrower aisle may restrict movement and increase the risk of accidents or damage to equipment. Therefore, a width of 36 inches is recommended to provide ample space for safe and efficient movement in a machine shop.

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4. (221) What is the speed limit for forklifts inside of warehouses?

Explanation

The correct answer is 5 mph. Forklifts have a lower speed limit inside warehouses to ensure safety. Operating at a slower speed allows for better control and maneuverability, reducing the risk of accidents or collisions in the confined space of a warehouse. Additionally, a lower speed limit helps to minimize damage to goods and equipment that may be present in the warehouse.

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5. (225) Which is an example of ionizing radiation?

Explanation

Gamma rays are an example of ionizing radiation because they have high energy and can remove tightly bound electrons from atoms, creating ions. This process can cause damage to living cells and genetic material. Visible light, microwaves, and sound waves, on the other hand, are non-ionizing radiation and do not have enough energy to remove electrons from atoms.

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6. (211) During an inspection, if you believe that the facility does not have an adequate number of fire extinguishers, you should

Explanation

If during an inspection, you believe that the facility does not have an adequate number of fire extinguishers, the correct course of action is to refer the facility manager to fire prevention personnel. Fire prevention personnel are trained and knowledgeable in fire safety regulations and can assess the facility's fire extinguisher needs and provide guidance on the appropriate number and placement of extinguishers. They can also assist in ensuring that the facility is in compliance with fire safety regulations. Having additional extinguishers installed or submitting AF Form 979 to the installation manager may not be the appropriate actions without consulting fire prevention personnel. Having all flammable and explosive substances removed from the building is not directly related to the issue of inadequate fire extinguishers.

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7. (213) Which hammer is made for heavy hitting?

Explanation

A sledge hammer is specifically designed for heavy hitting. It has a large, heavy head that is used for tasks that require a lot of force, such as breaking through concrete or driving in stakes. The weight and size of the sledge hammer allow for maximum impact, making it the ideal choice for heavy-duty jobs. The other options, such as the claw hammer, mallet, and ball peen hammer, are not designed for heavy hitting and are better suited for different tasks.

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8. (214) What common behavior creates safety hazards when using screwdrivers?

Explanation

Using the wrong kind of screwdriver for the task can create safety hazards. Different types of screwdrivers are designed for specific purposes, such as Phillips, flathead, or Torx screwdrivers. Using the wrong type of screwdriver can result in the tool slipping or not fitting properly, leading to accidents such as injuries to the user or damage to the screw or surrounding materials. It is important to use the appropriate screwdriver to ensure proper and safe use.

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9. (219) The floor loading capacity of a machine shop is determined by the

Explanation

The installation civil engineer is responsible for determining the floor loading capacity of a machine shop. This is because the civil engineer specializes in the design, construction, and maintenance of structures, including the calculation of load-bearing capacities. They have the expertise to assess the structural integrity of the floor and ensure that it can support the weight of the machinery and equipment in the shop. The bioenvironmental engineer, shop supervisor, and safety personnel may have roles related to safety and environmental factors, but they are not specifically trained in determining floor loading capacities.

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10. (201) The amount of light to be provided in a given location is based on

Explanation

The amount of light to be provided in a given location is determined by the purpose for which the location is used. Different activities require different levels of lighting. For example, a workspace may require bright and focused lighting to ensure productivity, while a relaxation area may require softer and dimmer lighting to create a calming atmosphere. Therefore, the purpose of the location plays a crucial role in determining the appropriate amount of light needed.

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11. (203) What solution is a last resort for controlling exposure to hazards?

Explanation

Personal protective equipment (PPE) is the last resort for controlling exposure to hazards because it provides a physical barrier between the worker and the hazard. PPE includes items such as gloves, safety glasses, helmets, and respirators, which help to minimize the risk of injury or illness. While other control measures like substitution, revision, or isolation may be more effective in eliminating or reducing hazards, PPE is used when these measures are not feasible or do not provide sufficient protection. PPE acts as a final line of defense to ensure the safety and well-being of workers in hazardous environments.

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12. (205) Who must sign the entry permit prior to workers entering a confined space?

Explanation

The supervisor and entrants must sign the entry permit prior to workers entering a confined space. This is important to ensure that all parties involved are aware of the risks and safety measures associated with entering the confined space. The supervisor's signature indicates that they have assessed the conditions and deemed it safe for workers to enter, while the entrants' signature signifies their understanding and agreement to follow the necessary protocols for their own safety.

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13. (208) Which equipment protects the upper part of the foot from hot metal splashes?

Explanation

Spats are protective equipment that cover the upper part of the foot, providing protection from hot metal splashes. They are typically made of heat-resistant materials and are designed to shield the foot from potential burns or injuries caused by molten metal. Toe guards, safety toe shoes, and conductive shoes may offer protection to some extent, but they do not specifically protect the upper part of the foot from hot metal splashes like spats do.

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14. (220) Which traffic safety course may be commander directed for personnel who are convicted of serious traffic violations?

Explanation

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15. (221) Who determines (or designates someone to determine) when and where off road vehicles may operate on base?

Explanation

The installation commander is responsible for determining when and where off-road vehicles may operate on base. They have the authority to designate someone to make these determinations on their behalf. The chief of safety, traffic safety engineer, and ground safety manager may have roles in ensuring the safe operation of off-road vehicles, but the ultimate decision-making authority lies with the installation commander.

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16. (223) A traffic engineering study would be useful when

Explanation

A traffic engineering study would be useful when a hazard report identifies an intersection with a high number of accidents because it would allow traffic engineers to analyze the intersection and determine the causes of the accidents. They can then propose and implement appropriate measures to improve the safety of the intersection, such as installing traffic signals, adjusting speed limits, or adding signage. The study would help in identifying the specific issues contributing to the accidents and finding effective solutions to prevent future accidents at that location.

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17. (208) Which type glove must be used as outer protection when rubber insulating gloves are being used?

Explanation

When rubber insulating gloves are being used, leather gloves must be worn as outer protection. Leather gloves provide additional protection against physical hazards such as cuts, abrasions, and punctures. They also offer good grip and dexterity, making them suitable for handling tools and equipment. Cotton and wool gloves do not provide the same level of protection as leather gloves, while synthetic gloves may not have the same durability and resistance to wear and tear. Therefore, leather gloves are the most appropriate choice for outer protection in this scenario.

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18. (208) Which class safety-toe shoe is the only one approved for use by Air Force personnel?

Explanation

Class 75 is the only safety-toe shoe approved for use by Air Force personnel. This suggests that the Air Force has specific safety requirements that must be met, and Class 75 shoes meet these requirements. The other classes (25, 35, and 50) are not approved for use, indicating that they do not meet the necessary standards for Air Force personnel.

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19. (214) Which type of pliers is used for general electric work where space is limited?

Explanation

Long-nose pliers are used for general electric work where space is limited because of their slim and elongated jaws. These pliers have a pointed tip that allows for better access and maneuverability in tight spaces. They are commonly used for tasks such as bending wires, gripping small objects, and reaching into confined areas. The other types of pliers mentioned, such as adjustable combination, diagonal-cutting, and side-cutting, may have their own specific uses but are not specifically designed for work in limited spaces.

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20. (214) What factor controls the "binding" of hacksaw blades?

Explanation

The factor that controls the "binding" of hacksaw blades is the set of the teeth. The set refers to the alternate bending of the teeth in opposite directions, creating a slight angle between them. This allows the blade to cut a wider kerf and prevents the blade from getting stuck or binding in the material being cut.

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21. (215) When using a portable sander, what should be done to protect the motor from overheating?

Explanation

Applying only light pressure when using a portable sander helps to protect the motor from overheating. Excessive pressure can cause the motor to work harder, generating more heat and potentially leading to overheating. By applying only light pressure, the motor can operate at a more optimal level, reducing the risk of overheating and prolonging the lifespan of the sander.

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22. (218) If a machine guard opens when stock is moved into the danger area and returns to a rest position when the stock is removed, that guard is

Explanation

A self-adjusting machine guard is one that opens automatically when stock is moved into the danger area and returns to its original position when the stock is removed. This type of guard does not require any manual adjustment or intervention from the operator. It is designed to adapt to the movement of the stock, providing continuous protection without the need for constant adjustment.

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23. (222) What is a good way to gauge the impact of your restraint awareness program?

Explanation

Performing a restraint usage survey before and after the program is a good way to gauge the impact of the restraint awareness program. This method allows for objective measurement of the program's effectiveness by comparing the usage of restraints by individuals before and after the program. It provides quantitative data that can indicate whether the program has successfully increased awareness and compliance with restraint usage. This approach is more reliable and accurate than relying on subjective opinions or anecdotal evidence from interviews or surveys conducted by squadron safety representatives or base personnel. Additionally, asking security forces about the number of tickets written for failure to wear seat belts may not provide a comprehensive picture of the program's impact as it only focuses on one aspect of restraint usage.

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24. (210) If during an annual inspection of the child development center you identify and document several fire deficiencies, what should be your next course of action?

Explanation

If during an annual inspection of the child development center you identify and document several fire deficiencies, the next course of action should be to report them to the fire prevention personnel at the fire department for action. This is because the fire department is responsible for ensuring fire safety and can take appropriate measures to address the deficiencies and mitigate any potential risks. Reporting to the child development center management may also be necessary, but involving the fire department is crucial to ensure prompt and effective action. Taking immediate action to correct the fire deficiencies may not be feasible without the expertise and resources of the fire department. Assigning risk assessment codes is not mentioned as a necessary step in the given scenario.

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25. (214) Which precaution must you take to avoid possible injury, as well as damage to the saw, when you are cutting stock?

Explanation

To avoid possible injury and damage to the saw when cutting stock, it is important to adequately secure the stock. This ensures that the stock does not move or shift during the cutting process, reducing the risk of accidents or mistakes. By securely holding the stock in place, it allows for more precise and controlled cuts, preventing potential injuries and damage to the saw. Using personal protective equipment and guards is also important for safety, but the most immediate precaution to take in this scenario is to secure the stock properly.

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26. (215) On an electric drill, the chuck

Explanation

The chuck of an electric drill must be securely anchored against the shank of the drill bit to ensure stability and prevent the bit from slipping or becoming loose during operation. This allows for accurate drilling and reduces the risk of accidents or damage to the workpiece.

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27. (215) A twist drill bit with four flutes should only be used to

Explanation

A twist drill bit with four flutes is designed to remove material quickly and efficiently. It is not suitable for starting holes in sheet metal or plaster as it may cause the material to crack or break. Instead, it is specifically designed to enlarge cored holes, which are pre-existing holes that need to be made larger. This type of drill bit is able to remove material from the sides of the hole and create a larger opening without causing damage to the surrounding material.

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28. (216) Maintenance on soldering irons and guns is primarily centered on the

Explanation

Maintenance on soldering irons and guns primarily focuses on the tips because the tip is the part of the soldering iron that comes into direct contact with the solder and the components being soldered. Over time, the tip can become dirty, corroded, or worn out, which can affect the quality of the solder joints. Regular maintenance of the tips includes cleaning, tinning, and replacing them when necessary to ensure proper heat transfer and efficient soldering. The handle, shank, and power cord are also important components, but they generally require less maintenance compared to the tips.

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29. (217) To prevent mishaps involving machinery, the best action, which should be pursued first, is to

Explanation

The best action to prevent mishaps involving machinery is to engineer hazards out. This means identifying and eliminating or reducing potential hazards in the design and construction of machinery. By addressing the root cause of the hazards, it is possible to create a safer working environment and minimize the risk of accidents or injuries. Educating workers, using machine guards, and providing personal protective equipment are important measures as well, but they should be implemented after engineering hazards out to ensure comprehensive safety.

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30. (224) Who is responsible for the initial classification of new lasers?

Explanation

The manufacturer is responsible for the initial classification of new lasers because they are the ones who design, produce, and distribute the lasers. They have the expertise and knowledge to determine the appropriate classification based on factors such as power output, wavelength, and potential hazards. The manufacturer must ensure that the laser meets the necessary safety standards and guidelines before it is sold or used by the customers.

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31. (203) Installing a guard or barrier between the worker and the hazardous operation illustrates the hazard control method of

Explanation

Installing a guard or barrier between the worker and the hazardous operation is a method of isolating the worker from the hazard. This physical barrier acts as a form of protection by preventing direct contact between the worker and the hazardous operation, reducing the risk of accidents or injuries. Isolation is an effective hazard control method as it eliminates or minimizes the worker's exposure to the hazard, ensuring their safety.

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32. (205) All members of confined-space rescue teams must have hands-on training in removing victims at least every

Explanation

Confined-space rescue teams need to have hands-on training in removing victims regularly to ensure they are prepared and proficient in their skills. The correct answer is 12 months, which means that the members of these teams should receive this training at least once every year. This frequency allows them to stay updated with the latest techniques and protocols, ensuring their ability to safely and effectively rescue victims from confined spaces.

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33. (206) A toxic gas and vapor concentration of three percent is considered

Explanation

A toxic gas and vapor concentration of three percent is considered very high because it poses a significant risk to human health. At this concentration, exposure to the gas or vapor can cause severe health effects and even be life-threatening. It is crucial to take immediate action to minimize exposure and evacuate the area to ensure the safety of individuals.

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34. (209) What is the minimum distance a strip of insulating matting must extend past each end of a work area?

Explanation

Insulating matting is used to provide electrical insulation and protect workers from electric shocks. The minimum distance that a strip of insulating matting must extend past each end of a work area is two feet. This ensures that there is enough coverage to prevent accidental contact with live electrical parts. Extending the matting beyond the work area provides an additional safety buffer and reduces the risk of electrical accidents.

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35. (210) What elements must be present in order for a fire to start?

Explanation

In order for a fire to start, four elements must be present: fuel, heat, oxygen, and a chemical reaction. Fuel provides the material to burn, heat provides the energy to initiate the reaction, oxygen acts as the oxidizing agent, and the chemical reaction is the process of combustion that releases heat and light. Without any of these elements, a fire cannot occur.

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36. (212) Which color code is used for piping system containers that contain radioactive substances?  

Explanation

Magenta is the color code used for piping system containers that contain radioactive substances. This color is chosen because it is easily distinguishable and helps to alert individuals to the potential danger associated with radioactive materials. It serves as a visual indicator to ensure proper handling and safety protocols are followed when dealing with these substances.

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37. (226) Lateral epicondylitis, or tennis elbow, is caused by

Explanation

Lateral epicondylitis, or tennis elbow, is caused by activities that have jerky throwing motions. This condition is characterized by inflammation and pain on the outside of the elbow. The repetitive and forceful motions involved in jerky throwing can strain the tendons in the elbow, leading to the development of tennis elbow. Activities such as throwing a ball or participating in certain sports like tennis or baseball can put individuals at risk for this condition.

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38. (227) For a shop where workers are exposed to bloodborne pathogens, when must the exposure control plan be reviewed and updated?

Explanation

The exposure control plan for a shop where workers are exposed to bloodborne pathogens must be reviewed and updated annually. Additionally, it should also be updated whenever modified tasks affect exposure. This is important to ensure that the plan remains effective and up to date with any changes in the work environment or tasks that may impact the exposure to bloodborne pathogens.

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39. (202) Noise exposure limits are established by the

Explanation

The USAF surgeon general is responsible for establishing noise exposure limits. This individual oversees the medical services of the entire Air Force and has the authority to set guidelines and regulations to ensure the health and safety of personnel. As noise exposure can have detrimental effects on hearing and overall well-being, it is within the purview of the surgeon general to establish these limits. The bioenvironmental engineering office, director of base medical services, and installation commander may have involvement in implementing and enforcing these limits, but the ultimate authority lies with the USAF surgeon general.

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40. (202) In the hearing conservation program, the safety professional

Explanation

In the hearing conservation program, the safety professional conducts follow-up inspections to ensure program compliance. This means that after implementing the necessary measures to protect against noise hazards and testing individuals for hearing loss, the safety professional is responsible for conducting regular inspections to ensure that the program is being followed and that all necessary precautions are being taken to prevent hearing loss. This helps to ensure the effectiveness of the program and maintain a safe working environment.

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41. (204) What agency reviews the initial design for any ventilation system to be used in Air Force environments?

Explanation

Bioenvironmental engineering is the correct answer because this agency is responsible for reviewing the initial design of ventilation systems in Air Force environments. They ensure that the systems meet the necessary safety and health standards to protect the personnel and maintain a suitable environment.

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42. (205) Which of the following conditions creates a hazardous atmosphere?

Explanation

The presence of a flammable gas in excess of 10 percent of its lower explosive limit creates a hazardous atmosphere. Flammable gases can ignite and cause explosions if they reach a certain concentration in the air. The lower explosive limit is the minimum concentration of a gas or vapor that is required to ignite in the presence of an ignition source. If the concentration of a flammable gas exceeds 10 percent of its lower explosive limit, it poses a significant risk of causing an explosion, making the atmosphere hazardous.

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43. (207) Which type of goggles is designed to protect the eyes from relatively large particles flying from any direction?

Explanation

Chippers goggles are designed to protect the eyes from relatively large particles flying from any direction. This type of goggles typically has a wraparound design with side shields to provide maximum coverage and protection. The goggles are made with impact-resistant materials and have a snug fit to prevent any particles from entering the eyes. They are commonly used in industries such as construction, woodworking, and metalworking where there is a high risk of flying debris.

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44. (208) Who is responsible for testing rubber insulating gloves and ensuring relevant records are maintained?

Explanation

The supervisor is responsible for testing rubber insulating gloves and ensuring relevant records are maintained. This is because the supervisor oversees the safety protocols and equipment used by the workers. They have the authority and knowledge to conduct tests on the gloves and keep records to ensure the safety of the workers. The other options, such as the safety professional, civil engineering electric shop, and individual user, may have roles in the process, but the ultimate responsibility lies with the supervisor.

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45. (212) In color coding, black lettering should not be used on which background(s)?

Explanation

The question asks about color coding and states that black lettering should not be used on which background(s). The answer is red and green. This means that black lettering can be used on all backgrounds except red and green.

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46. (218) Which type of machine guard is preferable to all others?

Explanation

Fixed machine guards are preferable to all others because they provide a permanent physical barrier that cannot be easily bypassed or tampered with. Unlike adjustable or self-adjusting guards, fixed guards cannot be altered or moved, ensuring consistent protection for operators and preventing unauthorized access to hazardous areas. Interlock guards may be effective in certain situations, but they rely on the proper functioning of interlocking mechanisms, which can be prone to failure. Overall, fixed guards offer the highest level of safety and reliability in machine guarding.

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47. (202) When a procedure or piece of equipment exceeds the limits of safe noise exposure, what is the best course of action?

Explanation

The best course of action when a procedure or piece of equipment exceeds the limits of safe noise exposure is to isolate the procedure or equipment from personnel. This means physically separating the procedure or equipment from the workers to minimize their exposure to the excessive noise. By doing so, the risk of hearing damage or other health issues related to noise exposure can be reduced. This solution is more effective than simply requiring personnel to wear earmuffs or earplugs, warning personnel about the noise hazard, or conducting a sound-level survey.

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48. (206) Which type of self-contained breathing apparatus is simple to use and requires less regular maintenance than the other SCBAs?

Explanation

A self-generating self-contained breathing apparatus is simple to use and requires less regular maintenance compared to other SCBAs. This type of SCBA generates its own oxygen supply, eliminating the need for external sources. It typically uses a chemical reaction to produce oxygen, making it convenient and reliable. This eliminates the need for regular refilling or replacement of oxygen cylinders, reducing maintenance requirements.

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49. (214) When using files, what action frequently leads to puncture wounds?

Explanation

Failure to use a handle when using files can frequently lead to puncture wounds. When files are used without a handle, there is a higher risk of losing grip or control over the file, which can result in the file slipping and causing puncture wounds. Using a handle provides a secure grip and helps maintain control over the file, reducing the chances of accidents and injuries.

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50. (218) Which safety device resembles an interlocked machine guard?

Explanation

A gate is a safety device that resembles an interlocked machine guard. It is designed to restrict access to hazardous areas by forming a physical barrier that opens and closes automatically. Similar to an interlocked machine guard, a gate ensures that the machine or equipment cannot be operated while the gate is open, preventing accidents and injuries. It provides an added layer of protection by only allowing access to authorized personnel and ensuring that the machine is in a safe state before it can be operated.

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51. (220) Which traffic safety course must be reviewed annually by the installation ground safety manager?

Explanation

The correct answer is II. The installation ground safety manager must review the traffic safety course annually. This suggests that the course is important for maintaining traffic safety on the installation grounds and that regular review is necessary to ensure that the information is up to date and relevant. It also implies that the installation ground safety manager has the responsibility to oversee and enforce traffic safety measures.

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52. (202) If you were working in a machine shop, your workplace would be designated as a hazardous noise environment when the noise in the shop equals or exceeds

Explanation

In a machine shop, the noise level can be high and continuous, which can have detrimental effects on workers' hearing. To ensure the safety of the workers, a workplace is designated as a hazardous noise environment when the noise level exceeds a certain threshold. In this case, the correct answer is 85 decibels averaged over an eight-hour period. This means that if the average noise level in the shop over an eight-hour period exceeds 85 decibels, it is considered a hazardous noise environment. This takes into account the cumulative effect of prolonged exposure to high noise levels.

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53. (204) Any type of fan device that aids the flow of air in an area is known as

Explanation

The correct answer is "mechanical ventilation" because it refers to any type of fan device that helps in the movement or flow of air in a specific area. This can include exhaust fans, ceiling fans, or HVAC systems that use mechanical means to circulate and ventilate the air. The other options mentioned, such as local exhaust, lateral exhaust, and local ventilation, do not encompass the broader concept of mechanical ventilation.

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54. (205) Name the three primary means of rescue from confined spaces.

Explanation

The correct answer is self-rescue, centrally located rescue team, and organizational rescue team. This means that the three primary means of rescue from confined spaces are: individuals rescuing themselves, a rescue team located nearby, and a rescue team organized by the organization.

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55. (206) Self-contained breathing apparatus respirators

Explanation

Self-contained breathing apparatus respirators are designed to provide complete protection against airborne toxicity and oxygen deficiency. They use a blower to pass air across an air-cleaning element, ensuring that the air being breathed in is free from harmful substances. These respirators are not limited to protecting against particulate matter but offer comprehensive protection against any airborne toxins that may be present. Additionally, they also address the risk of oxygen deficiency, ensuring that the user has an adequate supply of oxygen while using the apparatus.

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56. (213) Which type of chisel should be used to cut sheet metal?

Explanation

A flat chisel should be used to cut sheet metal because it has a wide, flat cutting edge that allows for precise and clean cuts. This type of chisel is specifically designed for cutting through thin materials like sheet metal, making it the most suitable option for this task.

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57. (219) To ensure proper layout, equipment and machinery must be arranged

Explanation

The correct answer is "to permit an even flow of materials." This means that the arrangement of equipment and machinery should be done in such a way that there is a smooth and consistent movement of materials throughout the layout. This ensures that there are no bottlenecks or interruptions in the flow, which can lead to inefficiencies and delays in the production process. By allowing an even flow of materials, productivity can be maximized and operations can run smoothly.

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58. (225) A radio frequency radiation (RFR) safety program should

Explanation

A radio frequency radiation (RFR) safety program should evaluate the exposure potential of a system that emits RFR against the permissible exposure limit. This means that the program should assess the level of RFR emissions from the system and compare it to the maximum allowable exposure limit set by regulatory bodies. This evaluation ensures that the system is not emitting RFR at levels that could potentially harm individuals or exceed the safety guidelines. It focuses on determining if the system is within the acceptable limits rather than trying to eliminate all RFR emissions or completely avoiding exposure to RFR.

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59. (225) Refresher training for the radio frequency radiation awareness program will include all of the following except

Explanation

The refresher training for the radio frequency radiation awareness program will cover control measures, incident reporting procedures, and modifications that affect the locations of hazardous areas. However, it will not include information about locations where the permissible exposure limit can be exceeded.

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60. (205) Oxygen deficiency is first reached when oxygen content is below

Explanation

Oxygen deficiency occurs when the oxygen content in the air is below a certain level. In this case, the correct answer is 19.5 percent, indicating that oxygen deficiency is first reached when the oxygen content falls below this threshold.

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61. (206) Which type of respirator offers protection against light concentrations only of gases and vapors?

Explanation

A chemical cartridge respirator offers protection against light concentrations only of gases and vapors. Gas masks are designed to protect against a wider range of hazardous substances, including particles and biological agents. Mechanical filters are used to trap particles, but do not provide protection against gases and vapors. Combination mechanical filter/chemical cartridge respirators offer protection against both particles and gases/vapors. Therefore, the correct answer is chemical cartridge.

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62. (206) When wearing a hose mask respirator without a blower unit (Type B), what is the maximum distance beyond uncontaminated air that a worker may go?

Explanation

When wearing a hose mask respirator without a blower unit (Type B), the maximum distance beyond uncontaminated air that a worker may go is 75 feet.

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63. (226) Which factor contributes to work-related musculoskeletal disorders by creating pressure over a small area and interfering with blood flow and nerve function?

Explanation

Mechanical compression contributes to work-related musculoskeletal disorders by creating pressure over a small area and interfering with blood flow and nerve function. This can occur when there is prolonged or repeated pressure on a specific body part, such as from using tools or equipment that apply pressure to a specific area. This can lead to discomfort, pain, and potentially long-term damage to the muscles, tendons, and nerves in that area.

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64. (204) What are the two main purposes of a spray booth?

Explanation

A spray booth has two main purposes: to protect the health of the worker and to reduce the fire and explosion hazard. By containing and ventilating the area where spraying is done, the booth helps prevent the inhalation of harmful fumes and particles by the worker. Additionally, the booth is designed to minimize the risk of fire or explosion by providing proper ventilation and containing any flammable materials or vapors.

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65. (209) The maximum time and distance between hazardous operations or materials and an emergency shower and eyewash unit are

Explanation

The maximum time and distance between hazardous operations or materials and an emergency shower and eyewash unit are 10 seconds and 100 feet. This means that in the event of an emergency, the shower and eyewash unit should be within 100 feet of the hazardous area, and it should take no longer than 10 seconds for a person to reach the unit for treatment. This ensures that prompt and immediate access to the shower and eyewash unit is available to minimize the potential harm caused by hazardous materials or operations.

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66. (212) Which color code is used for designating electrical conduit and unguarded, dangerous parts of machines or energized equipment?

Explanation

Orange is the color code used for designating electrical conduit and unguarded, dangerous parts of machines or energized equipment. This color is chosen to alert individuals to the potential hazards associated with these areas or equipment. It serves as a visual indicator to exercise caution and follow safety protocols when working near or with these components.

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67. (213) Which wrench has the disadvantage of tending to round off the corners of hex nuts?

Explanation

The adjustable wrench has the disadvantage of tending to round off the corners of hex nuts. This is because the adjustable wrench has jaws that can be adjusted to fit various sizes of nuts, but the jaws may not fit perfectly and can slip or apply uneven pressure on the nut. This can result in the corners of the hex nut getting rounded off, making it more difficult to remove or tighten the nut properly.

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68. (214) Which screwdriver is especially useful in getting to screws under or behind pieces of equipment?

Explanation

An off-set ratchet screwdriver is especially useful in getting to screws under or behind pieces of equipment because of its design. The off-set handle allows for better access to tight spaces, while the ratchet mechanism allows for easier and faster screwing or unscrewing of screws. This combination of features makes the off-set ratchet screwdriver the most suitable tool for reaching screws that are difficult to access.

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69. (223) Who regulates the movement of traffic and personnel on an Air Force installation?

Explanation

The installation commander is responsible for regulating the movement of traffic and personnel on an Air Force installation. As the highest-ranking officer in charge, the installation commander has the authority to establish and enforce traffic and personnel regulations to ensure the safety and security of the installation. This includes implementing measures such as traffic control, access control, and coordinating with other relevant personnel or departments to maintain order and efficiency on the installation.

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70. (224) Which laser class is of medium power and requires control measures to prevent viewing of the direct beam?

Explanation

Laser class 3 is of medium power and requires control measures to prevent viewing of the direct beam. This means that it poses a moderate risk to the eyes and skin, and precautions must be taken to ensure that individuals are not exposed to the direct beam. Control measures could include the use of protective eyewear or barriers to block the beam.

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71. (205) An atmosphere is considered oxygen-enriched when oxygen content rises above

Explanation

An atmosphere is considered oxygen-enriched when the oxygen content rises above 23.5 percent. This means that the oxygen concentration in the air is higher than the normal level of 21 percent found in the Earth's atmosphere. Oxygen-enriched atmospheres can have various applications, such as in medical settings where higher oxygen levels are needed for patients with respiratory issues or in industrial processes where oxygen is used for combustion.

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72. (207) Which type of goggles should be used when ordinary goggles dust or steam over, affecting the wearer's vision?

Explanation

When ordinary goggles become dusty or steamy, it can impair the wearer's vision. In such situations, wire screen goggles are recommended. Wire screen goggles have a mesh-like structure that allows air to flow through, preventing the accumulation of dust and steam. This design ensures that the wearer's vision remains clear and unobstructed, making wire screen goggles the suitable choice for this scenario.

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73. (210) What minimum distance must be maintained between a heat producing appliance and combustibles?

Explanation

A minimum distance of 18 inches must be maintained between a heat producing appliance and combustibles. This is necessary to prevent the risk of fire or combustion of the nearby materials. Keeping a safe distance ensures that there is enough space for air circulation and reduces the chances of ignition or heat transfer to the combustible materials.

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74. (215) For small-capacity electrical tools, double insulation can be provided by

Explanation

Double insulation in small-capacity electrical tools can be achieved by encasing the entire tool in a nonconductive material. This means that the tool itself is surrounded by an additional layer of insulation, providing an extra level of protection against electric shock. This method eliminates the need for an additional ground wire or reliance on the power cord for insulation. By enclosing the tool in a nonconductive material, the risk of electrical hazards is minimized, making it safer for the user to handle the tool.

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75. (216) On a power-actuated hand tool, the steel muzzle guard must be at least how many inches in diameter to protect personnel from flying particles?

Explanation

The steel muzzle guard on a power-actuated hand tool must be at least 3 ½ inches in diameter to protect personnel from flying particles. This size ensures that the guard is large enough to effectively block any particles that may be ejected from the tool during operation, reducing the risk of injury to the user or others nearby.

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76. (218) Which safety device uses operator wristbands to ensure a worker's hands are automatically withdrawn from the point of operation?

Explanation

Pull-out is the correct answer because it refers to a safety device that uses operator wristbands to automatically withdraw a worker's hands from the point of operation. This device is designed to prevent accidents or injuries by quickly removing the worker's hands from potentially dangerous areas.

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77. (223) If your base has no traffic engineer, the installation commander may request assistance from

Explanation

If a base does not have a traffic engineer, the installation commander can request assistance from the commander of the Military Traffic Management Command. This is because the Military Traffic Management Command is responsible for the management and movement of military personnel and equipment, including traffic control and planning. They have the expertise and resources to provide assistance in managing traffic on the base. The Department of Transportation and the National Highway Traffic Safety Administration may also be involved in traffic management, but the commander of the Military Traffic Management Command would be the most appropriate choice in this scenario.

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78. (207) Safety helmets can be broken down into how many types and classes?

Explanation

Safety helmets can be categorized into two types based on their design and functionality. These types are usually referred to as Type I and Type II helmets. Additionally, safety helmets can be further classified into three classes based on their level of electrical insulation. These classes are Class G (general), Class E (electrical), and Class C (conductive). Therefore, safety helmets can be broken down into two types and three classes.

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79. (208) Rubber insulating gloves in storage must be dielectric tested every

Explanation

Rubber insulating gloves in storage must be dielectric tested every 12 months. This is because rubber gloves are used to provide electrical insulation and protect against electric shock. Over time, the rubber material can degrade and lose its insulating properties, making it necessary to regularly test the gloves to ensure they are still effective. Testing every 12 months strikes a balance between ensuring safety and minimizing the cost and effort required for testing.

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80. (215) What is the easiest way to protect the operator of an electrically powered hand tool?

Explanation

Grounding is the easiest way to protect the operator of an electrically powered hand tool. Grounding involves connecting the tool to a ground or earth, which provides a path for electrical current to flow safely in the event of a fault or malfunction. This helps to prevent electric shocks and ensures that any excess electrical energy is safely dissipated. Bonding, double insulating, and insulating matting are also safety measures, but grounding is specifically mentioned as the easiest way to protect the operator.

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81. (217) Which is not a purpose of machine guards?

Explanation

Machine guards serve multiple purposes, including protecting people from material that may be thrown and keeping people from touching the machine's moving parts. However, their purpose is not to keep material from being thrown into the machine. Instead, guards are designed to prevent accidents and injuries by containing any potential hazards within the machine and preventing them from reaching the surrounding environment.

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82. (221) An all-terrain vehicle is a three- or four-wheeled vehicle that has low pressure tires and a wheel base of

Explanation

An all-terrain vehicle is a vehicle designed to be used on a variety of terrains, including off-road environments. These vehicles typically have low pressure tires and a compact size to navigate through rough terrain. The given answer, 50 inches or less, suggests that the wheel base of an all-terrain vehicle should be no more than 50 inches. This limitation in wheel base size ensures that the vehicle remains agile and maneuverable, allowing it to easily navigate through narrow paths and obstacles encountered in off-road conditions.

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83. (202) Who establishes the monitoring program in the hearing conservation area to ensure compliance with federal laws?

Explanation

The USAF surgeon general is responsible for establishing the monitoring program in the hearing conservation area to ensure compliance with federal laws. This role is important as it ensures that all necessary measures are taken to protect the hearing health of individuals and to adhere to the regulations set by the federal government. The surgeon general's expertise in medical services makes them the most suitable authority to oversee and implement such a program.

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84. (217) What hazard is commonly associated with a transverse motion?

Explanation

The hazard commonly associated with a transverse motion is that the worker may be struck or caught in a pinch by the moving part. This means that as the part moves across, there is a risk of the worker getting hit or trapped by it, which can result in injuries. It is important for workers to be aware of this hazard and take necessary precautions to avoid accidents.

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85. (225) Which agency is responsible for providing initial and annual refresher radio frequency radiation training?

Explanation

The correct answer is Bioenvironmental engineering. This agency is responsible for providing initial and annual refresher radio frequency radiation training.

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86. (225) Which agency assists unit commanders and shop supervisors with the development of radio frequency radiation training awareness programs?

Explanation

Bioenvironmental engineering is the correct answer because this agency is responsible for assisting unit commanders and shop supervisors in developing radio frequency radiation training awareness programs. They have the expertise and knowledge in assessing and controlling environmental factors that may affect the health and safety of personnel, including radio frequency radiation. They work closely with other agencies, such as wing safety and public health, to ensure the implementation of effective training programs. The Air Force Safety Center may also provide support and guidance, but bioenvironmental engineering specifically focuses on the development of these training programs.

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87. (201) Which of the following is not a primary objective of the vision conservation program?

Explanation

The vision conservation program aims to provide high quality care, conduct research that supports wartime readiness, and sustain combat capability to support the mission. However, satisfying Air Force Occupational Safety and Health concerns is not listed as one of the primary objectives of the program.

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88. (217) In-running nip points are a specific danger of which type of motion?

Explanation

In-running nip points refer to the areas where rotating parts come into contact with each other, creating a pinch or trapping hazard. This can occur in machinery with rotating motion, such as gears, pulleys, or rotating shafts. The correct answer, rotating, identifies the type of motion that poses the specific danger of in-running nip points.

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89. (207) Which type and class of safety helmet will offer protection against lateral blows to the head and reduce the danger of exposure to low voltage electrical conductors?

Explanation

Type II, class G safety helmets are designed to offer protection against lateral blows to the head and also reduce the danger of exposure to low voltage electrical conductors. This type and class of helmet provides a higher level of protection compared to Type I helmets and class E helmets. Type II helmets have a brim that extends around the entire helmet, providing additional coverage and protection. Class G helmets are designed to protect against low voltage electrical conductors up to 2,200 volts. Therefore, Type II, class G safety helmets are the correct choice for this scenario.

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90. (220) Which traffic safety course improves driving by identifying and changing behavioral patterns that cause unsafe acts?

Explanation

Traffic safety courses are designed to improve driving skills and promote safe behavior on the road. In this case, option I suggests that the course focuses on identifying and changing behavioral patterns that lead to unsafe acts. This means that the course aims to address the underlying causes of unsafe driving, such as aggressive behavior, distracted driving, or reckless habits. By targeting these behavioral patterns, the course can help individuals develop safer driving habits and reduce the likelihood of accidents or violations.

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91. (223) What document describes the safest and most efficient way to use primary and secondary roads on an installation?

Explanation

A base traffic circulation plan is a document that outlines the safest and most efficient way to use primary and secondary roads on an installation. It provides guidelines and instructions for traffic flow, road design, signage, and other factors that contribute to the overall safety and efficiency of the installation's traffic system. This plan takes into consideration the specific needs and characteristics of the installation, ensuring that traffic is properly managed and accidents are minimized. A traffic engineering study, USAF Traffic Safety Program guidebook, and Manual on Uniform Traffic Control Devices may provide additional information and guidelines, but the base traffic circulation plan is the document that specifically addresses the safest and most efficient use of roads on the installation.

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92. (201) Who must provide personnel with the approved eye protection required to do their job safely?

Explanation

The functional manager is responsible for providing personnel with the approved eye protection required to do their job safely. This means that it is their duty to ensure that employees have the necessary protective equipment to protect their eyes while performing their tasks. The supervisor may also play a role in enforcing the use of eye protection, but the ultimate responsibility lies with the functional manager. The bioenvironmental engineering department may be involved in conducting safety assessments and recommending appropriate eye protection, but they are not directly responsible for providing it.

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93. (204) Which principle accurately describes the difference between local exhaust and general ventilation?

Explanation

Local exhaust ventilation is usually preferred because it handles a smaller volume of air than general ventilation. This means that local exhaust ventilation is more effective in removing air contaminants at the source, as it directly captures and removes them before they can spread into the surrounding atmosphere. General ventilation, on the other hand, dilutes the air contaminants by circulating larger volumes of air, but may not be as effective in removing them completely.

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94. (209) Energized circuits located within how many feet of emergency showers must be protected by a ground fault circuit interrupter?

Explanation

Energized circuits located within five feet of emergency showers must be protected by a ground fault circuit interrupter. This is necessary to prevent electrical shock in the event of a ground fault, which could occur if water from the shower comes into contact with the electrical circuit. The ground fault circuit interrupter detects any imbalance in the electrical current and quickly shuts off the power to prevent injury.

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95. (210) Who must approve the use of portable space heaters?

Explanation

The base civil engineer must approve the use of portable space heaters. This is because the base civil engineer is responsible for ensuring the safety and compliance of all structures and systems on the base, including heating systems. They have the expertise and authority to determine whether the use of portable space heaters is safe and appropriate in a given situation. The approval of the base civil engineer is necessary to prevent any potential hazards or accidents that may arise from the use of these heaters.

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96. (209) Whether in use or not, belts, lanyards, and lifelines must be inspected at least every  

Explanation

Belts, lanyards, and lifelines are safety equipment that are used to protect workers from falls. Regular inspections are necessary to ensure that these equipment are in good condition and can effectively perform their intended function. Inspecting them every six months strikes a balance between ensuring safety and minimizing disruption to work. This timeframe allows for timely identification of any wear and tear, damage, or deterioration that may occur during use or storage. Regular inspections help to prevent accidents and ensure that the equipment is reliable and safe for use.

Submit
97. (209) Which reason does not constitute a requirement to replace insulating matting?

Explanation

The reason "It is worn to two-thirds of its original thickness" does not constitute a requirement to replace insulating matting because it does not meet the criteria for replacement. The question implies that there are certain conditions under which insulating matting needs to be replaced, and the other three reasons provided (perforation, wearing to one-half of original thickness, and embedded metallic chips) meet those conditions. However, wearing to two-thirds of its original thickness does not meet the criteria for replacement, suggesting that the matting can still be used.

Submit
98. (204) The push-pull system is an example of which local exhaust ventilation system?

Explanation

The push-pull system is a type of local exhaust ventilation system that uses two hoods, one for capturing the contaminated air (pull) and another for supplying clean air (push). This system is commonly used in situations where there is a need to control airborne contaminants, such as in spray booths where hazardous substances are released during the spraying process. An exterior hood is typically used in this system to capture the contaminated air at the source before it disperses into the surrounding environment.

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99. (209) A safety belt and harness assembly must be capable of withstanding a tensile load of at least

Explanation

A safety belt and harness assembly must be able to withstand a certain amount of force in order to effectively protect the wearer. In this case, the correct answer is 4,000 pounds. This means that the safety belt and harness assembly must be able to withstand a tensile load of at least 4,000 pounds without breaking or failing. This ensures that the assembly is strong enough to withstand significant force and provide adequate protection to the wearer in the event of an accident or sudden stop.

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100. (225) Which agency establishes inspection standards for radio frequency radiation safety programs?

Explanation

The Air Force Safety Center is the agency that establishes inspection standards for radio frequency radiation safety programs. They are responsible for ensuring that safety protocols and guidelines are in place to protect individuals from the potential harmful effects of radio frequency radiation. This includes setting standards for equipment, training, and monitoring to minimize the risk of exposure to radio frequency radiation in the Air Force.

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(221) All Air Force personnel must wear seatbelts at all times with...
(213) Which type of hammer should be used for heading rivets?
(219) In a machine shop, how many inches wide should aisles be to...
(221) What is the speed limit for forklifts inside of warehouses?
(225) Which is an example of ionizing radiation?
(211) During an inspection, if you believe that the facility does not...
(213) Which hammer is made for heavy hitting?
(214) What common behavior creates safety hazards when using...
(219) The floor loading capacity of a machine shop is determined by...
(201) The amount of light to be provided in a given location is based...
(203) What solution is a last resort for controlling exposure to...
(205) Who must sign the entry permit prior to workers entering a...
(208) Which equipment protects the upper part of the foot from hot...
(220) Which traffic safety course may be commander directed for...
(221) Who determines (or designates someone to determine) when and...
(223) A traffic engineering study would be useful when
(208) Which type glove must be used as outer protection when rubber...
(208) Which class safety-toe shoe is the only one approved for use by...
(214) Which type of pliers is used for general electric work where...
(214) What factor controls the "binding" of hacksaw blades?
(215) When using a portable sander, what should be done to protect the...
(218) If a machine guard opens when stock is moved into the danger...
(222) What is a good way to gauge the impact of your restraint...
(210) If during an annual inspection of the child development center...
(214) Which precaution must you take to avoid possible injury, as well...
(215) On an electric drill, the chuck
(215) A twist drill bit with four flutes should only be used to
(216) Maintenance on soldering irons and guns is primarily centered on...
(217) To prevent mishaps involving machinery, the best action, which...
(224) Who is responsible for the initial classification of new lasers?
(203) Installing a guard or barrier between the worker and the...
(205) All members of confined-space rescue teams must have hands-on...
(206) A toxic gas and vapor concentration of three percent is...
(209) What is the minimum distance a strip of insulating matting must...
(210) What elements must be present in order for a fire to start?
(212) Which color code is used for piping system containers that...
(226) Lateral epicondylitis, or tennis elbow, is caused by
(227) For a shop where workers are exposed to bloodborne pathogens,...
(202) Noise exposure limits are established by the
(202) In the hearing conservation program, the safety professional
(204) What agency reviews the initial design for any ventilation...
(205) Which of the following conditions creates a hazardous...
(207) Which type of goggles is designed to protect the eyes from...
(208) Who is responsible for testing rubber insulating gloves and...
(212) In color coding, black lettering should not be used on which...
(218) Which type of machine guard is preferable to all others?
(202) When a procedure or piece of equipment exceeds the limits of...
(206) Which type of self-contained breathing apparatus is simple to...
(214) When using files, what action frequently leads to puncture...
(218) Which safety device resembles an interlocked machine guard?
(220) Which traffic safety course must be reviewed annually by the...
(202) If you were working in a machine shop, your workplace would be...
(204) Any type of fan device that aids the flow of air in an area is...
(205) Name the three primary means of rescue from confined spaces.
(206) Self-contained breathing apparatus respirators
(213) Which type of chisel should be used to cut sheet metal?
(219) To ensure proper layout, equipment and machinery must be...
(225) A radio frequency radiation (RFR) safety program should
(225) Refresher training for the radio frequency radiation awareness...
(205) Oxygen deficiency is first reached when oxygen content is below
(206) Which type of respirator offers protection against light...
(206) When wearing a hose mask respirator without a blower unit (Type...
(226) Which factor contributes to work-related musculoskeletal...
(204) What are the two main purposes of a spray booth?
(209) The maximum time and distance between hazardous operations or...
(212) Which color code is used for designating electrical conduit and...
(213) Which wrench has the disadvantage of tending to round off the...
(214) Which screwdriver is especially useful in getting to screws...
(223) Who regulates the movement of traffic and personnel on an Air...
(224) Which laser class is of medium power and requires control...
(205) An atmosphere is considered oxygen-enriched when oxygen content...
(207) Which type of goggles should be used when ordinary goggles dust...
(210) What minimum distance must be maintained between a heat...
(215) For small-capacity electrical tools, double insulation can be...
(216) On a power-actuated hand tool, the steel muzzle guard must be at...
(218) Which safety device uses operator wristbands to ensure a...
(223) If your base has no traffic engineer, the installation commander...
(207) Safety helmets can be broken down into how many types and...
(208) Rubber insulating gloves in storage must be dielectric tested...
(215) What is the easiest way to protect the operator of an...
(217) Which is not a purpose of machine guards?
(221) An all-terrain vehicle is a three- or four-wheeled vehicle that...
(202) Who establishes the monitoring program in the hearing...
(217) What hazard is commonly associated with a transverse motion?
(225) Which agency is responsible for providing initial and annual...
(225) Which agency assists unit commanders and shop supervisors with...
(201) Which of the following is not a primary objective of the vision...
(217) In-running nip points are a specific danger of which type of...
(207) Which type and class of safety helmet will offer protection...
(220) Which traffic safety course improves driving by identifying and...
(223) What document describes the safest and most efficient way to use...
(201) Who must provide personnel with the approved eye protection...
(204) Which principle accurately describes the difference between...
(209) Energized circuits located within how many feet of emergency...
(210) Who must approve the use of portable space heaters?
(209) Whether in use or not, belts, lanyards, and lifelines must be...
(209) Which reason does not constitute a requirement to replace...
(204) The push-pull system is an example of which local exhaust...
(209) A safety belt and harness assembly must be capable of...
(225) Which agency establishes inspection standards for radio...
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