Toughest IFC Fire Inspector Exam: Quiz!

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  • 1/100 Questions

    A clear space of not less than _____ feet shall be maintained around fire hydrants.

    • 2
    • 3
    • 5
    • 6
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About This Quiz

This State Certification Quiz Exam is for Fire Inspector Level 2. The International Fire Code (IFC) is designed to recognize hazards related to fire, explosion, or hazardous materials. This quiz is based upon the International Fire Code with North Carolina amendments. There is a list of 100 questions with multiple-choice options. Read the questions carefully and answer.

Toughest IFC Fire Inspector Exam: Quiz! - Quiz

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  • 2. 

    According to the fire code, water supplies for fire protection shall consist of all of the following except:

    • Pressure tanks

    • Water mains

    • Reservoirs

    • Bucket brigades

    Correct Answer
    A. Bucket brigades
    Explanation
    According to the fire code, water supplies for fire protection should include pressure tanks, water mains, and reservoirs. However, bucket brigades are not considered as a formal water supply for fire protection. Bucket brigades involve manually passing buckets of water from one person to another, which may not be efficient or effective in extinguishing fires compared to the other mentioned water supply options.

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  • 3. 

    A “Big Box” type occupancy such as a Walmart is classified as a _____ type occupancy.

    • Storage

    • Mercantile

    • Sales

    • Mixed

    Correct Answer
    A. Mercantile
    Explanation
    A "Big Box" type occupancy such as a Walmart is classified as a Mercantile type occupancy. This classification is appropriate because Walmart is a large retail store that sells a wide range of products to the public. The term "mercantile" refers to the buying and selling of goods, which aligns with the nature of a Walmart store.

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  • 4. 

    Waste cans in flammable finishing operations shall have its contents properly disposed of _____.

    • Daily

    • Weekly

    • Monthly

    • As needed

    Correct Answer
    A. Daily
    Explanation
    In flammable finishing operations, waste cans need to have their contents properly disposed of daily. This is important because flammable materials can pose a safety risk if they accumulate over time. By disposing of the contents daily, the risk of a fire or explosion is minimized, ensuring the safety of the workplace and its employees.

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  • 5. 

    Address numbers for buildings shall be a minimum _____ inches high.

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 4
    Explanation
    Address numbers for buildings are typically required to be a minimum of 4 inches high. This standard size ensures that the numbers are visible and easily readable from a distance, which is important for emergency responders and postal services, among others. However, local building codes and regulations may have specific requirements for address number size, so it's essential to check with the local authorities for precise guidelines in a particular area.

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  • 6. 

    According to the code’s definition:  _____________ is a door-latching assembly incorporating a device that releases the latch upon the application of a force in the direction of egress travel.

    • Exit Hardware

    • Fire Exit Hardware

    • Panic Hardware

    • Fire Door Hardware

    Correct Answer
    A. Panic Hardware
    Explanation
    Panic hardware is a door-latching assembly that includes a device designed to release the latch when a force is applied in the direction of egress travel. This type of hardware is commonly used in emergency exit doors to ensure quick and easy evacuation during a panic situation. It allows people to easily exit a building by simply pushing on the door, without the need for turning a knob or operating a latch mechanism.

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  • 7. 

    What is the maximum amount of days that an Operational permit may be extended by a Fire Official?

    • 30 days

    • 60 days

    • 120 days

    • 180 days

    Correct Answer
    A. 30 days
    Explanation
    A Fire Official may extend an Operational permit for a maximum of 30 days. This extension is typically granted when there are special circumstances or unforeseen delays that prevent the permit holder from completing the necessary requirements for full compliance within the original permit period.

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  • 8. 

    Doors shall swing in the direction of egress travel where serving an occupant load of _____ or more persons or a high hazard occupancy.

    • 25

    • 50

    • 100

    • 200

    Correct Answer
    A. 50
    Explanation
    Doors shall swing in the direction of egress travel where serving an occupant load of 50 or more persons or a high hazard occupancy. This means that if a building has 50 or more people or is used for a high hazard activity, the doors should swing in the direction of the exit to ensure a smooth and efficient evacuation in case of an emergency.

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  • 9. 

    What amount of a Highly Toxic compressed gas requires a permit?

    • 200 cubic feet

    • 500 cubic feet

    • 600 cubic feet

    • Any amount

    Correct Answer
    A. Any amount
    Explanation
    Any amount of a Highly Toxic compressed gas requires a permit. This means that regardless of the quantity, whether it is 200 cubic feet, 500 cubic feet, or 600 cubic feet, a permit is necessary. Highly Toxic compressed gases are substances that pose significant health hazards and can cause severe harm or even death if mishandled or released into the environment. Therefore, to ensure proper control and safety measures, a permit is required for any amount of this type of gas.

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  • 10. 

    NFPA _____ governs maintenance standards for fire alarms.

    • 25

    • 13

    • 10

    • 72

    Correct Answer
    A. 72
    Explanation
    NFPA 72 is the National Fire Alarm and Signaling Code, which governs maintenance standards for fire alarms. This code provides guidelines for the inspection, testing, and maintenance of fire alarm systems to ensure their proper functioning and reliability. It covers various aspects such as alarm notification appliances, control units, initiating devices, and emergency communication systems. Following NFPA 72 helps to ensure that fire alarm systems are regularly maintained, reducing the risk of false alarms and ensuring that they will effectively detect and alert occupants in the event of a fire.

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  • 11. 

    During construction and demolition operations Class I and II liquids shall be kept in __________  safety containers.

    • Metal

    • Approved

    • Closed

    • Self-Closing

    Correct Answer
    A. Approved
    Explanation
    During construction and demolition operations, it is necessary to store Class I and II liquids in safety containers that have been approved for this purpose. This ensures that the containers meet the required safety standards and can effectively contain and prevent any leakage or spillage of these hazardous liquids. Using approved safety containers is crucial to minimize the risk of accidents, protect the environment, and comply with safety regulations.

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  • 12. 

    What is the minimum number of fire extinguishers to be provided inside dry cleaning rooms containing a Type II system?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 2
    Explanation
    In dry cleaning rooms containing a Type II system, it is necessary to have at least two fire extinguishers. This is because Type II systems are designed to suppress fires involving flammable liquids. These types of fires can spread quickly and can be difficult to control, so having multiple fire extinguishers ensures that there are enough resources to effectively extinguish the fire and prevent it from spreading further.

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  • 13. 

    All of the following are fire alarm initiating devices except:

    • Manual pull stations

    • Smoke detectors

    • Water flow devices

    • Horn/Strobes

    Correct Answer
    A. Horn/Strobes
    Explanation
    Horn/Strobes are not fire alarm initiating devices because they do not directly detect or sense fires. Manual pull stations, smoke detectors, and water flow devices are all examples of fire alarm initiating devices because they are designed to detect the presence of fire or smoke and initiate an alarm. Horn/Strobes, on the other hand, are notification appliances that produce audible and visual signals to alert occupants of a building when a fire alarm has been initiated by one of the other devices.

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  • 14. 

    For areas having fixed seating without dividing arms, the occupant load shall not be less than the number of seats based on one person for each __________ of seating length.

    • 12 inches

    • 16 inches

    • 18 inches

    • 18 feet

    Correct Answer
    A. 18 inches
    Explanation
    For areas with fixed seating without dividing arms, the occupant load should be based on one person for every 18 inches of seating length. This means that for every 18 inches of seating space, there should be one person accounted for in the occupant load calculation. This ensures that there is enough seating available for the expected number of occupants in the area.

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  • 15. 

    An automatic sprinkler system must be installed in a Group A1 occupancy exceeding _____ sq. ft

    • 10,000

    • 12,000

    • 15,000

    • 18,000

    Correct Answer
    A. 12,000
    Explanation
    903.2.1.1

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  • 16. 

    Ventilation for spraying applications of glass fibre reinforced plastic shall maintain flammable vapours in the resin application area to less than _____ of the LFL

    • 25 %

    • 30 %

    • 40 %

    • 50 %

    Correct Answer
    A. 25 %
    Explanation
    1509.6

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  • 17. 

    The NFPA standard for fire extinguishers is:

    • NFPA 13

    • NFPA 24

    • NFPA 25

    • NFPA 10

    Correct Answer
    A. NFPA 10
    Explanation
    The NFPA standard for fire extinguishers is NFPA 10. This standard provides guidelines for the selection, installation, inspection, maintenance, and testing of portable fire extinguishers. It covers various types of fire extinguishers and their appropriate use for different classes of fires. NFPA 10 also includes requirements for training individuals on the proper use of fire extinguishers and the importance of regular inspections and maintenance to ensure their effectiveness in an emergency situation.

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  • 18. 

    When combustible materials arrive on a construction site ____________ shall be provided by permanent or temporary means.

    • Water supply

    • Access roads

    • Emergency lighting

    • Fire department connections

    Correct Answer
    A. Water supply
    Explanation
    When combustible materials arrive on a construction site, a water supply should be provided by permanent or temporary means. This is necessary to ensure that there is a readily available source of water in case of a fire or any other emergency situation involving combustible materials. Having a water supply on site can help to quickly extinguish fires and prevent them from spreading, minimizing potential damage and ensuring the safety of workers and the site.

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  • 19. 

    The average Ambient Sound Level for occupancy must be measured over a _____ hour time period.

    • 12

    • 24

    • 36

    • 48

    Correct Answer
    A. 24
    Explanation
    The average Ambient Sound Level for occupancy must be measured over a 24-hour time period. This is because a 24-hour time period provides a comprehensive and accurate representation of the sound levels experienced throughout the day. It takes into account the variations in sound levels that may occur during different times, such as peak hours and quieter periods, ensuring a more reliable measurement of the overall ambient sound level.

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  • 20. 

    A class I solvent used for dry cleaning has a flashpoint below _______.

    • 100 degrees F

    • 150 degrees F

    • 100 degrees C

    • 150 degrees C

    Correct Answer
    A. 100 degrees F
    Explanation
    The flashpoint of a solvent refers to the minimum temperature at which it can ignite when exposed to an open flame or spark. In this case, the class I solvent used for dry cleaning has a flashpoint below 100 degrees F. This means that the solvent is highly volatile and can easily catch fire at temperatures below 100 degrees Fahrenheit.

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  • 21. 

    The reference for explosion protection for electrical installations can be found in __________.

    • NFPA 12

    • National Electrical Code

    • SBC Electrical Code

    • Vol. IV NCSBC

    Correct Answer
    A. National Electrical Code
    Explanation
    The correct answer is the National Electrical Code. The National Electrical Code is a set of regulations and standards that provides guidelines for the safe installation and operation of electrical systems. It includes provisions for explosion protection in electrical installations, ensuring that electrical equipment is designed and installed in a way that minimizes the risk of explosions. This code is widely recognized and followed in the United States and is a valuable resource for professionals working with electrical installations.

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  • 22. 

    The stairwell of a sprinklered mercantile building shall have an egress width of _____ per occupant served.

    • 0.2

    • 0.3

    • 0.4

    • 0.5

    Correct Answer
    A. 0.3
    Explanation
    The egress width of the stairwell in a sprinklered mercantile building should be 0.3 per occupant served. This means that for every person in the building, there should be 0.3 units of width available in the stairwell for them to safely exit the building in case of an emergency. This ensures that there is enough space for people to move quickly and efficiently during an evacuation, reducing the risk of overcrowding and potential accidents.

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  • 23. 

    The stairwell of a sprinklered mercantile building shall have an egress width of _____ per occupant served.

    • 0.2

    • 0.3

    • .04

    • 0.5

    Correct Answer
    A. 0.3
    Explanation
    The International Building Code (IBC) specifies that stairwells in sprinklered mercantile buildings must have an egress width of 0.3 inches per occupant. This ensures adequate space for safe evacuation during emergencies, even with a sprinkler system in place. This standard is crucial for fire safety and preventing overcrowding in escape routes.

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  • 24. 

    Records for fire protection systems test shall be maintained on-premises for a minimum of  _____.

    • 6 months

    • 1 year

    • 3 years

    • For the life of the building

    Correct Answer
    A. 3 years
    Explanation
    Records for fire protection systems test should be kept on-premises for a minimum of 3 years. This is necessary to ensure that there is a documented history of the testing and maintenance of the fire protection systems. These records can be used for reference, auditing, and compliance purposes. Keeping the records for a minimum of 3 years allows for easy access and retrieval of information when needed.

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  • 25. 

    Spray booths shall be installed such that a clear space of not less than ____ feet shall be maintained on all sides of the spray booth.

    • 3

    • 5

    • 10

    • 15

    Correct Answer
    A. 3
    Explanation
    Spray booths need to have a clear space of at least 3 feet on all sides. This is important for safety reasons, as it allows for proper ventilation and prevents any potential hazards or accidents. Having enough space around the spray booth ensures that there is enough room for operators to work safely and for any equipment or materials to be stored properly.

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  • 26. 

    In regards to Dry Cleaning, which of the following definitions best describes a Class II solvent?

    • Liquid having a flash point below 100 degrees Fahrenheit

    • Liquid having a flash point at or above 100 and below 140 degrees Fahrenheit

    • Liquid having a flash point above 140 but below 200 degrees Fahrenheit

    • Liquid having a flash point above 200 degrees Fahrenheit

    Correct Answer
    A. Liquid having a flash point at or above 100 and below 140 degrees Fahrenheit
    Explanation
    Class II solvents, in the context of dry cleaning, refer to liquids with specific flash point ranges. These solvents have a flash point at or above 100 degrees Fahrenheit but below 140 degrees Fahrenheit. They are commonly used in dry cleaning processes due to their properties and effectiveness in removing stains from fabrics.

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  • 27. 

    The bottom of the overflow connection for dip tanks applying flammable finishes shall not be less than __________ below the top of the tank.

    • 6 inches

    • 12 inches

    • 18 inches

    • 30 inches

    Correct Answer
    A. 6 inches
    Explanation
    The bottom of the overflow connection for dip tanks applying flammable finishes should be at least 6 inches below the top of the tank. This requirement is in place to ensure that there is sufficient space between the surface of the liquid and the overflow connection, reducing the risk of spills or overflow. By having this minimum distance, it allows for a safety buffer and helps prevent potential accidents or fires.

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  • 28. 

    The design and construction of spray booths shall be in accordance with NFPA:

    • 72

    • 70

    • 33

    • 13

    Correct Answer
    A. 33
    Explanation
    The correct answer is 33. The design and construction of spray booths should be in accordance with NFPA 33. This standard provides guidelines for the design, installation, operation, and maintenance of spray booths used for application of flammable or combustible materials. It covers various aspects such as ventilation, electrical equipment, fire protection systems, and safety precautions to minimize the risk of fire and explosion hazards. Compliance with NFPA 33 ensures the safety of personnel working in spray booths and helps prevent accidents and property damage.

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  • 29. 

    A wet chemical fire suppression system shall be inspected every _____ for proper operation.

    • Year

    • 2 years

    • 6 months

    • 3 months

    Correct Answer
    A. 6 months
    Explanation
    A wet chemical fire suppression system should be inspected every 6 months for proper operation. This regular inspection is necessary to ensure that the system is functioning correctly and can effectively suppress fires. By inspecting the system every 6 months, any potential issues or malfunctions can be identified and addressed promptly, reducing the risk of fire damage and ensuring the safety of the premises and its occupants.

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  • 30. 

    Vehicle access for fire fighting during construction and demolition operations shall be provided to within __________ of temporary or permanent fire department connections.

    • 25 feet

    • 50 feet

    • 75 feet

    • 100 feet

    Correct Answer
    A. 100 feet
    Explanation
    During construction and demolition operations, it is crucial to provide vehicle access for fire fighting. This is necessary for the fire department to connect their equipment to the water supply in order to combat any potential fires. To ensure sufficient access, the distance to the temporary or permanent fire department connections should be within 100 feet. This allows for efficient and effective fire fighting operations, reducing the risk of extensive damage or loss of life in case of an emergency.

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  • 31. 

    Portable fire extinguishers in the vicinity of dips tanks shall be suitable for flammable and combustible liquids as specified for __________ occupancies.

    • Extra Hazard

    • High

    • Extra (high) Hazard

    • Ordinary

    Correct Answer
    A. Extra (high) Hazard
    Explanation
    1505.4.2

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  • 32. 

    Fuel servicing personnel at aviation facilities shall receive approved training in the operation of __________.

    • First Aid

    • Fire Extinguishing Equipment

    • Defibrillators

    • Both A & B

    Correct Answer
    A. Fire Extinguishing Equipment
    Explanation
    Fuel servicing personnel at aviation facilities are required to receive approved training in the operation of fire extinguishing equipment. This is crucial for their safety and the safety of others in case of a fire emergency. As they work with flammable materials, it is important for them to be knowledgeable and skilled in using fire extinguishers effectively to control and extinguish fires. First Aid and defibrillators may also be important skills for personnel to have, but the question specifically mentions the operation of fire extinguishing equipment as a mandatory training requirement.

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  • 33. 

    For operations allowing a limited spraying area, the aggregate surface area to be sprayed with a flammable finish shall not exceed _____ sq. ft.

    • 5

    • 8

    • 9

    • 10

    Correct Answer
    A. 9
    Explanation
    For operations allowing a limited spraying area, the aggregate surface area to be sprayed with a flammable finish shall not exceed 9 sq. ft. This means that when using a flammable finish for spraying, the total area that can be sprayed should not exceed 9 square feet. This limitation is likely in place to ensure safety and prevent the risk of fire or other hazards associated with flammable materials.

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  • 34. 

    How often must a business occupancy be inspected?

    • Every year

    • Every other year

    • Every three years

    • Every five years

    Correct Answer
    A. Every three years
    Explanation
    A business occupancy must be inspected every three years. This regular inspection ensures that the business is compliant with safety regulations and that any potential hazards are identified and addressed promptly. By conducting inspections on a regular basis, the business can maintain a safe environment for its employees and customers, reducing the risk of accidents or incidents. This also allows for any necessary repairs or upgrades to be made in a timely manner, ensuring the overall safety and well-being of everyone involved.

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  • 35. 

    An operational permit may be required for the storage of lumber exceeding _____ board feet.

    • 10,000

    • 100,000

    • 1,000,000

    • 10,001

    Correct Answer
    A. 100,000
    Explanation
    105.6.25

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  • 36. 

    Gates for required fences surrounding bulk tire storage shall be at least _____ feet wide.

    • 15

    • 18

    • 20

    • 25

    Correct Answer
    A. 20
    Explanation
    The correct answer is 20 because it is the minimum width required for gates surrounding bulk tire storage. This width ensures that vehicles and equipment can easily enter and exit the storage area, allowing for efficient transportation and handling of the tires. A narrower gate may cause difficulties in maneuvering large vehicles or moving multiple tires at once, potentially leading to accidents or delays in operations. Therefore, a 20-foot wide gate is necessary to ensure smooth and safe access to the bulk tire storage area.

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  • 37. 

    According to the code’s definition: That portion of a means of egress system that leads from any occupied point in a building or structure to an exit is a(n).

    • Exit Access

    • Exit Discharge

    • Exit

    • Exit Enclosure

    Correct Answer
    A. Exit Access
    Explanation
    The correct answer is Exit Access. According to the code's definition, the portion of a means of egress system that leads from any occupied point in a building or structure to an exit is referred to as the exit access. This includes corridors, aisles, ramps, and other means of travel that occupants use to reach an exit during an emergency.

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  • 38. 

    13R type sprinkler systems are allowed in Group R2 buildings up to and including _____ stories in height.

    • 2

    • 3

    • 4

    • 5

    Correct Answer
    A. 4
    Explanation
    Group R2 buildings are residential occupancies that include multi-family dwellings such as apartments and townhouses. According to the National Fire Protection Association (NFPA) 13 standard for the installation of sprinkler systems, 13R type sprinkler systems are allowed in Group R2 buildings up to and including 4 stories in height. This means that buildings with 4 or fewer stories can use the 13R type sprinkler system for fire protection.

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  • 39. 

    Asphalt and tar kettles at construction sites shall be in accordance with Section _____ of the fire code.

    • 301

    • 302

    • 303

    • 305

    Correct Answer
    A. 303
    Explanation
    The correct answer is 303 because Section 303 of the fire code specifies the regulations and requirements for asphalt and tar kettles at construction sites. This section ensures that proper safety measures are in place to prevent fires and accidents related to the use of these kettles. By following the guidelines outlined in Section 303, construction sites can minimize the risk of fire hazards and ensure the safety of workers and the surrounding environment.

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  • 40. 

    Automatic sprinklers shall be installed under obstructions exceeding _____ feet in width.

    • 2

    • 4

    • 6

    • 8

    Correct Answer
    A. 4
    Explanation
    Automatic sprinklers shall be installed under obstructions exceeding 4 feet in width. This means that if there is an obstruction, such as a beam or a wall, that is wider than 4 feet, automatic sprinklers must be installed underneath it. This is important because it ensures that the entire area is covered by the sprinkler system, reducing the risk of fire spreading and increasing the chances of extinguishing it effectively.

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  • 41. 

    Magazines containing explosives shall be inspected at a maximum of _____ day intervals.

    • 3

    • 5

    • 7

    • 10

    Correct Answer
    A. 7
    Explanation
    Magazines containing explosives should be inspected regularly to ensure safety. The correct answer is 7 because it suggests that inspections should be conducted every 7 days. This frequency allows for timely identification of any potential issues or hazards that may arise in the storage of explosives. Regular inspections help to prevent accidents and maintain compliance with safety regulations.

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  • 42. 

    Procedures on how to store ammonium nitrate can be found in which NFPA standard?

    • 61

    • 69

    • 120

    • 400

    Correct Answer
    A. 400
    Explanation
    The source standard for 1910.109(i) of the Occupational Safety and Health Administration (OSHA) regulations is NFPA 400 - 1970. This standard primarily deals with the storage and possession of ammonium nitrate in various industries, except for transportation and U.S. Coast Guard-regulated facilities.

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  • 43. 

    Valves controlling the discharge of ethylene used for fruit and crop ripening processes shall be set to limit the concentration of gas in air below _____ (ppm).

    • 1,000,000

    • 10,000

    • 50,000

    • 1,000

    Correct Answer
    A. 1,000
    Explanation
    Valves controlling the discharge of ethylene used for fruit and crop ripening processes should be set to limit the concentration of gas in the air below 1,000 ppm. This is important because high concentrations of ethylene can have detrimental effects on the quality and shelf life of fruits and crops. By keeping the concentration below this threshold, the ripening process can be controlled effectively without causing any harm to the produce.

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  • 44. 

    Exit sign placement shall be such that no point in an exit access corridor is more than __________ from the nearest visible exit sign.

    • 25 feet

    • 50 feet

    • 75 feet

    • 100 feet

    Correct Answer
    A. 100 feet
    Explanation
    Exit signs are a crucial part of ensuring the safety of individuals in emergency situations. The placement of exit signs plays a significant role in guiding people towards the nearest exit. According to the given answer, exit sign placement should be such that no point in an exit access corridor is more than 100 feet away from the nearest visible exit sign. This ensures that exit signs are easily visible and accessible, allowing individuals to quickly locate and reach the nearest exit in case of an emergency.

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  • 45. 

    A Limited Spray Space is an area in which operations for touch-up or spot painting of a surface area of ___ square feet or less are conducted.

    • 3

    • 5

    • 9

    • 10

    Correct Answer
    A. 9
    Explanation
    A Limited Spray Space is an area in which operations for touch-up or spot painting of a surface area of 9 square feet or less are conducted. This means that any touch-up or spot painting done in this area will be limited to a small surface area of 9 square feet or less.

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  • 46. 

    Storage, Use and handling of Flammable Cryogenic Fluids such as Hydrogen shall be in accordance with NFPA _____.

    • 10

    • 33

    • 55

    • 70

    Correct Answer
    A. 55
    Explanation
    The correct answer for this question is 55. The storage, use, and handling of flammable cryogenic fluids such as hydrogen should be in accordance with NFPA 55. NFPA 55 provides guidelines and safety requirements for the storage and handling of compressed gases and cryogenic fluids. It covers various aspects such as storage containers, ventilation, fire protection, and emergency procedures to ensure the safe handling of flammable cryogenic fluids.

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  • 47. 

    3307.2 During construction and demolition operations, blasting operations shall be conducted in accordance with:

    • Chapter 19

    • Chapter 20

    • Chapter 56 

    • Chapter 34

    Correct Answer
    A. Chapter 56 
    Explanation
    Blasting operations during construction and demolition operations should be conducted in accordance with Chapter 56. This chapter likely contains regulations, guidelines, or safety measures specifically related to blasting operations. It is important to follow these guidelines to ensure the safety of workers and the surrounding environment during such operations.    

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  • 48. 

    Ethylene generators for fruit and crop ripening processes shall be used in rooms having a volume of not less than _________ 

    • 100 cubic feet

    • 500 cubic feet

    • 750 cubic feet

    • 1000 cubic feet

    Correct Answer
    A. 1000 cubic feet
    Explanation
    Ethylene generators are used in fruit and crop ripening processes to accelerate the ripening process. Ethylene gas is released by these generators, which helps in the production of enzymes responsible for ripening. To ensure effective ripening, it is necessary to have a minimum volume of 1000 cubic feet in the room where the generator is used. This volume allows for proper distribution and concentration of the ethylene gas, ensuring efficient ripening of the fruits and crops.

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  • 49. 

    Examples of fumigants are all except:

    • Hydrogen cyanide

    • Carbon disulfide

    • Verminium bromide

    • Methyl bromide

    Correct Answer
    A. Verminium bromide
    Explanation
    Verminium bromide is not an example of a fumigant. Fumigants are substances that are used to kill pests, such as insects or rodents, by releasing toxic gases or vapors. Examples of fumigants include hydrogen cyanide, carbon disulfide, and methyl bromide. However, verminium bromide is not a known fumigant.

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