CDC 2w051b Vol. 1 Section 1 Questions

When using a bench grinder or wire wheel, it is important to always use eye or face protection. This is because grinding or wire wheeling can create sparks and debris that can potentially cause eye or face injuries. Eye or face protection, such as safety glasses or a face shield, helps to prevent these injuries by providing a barrier against flying particles. Therefore, it is crucial to wear eye or face protection to ensure safety while using a grinder.

The purpose of the spring guard on a circular saw is to snap back automatically when the cut is complete. This is done to protect both the user and the tool. By snapping back, the guard prevents accidental contact with the blade, reducing the risk of injury. Additionally, it helps to keep the blade covered when not in use, ensuring the safety of the user and prolonging the lifespan of the tool.

To change drill bits, you need to firmly install the new chuck into the chuck jaws and tighten it using a drill chuck key. It is important to ensure that the drill is unplugged during this process to avoid any accidents or injuries.

A grinder is a tool that is commonly used for sharpening and grinding tools, removing excess metal from workpieces, and smoothing surfaces. It is not used for destroying government property or demilitarizing tools. The purpose of a grinder is to modify tools by improving their sharpness and removing any imperfections or excess material.

The correct answer is "Blade must be revolving at full speed before it contacts material being cut." This is because starting the blade at full speed ensures that it can effectively cut through the material without getting stuck or causing any damage. Gradually placing the blade against the material or maintaining a slow cut flow may result in an inefficient or ineffective cut. Bringing the blade up to full speed throughout the cut may also cause the blade to catch or bind on the material. Therefore, it is important to have the blade spinning at full speed before it comes into contact with the material being cut.

Wire rope is the most common type of sling used in everyday jobs because it is strong, durable, and versatile. It is made up of multiple strands of metal wire twisted together, providing excellent strength and resistance to abrasion. Wire rope slings can be easily adjusted to fit various load sizes and shapes, making them suitable for a wide range of lifting and rigging applications. Additionally, wire rope slings have a high weight capacity, making them ideal for heavy-duty lifting tasks.

Prior to drilling in metal or other hard surfaces, it is important to use a center punch to provide the exact center of the hole to be drilled. This is necessary to ensure accuracy and prevent the drill from wandering or slipping off the desired drilling spot. By creating a small indentation with the center punch, it serves as a guide for the drill bit and helps to maintain control during the drilling process. This step is crucial for achieving precise and clean holes in hard materials.

The correct answer is "All of the Above." This means that all three safety precautions mentioned in the previous statements are necessary when dealing with pneumatic tools. Inspecting the air hose for defects, clearing the hose of water and other objects before connecting it, and stopping the flow of air before performing any maintenance or repairs are all important safety measures to ensure the proper and safe use of pneumatic tools.

The correct answer is to follow the specific tool technical order and/or instruction book for lubricating instructions. This means that the best way to determine when to lubricate a pneumatic tool is to consult the manufacturer's instructions or any provided technical order. These instructions will provide specific guidance on when and how often the tool should be lubricated to ensure optimal performance and longevity.

The correct answer is "All of the above" because it encompasses all the safety precautions mentioned in the options. Having only one spotter ensures clear communication and coordination during lifting operations. Only physically and mentally qualified operators should handle lifting devices to minimize the risk of accidents. Swinging or lifting a load over personnel can be extremely dangerous and should be avoided. Therefore, selecting "All of the above" ensures that all the mentioned safety precautions are followed for dealing with lifting devices.

The correct answer is "All of the Above" because any of the three reasons listed can be sufficient for replacing or repairing a wire-rope sling. Heat damage can weaken the sling and make it unsafe to use. Broken wires in the rope lay or strand can compromise the strength and integrity of the sling. And end attachments that are corroded, cracked, deformed, or worn can also affect the safety and performance of the sling. Therefore, if any of these issues are present, it is necessary to replace or repair the wire-rope sling.

The AN/PSM-37 is a device used to troubleshoot electrical and electronic circuits. It is designed to accurately identify and diagnose problems in these circuits, allowing for efficient repairs and maintenance. This tool is essential for technicians and engineers working with electrical systems, as it helps them pinpoint faults and ensure proper functioning of the circuits.

During recharging, the power switch must be in the OFF/CHARGE position. This is because when the switch is in this position, the device is turned off and the charging process can take place without any interruptions. The OFF/CHARGE position allows the battery to receive power from an external source and replenish its energy levels. Keeping the switch in this position ensures that the device is not in use while it is being charged, preventing any potential damage or interference with the charging process.

Before using a drill, it is important to check if the diameter of the hole to be drilled is within the capacity of the drill. This is necessary to ensure that the drill can effectively and safely drill the hole without causing any damage or accidents. Checking the drill's capacity beforehand helps to prevent any potential issues or malfunctions during the drilling process, ensuring a smooth and successful operation.

The most common diameter of an electric saw blade found in maintenance is 8 inches. This size is commonly used for various maintenance tasks such as cutting wood or other materials. It strikes a balance between being large enough to handle most cutting jobs while still being manageable and easy to use. Blades with larger diameters may be used for specialized applications, but an 8-inch blade is the most commonly used size in maintenance tasks.

A wrench is the correct answer because it is a pneumatic impact tool specifically designed for installing or removing nuts and bolts. A wrench uses compressed air to generate torque, allowing it to easily tighten or loosen fasteners. Hammers are not designed for this purpose as they are used for striking and driving nails or other objects. Sockets are used in conjunction with a wrench or ratchet to tighten or loosen nuts and bolts. Drills are used for drilling holes or driving screws, but they are not typically used for installing or removing nuts and bolts.

The safe and efficient operation of a pneumatic tool requires a specific amount of pressure, measured in pounds per square inch (PSI). In this case, the correct answer is 90 PSI, indicating that this is the optimal pressure for the tool to function effectively and safely.

The correct answer is "All of the Above" because the question is asking about the controls included in the operating controls of the 101-5BFG. The options listed, including Mechanical Zero, Ohms Add, Ohms Key, cover all the controls that are included in the operating controls of the 101-5BFG.

The correct answer is "inspecting the sling by passing your bare hand over the body of the sling." This is not a good safety practice because it can be dangerous to use your bare hand to inspect the sling. It is recommended to use gloves or other protective equipment when inspecting the sling to avoid any potential injuries.

When connecting a meter, it is important to verify that the power is off. This is a common practice because it ensures safety and prevents any potential electrical accidents or damage to the meter. By confirming that the power is off, the risk of electric shock or short circuits is minimized, allowing for a safer and more accurate measurement.

Only one person should coordinate the lifting operation. This is because having multiple people coordinating the operation can lead to confusion and miscommunication. By having a single person in charge, they can effectively manage and direct the lifting operation, ensuring that everyone involved follows the necessary protocols and stays safe.

An impact wrench is a powerful tool that is used to apply torque to fasteners. Excess pressure refers to the amount of pressure that exceeds the recommended or safe level for the specific task. In this context, a variation of 5 pounds of pressure while using an impact wrench can be considered serious because even a small increase in pressure can lead to over-tightening or damage to the fastener or the surrounding materials. Therefore, it is important to be cautious and ensure that the pressure applied is within the recommended range to avoid any potential issues.

The AN/PSM-37 can read voltage up to a maximum of 1,000 Volts without the test prod. However, when the test prod is used, it can read voltage up to a maximum of 5,000 Volts.

The socket lock ensures that the socket or attachment will not fly off. This mechanism securely locks the socket in place, providing a tight and stable connection. It prevents any accidental dislodging or detachment during use, ensuring safety and preventing any potential hazards or accidents.

Familiarity is the prerequisite of a safe operation when using lifting devices. This means that individuals should be familiar with the lifting device they are using, including its functions, controls, and safety features. Having familiarity with the device helps to ensure that it is used correctly and safely, reducing the risk of accidents or injuries. Skill with heavy machinery, hand-eye coordination, and knowledge are important factors as well, but without familiarity with the specific lifting device being used, these factors may not be sufficient for safe operation.

The AN/PSM-37 can read a maximum current of 1 ampere without a shunt, and 10 amperes with a shunt.

Hoist hooks must be replaced when they are more than 15% in excess of the normal throat opening or have more than a 10 degree twist from the plane. This is important because exceeding these limits can compromise the strength and stability of the hook, increasing the risk of accidents or failures during lifting operations. Regularly inspecting and replacing hoist hooks that exceed these thresholds helps ensure the safety and reliability of the lifting equipment.

AFOSH Standard 91-46 and Specific Manuals are the correct answer because they provide general guidance and safe lifting procedures for lifting devices. These publications outline the necessary precautions and techniques to ensure safe lifting practices. They cover a wide range of lifting devices and provide detailed instructions on how to safely operate them. By following the guidelines outlined in AFOSH Standard 91-46 and Specific Manuals, individuals can minimize the risk of accidents and injuries during lifting operations.

The AN/PSN-37 is the correct answer because it is a tester that is specifically used in the maintenance of AIM-7F missiles. The other options, such as the Galvanometer, 101-5BFG, and 4000 ITS, are not relevant to the maintenance of AIM-7F missiles.

The 101-5BFG is the correct answer because it is a stable precision instrument specifically designed for testing solid-fuel rocket motor igniter bridge wire circuitry. The other options, AMTEC 620, AN/PSM-6, and Galvonometer, do not have the same purpose or design as the 101-5BFG.

The AMTEC 620 tester is currently used to test circuits on the AIM-9, AIM-7, and AIM-120 missile systems.

The torque regulator reduces the possibility of shearing or damaging threads when installing nuts or bolts to the required tension. This means that it controls the amount of torque applied to ensure that it does not exceed the recommended limit, preventing any potential damage or breakage of the threads.

The correct answer is 100 megohms because an AN/PSM-37 can read resistance up to a maximum of 100 megohms. This indicates that the device is capable of measuring resistance values within this range, but not higher than that.