Question 1

Using compressed air and a blow gun, what is the maximum allowable air pressure?

Accepted Answer

The maximum allowable air pressure for using compressed air and a blow gun for cleaning purposes is generally 30 psi. This is to ensure safety and prevent injury from high-pressure air.

Question 2

Which air impact drive size is the most commonly used?

Accepted Answer

The 1/2 inch drive size is the most commonly used for air impact wrenches due to its versatility in handling a wide range of tasks from automotive repair to construction projects.

Question 3

What type of socket should be used with an air impact wrench?

Accepted Answer

Black sockets are specifically designed to be used with air impact wrenches because they are made from a more durable material that can withstand the high torque levels without cracking or breaking, unlike chrome sockets which are more likely to shatter under the same conditions.

Question 4

What can be used to cover the jaws of a vise to help protect the object being held?

Accepted Answer

All of these materials can be used to cover the jaws of a vise to protect the object being held from damage.

Question 5

Technician A says that impact sockets have thicker walls than conventional sockets. Technician B says that impact sockets have a black oxide finish. Which technician is correct?

Accepted Answer

Both statements are correct. Impact sockets do have thicker walls to withstand the high torque of impact tools, and they typically have a black oxide finish to resist corrosion.

Question 6

Two technicians are discussing the use of a typical bench/pedestal mounted grinder. Technician A says that a wire brush wheel can be used to clean threads. Technician B says that the grinding stone can be used to clean threads. Which technician is correct?

Accepted Answer

Technician A is correct because a wire brush wheel on a bench or pedestal mounted grinder is suitable for cleaning threads without removing significant material, whereas using a grinding stone as suggested by Technician B could damage the threads by removing too much material or altering their shape.

Question 7

A hydraulic press is being used to separate a bearing from a shaft. What should be used to cover the bearing during the pressing operation?

Accepted Answer

The answer of A hydraulic press is being used to...

Question 8

Which type of trouble light is recommended for use in the shop?

Accepted Answer

LED and Fluorescent lights are recommended for use in the shop because they are energy-efficient, produce less heat, and have a longer lifespan compared to incandescent lights.

Question 9

When mounting an engine to an engine stand, what grade bolt should be used?

Accepted Answer

When mounting an engine to an engine stand, it is crucial to use bolts that can handle the weight and stress involved. Grade 5 or 8 bolts are recommended because they offer the strength and durability needed for securely attaching an engine to a stand. Grade 5 bolts are strong and commonly used for automotive applications, while Grade 8 bolts offer even higher strength and are used in applications where maximum strength is required.

Question 10

Proper care of shop equipment includes ________.

Accepted Answer

Keeping equipment clean and properly lubricated are essential aspects of proper care for shop equipment. Regular cleaning prevents buildup of materials that can cause damage or inefficiency, and lubrication ensures moving parts operate smoothly and reduces wear. Tuning up every 6 months might be beneficial for some equipment, but it is not a universal requirement for all shop equipment, making options B and C together the correct answer.

Question 11

Technician A changes air compressor oil as part of routine maintenance. Technician B purges water out of air compressor tanks as part of routine maintenance. Which technician is correct?

Accepted Answer

Both changing air compressor oil and purging water from air compressor tanks are essential parts of routine maintenance. Changing oil ensures the compressor runs smoothly, while purging water prevents rust and damage to the tank.

Question 12

Impact wrenches should be used with ________.

Accepted Answer

Impact wrenches are designed to be used with impact sockets due to their ability to withstand the high torque levels without cracking, unlike chrome sockets which can shatter under the same conditions.

Question 13

Which tool is used where there is NOT enough room to move a regular wrench?

Accepted Answer

An air ratchet is designed for use in tight spaces where a regular wrench cannot be maneuvered easily.

Question 14

Which air tool is used to remove rust or gaskets?

Accepted Answer

Die grinders are versatile tools that can be used to remove rust, gaskets, and other materials from surfaces, especially in tight spaces or for precision work.

Question 15

Most air-operated grease guns operate with how much air pressure?

Accepted Answer

Most air-operated grease guns typically operate at around 90 psi, which is a standard pressure for many pneumatic tools.

Question 16

Technician A says that air-operated grease guns are more expensive than battery operated grease guns.Technician B says that battery operated grease guns also require a supply of compressed air. Which technician is correct?

Accepted Answer

Battery operated grease guns do not require a supply of compressed air, and air-operated grease guns are not necessarily more expensive than battery-operated ones.

Question 17

Technician A says that incandescent lights may be used when working around gasoline. Technician B says that florescent lights should be used when working around gasoline. Which technician is correct?

Accepted Answer

Fluorescent lights are safer to use around gasoline because they produce less heat and are less likely to ignite flammable vapors compared to incandescent lights.

Question 18

What type light may be used in more difficult to access areas?

Accepted Answer

LED lights are often used in difficult to access areas due to their long lifespan and low maintenance requirements, reducing the need for frequent replacements or checks.

Question 19

Technician A says that face shields should always be worn when using a bench grinder. Technician B says that face shields are not required if the bench grinder has built-in shields. Which technician is correct?

Accepted Answer

Technician A is correct because personal protective equipment like face shields should always be worn for additional safety, even if the bench grinder has built-in shields, to protect against flying debris or particles.

Question 20

The steel wire wheel on a bench grinder can be used to clean ________.

Accepted Answer

Steel wire wheels are typically used to clean rust, paint, and other debris from metal surfaces, including the threads of bolts. However, they are not recommended for aluminum surfaces as they can cause damage.

Quiz 10: Power Tools and Shop Equipment