Question

Air tank drains:

Answers

Should not be used in cold weather.

Are helpful to remove water and oil from the air tanks.

Are used to move air to the brakes.

Explanation

Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.

This questions appears in the following tests:

Arizona Class A Knowledge Test

Arizona Class B Knowledge Test

Arizona Air Brakes

California Air Brakes

Delaware Class B Knowledge Test

Hawaii Double

Hawaii Air Brakes

Idaho Class A Knowledge Test

Iowa Air Brakes

Kentucky Class B Knowledge Test

Kentucky Air Brakes

Maine Air Brakes

Michigan Class A Knowledge Test

Michigan Air Brakes

Nevada Double

New Hampshire Air Brakes

New Mexico Class B Knowledge Test

New Mexico Air Brakes

Ohio Class A Knowledge Test

Oklahoma Air Brakes

Rhode Island Class B Knowledge Test

Rhode Island Double

South Dakota Class B Knowledge Test

South Dakota Air Brakes

Vermont Air Brakes

Wisconsin Air Brakes