Question

A wig wag is:

Answers

A low pressure warning device.

A tube that carries air to the brakes.

A type of air brake system.

Explanation

Vehicles with air brakes are required to be equipped with a low pressure warning device. A wig wag is a type of low air pressure warning device. This device drops a mechanical arm into the driver's view if the pressure in the tanks drops to a level between 55 and 75 psi.

This questions appears in the following tests:

Alaska Class A Knowledge Test

Arizona Air Brakes

California Class B Knowledge Test

Delaware Air Brakes

Hawaii Class B Knowledge Test

Maine Class A Knowledge Test

Rhode Island Air Brakes

South Dakota Class A Knowledge Test

South Dakota Class B Knowledge Test

Washington Class A Knowledge Test

Washington Air Brakes