Arizona CDL Knowledge Test Class B: Practice Test - Practice Test 2
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Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
A.
Stop the compressor from pumping air.
B.
Release air from the tanks.
C.
Begin pumping air into the tanks.
What can happen if the exhaust system is not working properly?
A.
Poisonous fumes may enter the cab.
B.
Fumes may exit the rear of the muffler system.
C.
Proper steering may be impossible.
Alcohol evaporators are:
A.
Illegal.
B.
Used to introduce alcohol into air brake systems.
C.
Only allowed in the northern parts of the state.
If you identify a distracted driver on the road, you should:
A.
Tailgate them.
B.
Flash your lights at them.
C.
Give them plenty of space.
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