Class B CDL Practice Test #2
Question #1 of 66
What is the purpose of the air compressor governor?
The governor controls when the air compressor will pump air into the air storage tanks.
The governor controls when the air compressor will pump air into the brake pads cabin of the tractor.
The governor controls when the air compressor will pump air into the brake pads.
The governor controls when the air compressor will pump air into the brake safety valves.
 
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