Question

If the air compressor governor failed to cut out, which of the following would result?

a)The regulator valve would stop the compressor
b)The system safety valve would open
c)The compressor's performance would not be affected
d)The dash gauges would indicate normal governor cut-out pressure

Answer 1

When the air compressor governor fails to cut out, the system safety valve opens to prevent over-pressurization and protect the air brake system.

Step-by-step explanation:

If the air compressor governor failed to cut out, the result would be that the system safety valve would open. The purpose of the air compressor governor is to maintain the air pressure within the correct operating range for the vehicle's air brake system. Normally, the governor controls when the air compressor starts and stops producing air, referred to as "cutting in" and "cutting out."

If it fails to cut out, the air compressor will continue to build pressure beyond the intended limit. Eventually, this will lead to the activation of the safety valve, which acts as a failsafe to prevent over-pressurization and potential system damage or failure. The safety valve releases excess air pressure, ensuring that the pressure in the system does not become too high. Therefore, the correct answer to the question is b) The system safety valve would open.