To test the air leakage rate, one must turn off the engine (with a fully charged air system), turn the key to the “on” position, release the service brake, and ____.
time the air pressure drop
measure the amount of pressure in the system, then come back in about 30 minutes and measure the pressure again
time how long it takes for the air compressor governor to cut-in
measure the PSI as the air pressure gauge falls from its original amount
Already signed up? Sign in
Practice Test Downloads
Let's continue studying where you left off.