What is the maximum allowable air pressure loss for a straight truck during a static leak test?

Air Brake System Leak Test Quiz

Quiz
•
Physics
•
University
•
Medium

Noah Vickers
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3 psi in one minute
2 psi in one minute
4 psi in one minute
1 psi in one minute
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Before performing a leak-down test, what should you do first?
Turn on the headlights
Build full air pressure (governor cut-out)
Check oil levels
Engage the trailer hand valve
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: The engine must be running during the leak down test.
True
False
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a static leak test, which brakes must be released?
Only trailer brakes
Only tractor brakes
Both service and parking brakes
All brakes must be released
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which tool is commonly used to monitor air pressure during the leak test?
Air compressor
Pressure regulator
Air pressure gauge
Manometer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long should you observe the air pressure gauge during the static leak test?
30 seconds
1 minute
3 minutes
Until the warning buzzer sounds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what air pressure should the low air pressure warning activate in most vehicles?
above 90 psi
at 80 psi
at 60 psi
above 55 psi
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