CDL · Vehicle inspection
What is the proper way to check a vehicle's hydraulic brakes for a leak?
Correct answer: Pump the pedal three times, then hold it down firmly for five seconds; any pedal movement could mean a leak.
Answer options
- APress the pedal to the floor once and let go; a pedal that springs back to its usual position could mean a leak
- BPump the pedal three times, then hold it down firmly for five seconds; any pedal movement could mean a leak Correct
- CPress the pedal to the floor once and let go; any squeal from the brakes could mean a leak
Why
After pumping the pedal three times, hold firm, steady pressure on it for five seconds. A pedal that stays put means the system is in good shape, while one that slowly sinks points to a leak or some other fault.
About this question
Topic: Vehicle inspection License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Inspecting Your Vehicle (32 questions). Take the full set and check your score.
Practice Inspecting Your VehicleMore questions from Inspecting Your Vehicle
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