Should the brake-door interlock replace the parking brake?

a.Yes, it is a more modern and reliable system

b.No, never let the interlock replace the parking brake

c.Yes, if the interlock is functioning properly

d.Only if the bus is on level ground

Explanation

The brake-door interlock should never be used as a substitute for the parking brake. Always set the parking brake when the bus is parked or when loading and unloading passengers.

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About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

This question is from the Passenger Endorsement Test #1 section. Practice with more questions from this category to build confidence before taking the official DMV test.

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