Practice test

CDL Practice Exam 11

Intermediate CDL practice exam 11 on combination vehicle braking, trailer sway, and mountain driving technique. 25 timed questions.

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These questions are for study practice only and are not official exam questions.

Question 1

1

In a dual air brake system, if the secondary (rear) tank pressure drops due to a leak, what protects the driver's ability to stop?

Question 2

2

Why do all newer heavy vehicles use front wheel brakes in addition to rear brakes?

Question 3

3

A driver notices the low air pressure warning activates around 60 psi rather than the more typical range. What should the driver conclude?

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