|
Service line valve is closed.
|
|
|
Trailer hand brake is applied.
|
|
|
Emergency line valve is open.
|
California CDL Permit Test - Combination
(From the 2020 California CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 17 |
Directions:
All applicants who are applying for a Class A CDL should be prepared to take the Combination test. This test covers information found in Section 6 of the California Commercial Driver Handbook. Section 6 provides the information needed to safely operate tractor-trailers, doubles, triples, and straight trucks with trailers. The test is made up of 20 multiple-choice questions, and applicants will need to correctly answer a minimum of 17 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
Passing grade —
3 or fewer errors
advertising
1.
After completing a pre-trip inspection, you should ensure that the:
2.
How much space should be between the upper and lower fifth wheel?
|
About five inches of space
|
|
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A maximum of two inches of space
|
|
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No space
|
3.
A loss of air pressure in the emergency line will cause:
|
The suspension springs to extend.
|
|
|
The tractor protection valve to open.
|
|
|
The emergency brakes to activate.
|
4.
In a sudden turn, the ____ trailer is the most likely to turn over.
|
Front
|
|
|
Last
|
|
|
Middle
|
5.
When connecting a converter dolly to a second trailer, the trailer height should be ____ the center of the fifth wheel.
|
Level with
|
|
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Slightly higher than
|
|
|
Slightly lower than
|
6.
An air supply control lever should be in its "normal" position when you are:
|
Changing a tire.
|
|
|
Applying the trailer emergency brakes.
|
|
|
Pulling a trailer.
|
7.
All trailers made after ____ must be equipped with Anti-Lock Braking Systems (ABS).
|
1943
|
|
|
1998
|
|
|
2009
|
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