|
Activate the emergency brakes.
|
|
|
Deactivate the air brakes.
|
|
|
Sound the horn.
|
|
|
Supply the trailer with air.
|
New Jersey CDL Permit Test - Combination
(From the 2020 New Jersey CDL driver handbook)
| Number of questions: | 20 |
| Passing score: | 16 |
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 Commercial Driver License Manual. 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 16 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
Passing grade —
4 or fewer errors
advertising
1.
Push in the trailer air supply control to:
2.
What is another name for the service line?
|
The signal line
|
|
|
The cable line
|
|
|
The surplus line
|
|
|
The power line
|
3.
Glad hands are:
|
Coupling devices.
|
|
|
Happy passengers.
|
|
|
Eager mechanics.
|
|
|
Pleased drivers.
|
4.
To lower the risk of a rollover, you should:
|
Load the cargo as far forward as possible.
|
|
|
Load the cargo as far back as possible.
|
|
|
Load the cargo as low as possible.
|
|
|
Stack the cargo as high as possible.
|
5.
What does the trailer air supply control look like?
|
It is a square blue knob.
|
|
|
It is a triangular yellow knob.
|
|
|
It is an eight-sided red knob.
|
|
|
It is a circular orange knob.
|
6.
When uncoupling a trailer, landing gear should be:
|
Raised completely.
|
|
|
Lowered halfway.
|
|
|
Just off the pavement.
|
|
|
Firmly on the ground.
|
7.
Driving a combination vehicle ____ than driving a single vehicle.
|
Is easier
|
|
|
Requires more driving skill
|
|
|
Is better for training
|
|
|
Is safer in inclement weather
|
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