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Should always be used for parking.
|
|
|
Should only be used for parking on a downhill.
|
|
|
Should never be used for parking.
|
|
|
Should only be used when transporting cargo.
|
Wisconsin CDL Permit Test - Combination
(From the 2021 Wisconsin 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 Wisconsin Commercial Driver's 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.
The trailer hand valve:
2.
Starting in which year were newly manufactured trailers required to have ABS?
|
1972
|
|
|
1987
|
|
|
1998
|
|
|
2004
|
3.
To test the trailer service brakes, you should:
|
Move the vehicle forward slowly and apply the brakes with the brake pedal.
|
|
|
Reverse the vehicle slowly and apply the brakes with the hand control.
|
|
|
Reverse the vehicle slowly and apply the brakes with the brake pedal.
|
|
|
Move the vehicle forward slowly and apply the brakes with the hand control.
|
4.
When driving a bobtail tractor, you should be aware that:
|
Bobtails stop very easily.
|
|
|
Bobtails cannot drive as fast as tractors with semitrailers.
|
|
|
Bobtails are more difficult to stop than tractors with semitrailers.
|
|
|
Bobtails are illegal in most states.
|
5.
Using the trailer hand valve while driving:
|
Will help you turn safely.
|
|
|
Will stop your trailer safely.
|
|
|
Can cause a skid.
|
|
|
Is impossible.
|
6.
Before a drive, ensure that air flows to all trailers by:
|
Opening the rear shut-off valves and listening for escaping air.
|
|
|
Closing the rear shut-off valves and listening for escaping air.
|
|
|
Disconnecting air supply lines and listening for escaping air.
|
|
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Rolling each trailer down a hill and testing the brakes.
|
7.
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.
|
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