22. Which of the following will not help prevent a rig from rolling over?
Driving on the shoulder of a road
Keeping the cargo as close to the ground as possible
Driving slowly around turns
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Combination #2
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 25 multiple-choice questions, and applicants will need to correctly answer a minimum of 20 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
✓
You Passed!
✕
You Failed!
Number of Questions
25
Passing Score
20
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To Pass
0
Correct
0
Incorrect
0
23. A tractor protection valve is:
A device that allows the battery to recharge efficiently.
A device that prevents theft.
A device that keeps air in the tractor or truck brake system, should the trailer break away or develop a bad leak.
A device that controls fuel levels.
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24. The trailer hand valve:
Should only be used when transporting cargo.
Should never be used for parking.
Should only be used for parking on a downhill.
Should always be used for parking.
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