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.
Number of Questions
25
Passing Score
20
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To Pass
0
Correct
0
Incorrect
0
17. When coupling a trailer:
Only one set of glad hands should be connected.
It is best to leave one glad hand unattached.
Make sure to couple matching glad hands.
Any glad hand can be connected to any other glad hand.
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18. When driving a tractor-trailer equipped with ABS, you should:
Use extra braking force to ensure the ABS kicks in.
Stop harder than you would otherwise.
Brake using less pressure than you would otherwise use.
Brake as you normally would.
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20. A loss of air pressure in the emergency line will cause:
The rear trailer to detach from the combination.
The tractor protection valve to open.
The emergency brakes to activate.
The suspension springs to extend.
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21. When entering or crossing traffic while driving a combination vehicle, it is especially important that you:
Make sure there is a large enough gap for your vehicle.
Expect other drivers to make room for your vehicle.
Let other drivers wave you into their lane.
Sound your horn.
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