DMV Cartedefr · Texas · CDL · Combination Test 2

Texas cdl Combination - Test 2

Number of questions: 20

Passing score: 80%

Acceptable number of errors: 4

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 Texas Commercial Motor Vehicle Drivers 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 16 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.

To DMV Handbooks

1. What is a tractor protection valve?

A

A valve to keep air in the brake system should there be a bad leak

B ×

A valve that prevents the truck from being stolen

C ×

A valve that prevents the driver from going too fast

D ×

A valve that prevents the trailer from accidentally being released

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