California cdl Combination - Test 1
Number of questions: 20
Passing score: 85%
Acceptable number of errors: 3
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 California Commercial Driver 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 17 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
To DMV Handbooks1. A loss of air pressure in the emergency line will cause:
A
×
The suspension springs to extend.
B
×
The tractor protection valve to open.
C
√
The emergency brakes to activate.