Pennsylvania cdl Double - Test 2
Number of questions: 20
Passing score: 80%
Acceptable number of errors: 4
This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Commonwealth of Pennsylvania Commercial Driver’s Manual. Questions come from chapter covering: Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
To DMV Handbooks1. A loss of air pressure in the emergency line will cause:
A
×
The service brakes to activate.
B
√
The tractor protection valve to close.
C
×
The rear trailer to detach from the combination.
D
×
The suspension springs to extend.