Virginia CDL Practice Test: Double and Triples - Test 3 2020

From the 2020 VA CDL Handbook
Number of questions: 30
Passing score: 80%
Acceptable number of errors: 6

Directions: To obtain this endorsement for pulling two or three trailers, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the Virginia Commercial Driver Handbook. The Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Virginia DMV locations.

1. Usually, a fully charged air system has _______ psi.
A
When the road is wet or slippery
B
All of the above
C
On narrow or winding roads
D
At intersections or railroad crossings
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