Home

  • MI Car Tests
  • MI Motorcycle Tests
  • MI CDL Tests
  • MI Driver Manuals

Michigan CDL Practice Test: Double and Triples - Test 3 2019

(From the 2019 Michigan CDL Handbook)
Number of tests: 26
Number of questions: 30
Passing score: 80

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 Michigan 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 Michigan DMV locations.

You have made error(s) so far.
Your Challenge Library: 0

1. What are hose couplers?

2. Trailers that do not have spring brakes have emergency brakes, which work from ________.

3. The spring brakes come on when the air pressure drops into what range _________.

4. The pressure in the service line indicates ______.

5. Usually, a fully charged air system has _______ psi.

6. The tractor protection valve ______.

Your Progress

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

RATE THIS TEST


4.6 OUT OF 5.0
BASED ON 457 VOTES