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US Michigan DMV CDL Air Brakes Test 6

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content
DMV Michigan — Cdl Air Brakes DMV — Michigan (USA, State Traffic Law) USA — Michigan State DMV & FMCSA (MUTCD) — USA
What is this test? for Michigan DMV Cdl Air Brakes permit/CDL, USA (MUTCD) — DMV — Michigan (USA, State Traffic Law) level, USA — Michigan.
Is this for you? For driver candidates in Michigan, USA — Cdl Air Brakes permit/CDL (16+, State DMV)
Section: DMV Michigan — Cdl Air Brakes · Education: High School & Adult (16+) · Part: DMV Michigan — Cdl Air Brakes · Country: USA · Region: USA — Michigan

The DMV written test is an important step measuring driver candidates' knowledge of traffic laws, first aid, and vehicle technology.

This test reinforces your theoretical knowledge and provides the fundamentals needed to pass the exam and become a safe driver.

By solving this test of 20 questions, you can both test your knowledge and identify the topics you need to improve.

Question 1
True or false in Michigan: both black.
A) True
B) False
Question 2
True or false in Michigan: any way.
A) True
B) False
Question 3
True or false in Michigan: highway test.
A) True
B) False
Question 4
True or false in Michigan: shorter.
A) True
B) False
Question 5
Which is correct about CDL air brakes in Michigan?
A) springs only
B) hydraulic fluid
C) electricity
D) compressed air
Question 6
What powers air brakes?
A) compressed air
B) springs only
C) electricity
D) hydraulic fluid
Question 7
What is governor cut-in pressure?
A) 200 psi
B) about 100 psi (85-100 range)
C) 60 psi
D) 150 psi
Question 8
What is governor cut-out pressure?
A) 90 psi
B) 200 psi
C) 60 psi
D) about 125 psi (120-135 range)
Question 9
At what pressure does low-air warning activate?
A) 20 psi
B) 100 psi
C) at or before 60 psi (55-75 range)
D) 125 psi
Question 10
What are spring brakes?
A) no brakes
B) steering brakes
C) service brakes
D) emergency/parking brakes applying on air loss
Question 11
What is the dual air brake system?
A) steering only
B) two separate systems for safety
C) single only
D) no dual
Question 12
What must you do before driving after starting?
A) drive at 50 psi
B) build pressure 100-125 psi and test
C) mirrors only
D) no check
Question 13
What is brake lag in air brakes?
A) hydraulic only
B) delay between pedal and application
C) instant action
D) no lag
Question 14
What is the air loss limit (single vehicle)?
A) 1 psi per hour
B) no limit
C) no more than 3 psi per minute
D) 10 psi
Question 15
What is the air loss limit (combination)?
A) 10 psi
B) no limit
C) no more than 4 psi per minute
D) 3 psi per week
Question 16
How test air compressor?
A) build 85 to 100 psi within 45 seconds
B) honk test
C) visual only
D) no test
Question 17
How test the low-air warning?
A) drive fast
B) ignore it
C) fan brakes down, warning by 60 psi
D) disconnect buzzer
Question 18
How test spring brakes?
A) fan below 20-45 psi, parking knob pops
B) drive test
C) ask mechanic
D) no test
Question 19
What is a pre-trip air brake check order?
A) any order
B) no order
C) governor, warning, spring, leak, service
D) drive first
Question 20
What are slack adjusters?
A) link pushrod to brake cam
B) mirror arms
C) steering parts
D) fuel lines

About This Test

For Drivers 16+ & CDL (USA, 51 States × 9 Topics) — State DMV permit and CDL General, Air Brakes, Combination, HazMat and Tanker per MUTCD & FMCSA state law. Section: DMV & CDL, USA.

DMV & CDL USA — 51 States (incl. DC) × 9 topics = 4,400+ tests: Road Signs (MUTCD), Traffic Laws, First Aid, Vehicle Technique, Motorcycle, CDL General Knowledge, Air Brakes, Combination, HazMat. State traffic law + FMCSA. 8×20Q per state-topic.

DMV Forum: no toxic driving shaming; respect first — auto-moderation → (content hidden) for profanity/insults in topics & replies.

Study Tips:

  • Study your state manual first
  • Master signs before laws
  • Do motorcycle/CDL separately
  • Drive kind — Forum kind