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US Vermont DMV CDL Air Brakes Test 7

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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
What is manual slack adjustment rule?
A) daily manual
B) never check
C) anyone adjusts
D) needs training; autos should not need it
Question 2
What is brake adjustment limit?
A) half foot
B) about 1 inch pushrod travel
C) 3 inches
D) no limit
Question 3
What are foundation brakes?
A) the wheel brake mechanisms
B) retarders
C) engine brakes
D) parking only
Question 4
What is an application pressure gauge?
A) fuel gauge
B) speedometer
C) shows service brake air used
D) oil gauge
Question 5
What are supply pressure gauges?
A) show tank air pressure
B) tire pressure
C) coolant
D) voltage
Question 6
What happens below 20-45 psi?
A) horn sounds
B) spring brakes fully apply
C) Nothing happens
D) faster stop
Question 7
How park with air brakes?
A) parking brake on, chock on grades
B) leave in neutral only
C) no brake needed
D) engine running
Question 8
What is fanning the brakes?
A) warming brakes
B) repeated apply-release (testing only)
C) driving technique
D) parking method
Question 9
What is stab braking (emergency)?
A) hard brake, release wheels, reapply
B) pump gently
C) use parking brake
D) lock wheels
Question 10
What is controlled braking?
A) firm pressure without locking
B) alternate pedals
C) lock all wheels
D) release fully
Question 11
How stop on slippery with ABS?
A) pump hard
B) firm steady, steer through
C) release all
D) lock wheels
Question 12
What is an alcohol evaporator for?
A) reduces winter moisture freeze
B) cleans tanks
C) adds power
D) heats cab
Question 13
How drain air tanks?
A) daily (manual) or auto valve check
B) never
C) yearly
D) only summer
Question 14
Why drain tanks?
A) looks
B) water/oil harms braking
C) noise
D) weight
Question 15
What is a dual air gauge reading?
A) tire temps
B) oil twice
C) primary and secondary tank pressures
D) fuel levels
Question 16
What if one system fails?
A) faster stop
B) nothing changes
C) other system still brakes (stop safely)
D) no brakes at all
Question 17
What are air lines colors?
A) green/yellow
B) no colors
C) both black
D) red emergency, blue service
Question 18
How connect glad hands?
A) seals clean, locked, no leaks
B) taped
C) any way
D) loose ok
Question 19
How test service brakes?
A) roll ~5 mph, brake firmly, check pull
B) ask others
C) highway test
D) no test
Question 20
What is stopping distance vs cars?
A) shorter
B) instant
C) same
D) much longer for trucks

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