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

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

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