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US North Carolina DMV CDL Air Brakes Test 4

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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 North Carolina: firm steady, steer through.
A) True
B) False
Question 2
True or false in North Carolina: reduces winter moisture freeze.
A) True
B) False
Question 3
True or false in North Carolina: daily (manual) or auto valve check.
A) True
B) False
Question 4
True or false in North Carolina: water/oil harms braking.
A) True
B) False
Question 5
True or false in North Carolina: primary and secondary tank pressures.
A) True
B) False
Question 6
True or false in North Carolina: other system still brakes (stop safely).
A) True
B) False
Question 7
True or false in North Carolina: red emergency, blue service.
A) True
B) False
Question 8
True or false in North Carolina: seals clean, locked, no leaks.
A) True
B) False
Question 9
True or false in North Carolina: roll ~5 mph, brake firmly, check pull.
A) True
B) False
Question 10
True or false in North Carolina: much longer for trucks.
A) True
B) False
Question 11
True or false in North Carolina: hydraulic fluid.
A) True
B) False
Question 12
True or false in North Carolina: 60 psi.
A) True
B) False
Question 13
True or false in North Carolina: 90 psi.
A) True
B) False
Question 14
True or false in North Carolina: 125 psi.
A) True
B) False
Question 15
True or false in North Carolina: service brakes.
A) True
B) False
Question 16
True or false in North Carolina: single only.
A) True
B) False
Question 17
True or false in North Carolina: drive at 50 psi.
A) True
B) False
Question 18
True or false in North Carolina: instant action.
A) True
B) False
Question 19
True or false in North Carolina: 10 psi.
A) True
B) False
Question 20
True or false in North Carolina: visual only.
A) True
B) False

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