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

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