US Ohio 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 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: both black.

A) True

B) False

Question 2

True or false in Ohio: any way.

A) True

B) False

Question 3

True or false in Ohio: highway test.

A) True

B) False

Question 4

True or false in Ohio: shorter.

A) True

B) False

Question 5

Which is correct about CDL air brakes in Ohio?

A) electricity

B) springs only

C) compressed air

D) hydraulic fluid

Question 6

What powers air brakes?

A) electricity

B) springs only

C) hydraulic fluid

D) compressed air

Question 7

What is governor cut-in pressure?

A) 60 psi

B) 200 psi

C) 150 psi

D) about 100 psi (85-100 range)

Question 8

What is governor cut-out pressure?

A) 60 psi

B) 200 psi

C) 90 psi

D) about 125 psi (120-135 range)

Question 9

At what pressure does low-air warning activate?

A) at or before 60 psi (55-75 range)

B) 100 psi

C) 20 psi

D) 125 psi

Question 10

What are spring brakes?

A) emergency/parking brakes applying on air loss

B) steering brakes

C) no brakes

D) service brakes

Question 11

What is the dual air brake system?

A) steering only

B) no dual

C) two separate systems for safety

D) single only

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) delay between pedal and application

B) no lag

C) hydraulic only

D) instant action

Question 14

What is the air loss limit (single vehicle)?

A) no more than 3 psi per minute

B) 1 psi per hour

C) no limit

D) 10 psi

Question 15

What is the air loss limit (combination)?

A) no more than 4 psi per minute

B) no limit

C) 3 psi per week

D) 10 psi

Question 16

How test air compressor?

A) honk test

B) no test

C) build 85 to 100 psi within 45 seconds

D) visual only

Question 17

How test the low-air warning?

A) fan brakes down, warning by 60 psi

B) ignore it

C) disconnect buzzer

D) drive fast

Question 18

How test spring brakes?

A) ask mechanic

B) fan below 20-45 psi, parking knob pops

C) no test

D) drive test

Question 19

What is a pre-trip air brake check order?

A) no order

B) any order

C) governor, warning, spring, leak, service

D) drive first

Question 20

What are slack adjusters?

A) mirror arms

B) steering parts

C) link pushrod to brake cam

D) fuel lines

US Ohio DMV CDL Air Brakes Test 6

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