US Oklahoma 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 Oklahoma — Cdl Air Brakes DMV — Oklahoma (USA, State Traffic Law) USA — Oklahoma State DMV & FMCSA (MUTCD) — USA

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

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) no limit

B) 3 inches

C) about 1 inch pushrod travel

D) half foot

Question 3

What are foundation brakes?

A) engine brakes

B) parking only

C) the wheel brake mechanisms

D) retarders

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) voltage

B) show tank air pressure

C) coolant

D) tire pressure

Question 6

What happens below 20-45 psi?

A) Nothing happens

B) spring brakes fully apply

C) horn sounds

D) faster stop

Question 7

How park with air brakes?

A) leave in neutral only

B) no brake needed

C) engine running

D) parking brake on, chock on grades

Question 8

What is fanning the brakes?

A) repeated apply-release (testing only)

B) warming brakes

C) driving technique

D) parking method

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) lock all wheels

B) release fully

C) firm pressure without locking

D) alternate pedals

Question 11

How stop on slippery with ABS?

A) release all

B) firm steady, steer through

C) lock wheels

D) pump hard

Question 12

What is an alcohol evaporator for?

A) cleans tanks

B) heats cab

C) adds power

D) reduces winter moisture freeze

Question 13

How drain air tanks?

A) daily (manual) or auto valve check

B) only summer

C) yearly

D) never

Question 14

Why drain tanks?

A) water/oil harms braking

B) looks

C) noise

D) weight

Question 15

What is a dual air gauge reading?

A) primary and secondary tank pressures

B) fuel levels

C) oil twice

D) tire temps

Question 16

What if one system fails?

A) no brakes at all

B) other system still brakes (stop safely)

C) nothing changes

D) faster stop

Question 17

What are air lines colors?

A) no colors

B) green/yellow

C) red emergency, blue service

D) both black

Question 18

How connect glad hands?

A) seals clean, locked, no leaks

B) loose ok

C) any way

D) taped

Question 19

How test service brakes?

A) ask others

B) roll ~5 mph, brake firmly, check pull

C) highway test

D) no test

Question 20

What is stopping distance vs cars?

A) much longer for trucks

B) instant

C) shorter

D) same

US Oklahoma DMV CDL Air Brakes Test 7

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