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

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

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 Washington: both black.

A) True

B) False

Question 2

True or false in Washington: any way.

A) True

B) False

Question 3

True or false in Washington: highway test.

A) True

B) False

Question 4

True or false in Washington: shorter.

A) True

B) False

Question 5

Which is correct about CDL air brakes in Washington?

A) springs only

B) electricity

C) compressed air

D) hydraulic fluid

Question 6

What powers air brakes?

A) electricity

B) compressed air

C) hydraulic fluid

D) springs only

Question 7

What is governor cut-in pressure?

A) 60 psi

B) about 100 psi (85-100 range)

C) 150 psi

D) 200 psi

Question 8

What is governor cut-out pressure?

A) 200 psi

B) 60 psi

C) about 125 psi (120-135 range)

D) 90 psi

Question 9

At what pressure does low-air warning activate?

A) 100 psi

B) 20 psi

C) 125 psi

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

Question 10

What are spring brakes?

A) service brakes

B) emergency/parking brakes applying on air loss

C) no brakes

D) steering brakes

Question 11

What is the dual air brake system?

A) single only

B) steering only

C) two separate systems for safety

D) no dual

Question 12

What must you do before driving after starting?

A) drive at 50 psi

B) no check

C) mirrors only

D) build pressure 100-125 psi and test

Question 13

What is brake lag in air brakes?

A) delay between pedal and application

B) hydraulic only

C) no lag

D) instant action

Question 14

What is the air loss limit (single vehicle)?

A) 1 psi per hour

B) 10 psi

C) no limit

D) no more than 3 psi per minute

Question 15

What is the air loss limit (combination)?

A) 10 psi

B) no limit

C) 3 psi per week

D) no more than 4 psi per minute

Question 16

How test air compressor?

A) visual only

B) no test

C) honk test

D) build 85 to 100 psi within 45 seconds

Question 17

How test the low-air warning?

A) fan brakes down, warning by 60 psi

B) disconnect buzzer

C) drive fast

D) ignore it

Question 18

How test spring brakes?

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

B) ask mechanic

C) no test

D) drive test

Question 19

What is a pre-trip air brake check order?

A) no order

B) governor, warning, spring, leak, service

C) any order

D) drive first

Question 20

What are slack adjusters?

A) mirror arms

B) fuel lines

C) steering parts

D) link pushrod to brake cam

US Washington DMV CDL Air Brakes Test 6

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