US New Jersey DMV CDL Air Brakes Test 8

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

DMV New Jersey — Cdl Air Brakes DMV — New Jersey (USA, State Traffic Law) USA — New Jersey State DMV & FMCSA (MUTCD) — USA

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

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 powers air brakes?

A) hydraulic fluid

B) electricity

C) springs only

D) compressed air

Question 2

What is governor cut-in pressure?

A) 150 psi

B) 200 psi

C) 60 psi

D) about 100 psi (85-100 range)

Question 3

What is governor cut-out pressure?

A) about 125 psi (120-135 range)

B) 60 psi

C) 90 psi

D) 200 psi

Question 4

At what pressure does low-air warning activate?

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

B) 125 psi

C) 20 psi

D) 100 psi

Question 5

What are spring brakes?

A) service brakes

B) no brakes

C) steering brakes

D) emergency/parking brakes applying on air loss

Question 6

What is the dual air brake system?

A) single only

B) two separate systems for safety

C) no dual

D) steering only

Question 7

What must you do before driving after starting?

A) build pressure 100-125 psi and test

B) drive at 50 psi

C) no check

D) mirrors only

Question 8

What is brake lag in air brakes?

A) hydraulic only

B) instant action

C) delay between pedal and application

D) no lag

Question 9

What is the air loss limit (single vehicle)?

A) no limit

B) 1 psi per hour

C) 10 psi

D) no more than 3 psi per minute

Question 10

What is the air loss limit (combination)?

A) 3 psi per week

B) no more than 4 psi per minute

C) no limit

D) 10 psi

Question 11

How test air compressor?

A) visual only

B) honk test

C) no test

D) build 85 to 100 psi within 45 seconds

Question 12

How test the low-air warning?

A) ignore it

B) disconnect buzzer

C) fan brakes down, warning by 60 psi

D) drive fast

Question 13

How test spring brakes?

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

B) ask mechanic

C) no test

D) drive test

Question 14

What is a pre-trip air brake check order?

A) drive first

B) governor, warning, spring, leak, service

C) no order

D) any order

Question 15

What are slack adjusters?

A) steering parts

B) mirror arms

C) link pushrod to brake cam

D) fuel lines

Question 16

What is manual slack adjustment rule?

A) daily manual

B) needs training; autos should not need it

C) never check

D) anyone adjusts

Question 17

What is brake adjustment limit?

A) half foot

B) no limit

C) about 1 inch pushrod travel

D) 3 inches

Question 18

What are foundation brakes?

A) engine brakes

B) retarders

C) parking only

D) the wheel brake mechanisms

Question 19

What is an application pressure gauge?

A) oil gauge

B) fuel gauge

C) shows service brake air used

D) speedometer

Question 20

What are supply pressure gauges?

A) show tank air pressure

B) tire pressure

C) voltage

D) coolant

US New Jersey DMV CDL Air Brakes Test 8

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