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

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

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) compressed air

B) springs only

C) hydraulic fluid

D) electricity

Question 2

What is governor cut-in pressure?

A) 150 psi

B) about 100 psi (85-100 range)

C) 200 psi

D) 60 psi

Question 3

What is governor cut-out pressure?

A) 90 psi

B) 60 psi

C) 200 psi

D) about 125 psi (120-135 range)

Question 4

At what pressure does low-air warning activate?

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

B) 20 psi

C) 125 psi

D) 100 psi

Question 5

What are spring brakes?

A) emergency/parking brakes applying on air loss

B) service brakes

C) steering brakes

D) no brakes

Question 6

What is the dual air brake system?

A) no dual

B) two separate systems for safety

C) single only

D) steering only

Question 7

What must you do before driving after starting?

A) mirrors only

B) no check

C) build pressure 100-125 psi and test

D) drive at 50 psi

Question 8

What is brake lag in air brakes?

A) no lag

B) hydraulic only

C) delay between pedal and application

D) instant action

Question 9

What is the air loss limit (single vehicle)?

A) no more than 3 psi per minute

B) no limit

C) 1 psi per hour

D) 10 psi

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) disconnect buzzer

B) fan brakes down, warning by 60 psi

C) ignore it

D) drive fast

Question 13

How test spring brakes?

A) no test

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

C) ask mechanic

D) drive test

Question 14

What is a pre-trip air brake check order?

A) any order

B) governor, warning, spring, leak, service

C) no order

D) drive first

Question 15

What are slack adjusters?

A) link pushrod to brake cam

B) fuel lines

C) mirror arms

D) steering parts

Question 16

What is manual slack adjustment rule?

A) never check

B) anyone adjusts

C) needs training; autos should not need it

D) daily manual

Question 17

What is brake adjustment limit?

A) about 1 inch pushrod travel

B) 3 inches

C) no limit

D) half foot

Question 18

What are foundation brakes?

A) engine brakes

B) the wheel brake mechanisms

C) parking only

D) retarders

Question 19

What is an application pressure gauge?

A) fuel gauge

B) speedometer

C) shows service brake air used

D) oil gauge

Question 20

What are supply pressure gauges?

A) coolant

B) tire pressure

C) voltage

D) show tank air pressure

US Texas DMV CDL Air Brakes Test 8

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