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

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

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) never check

B) daily manual

C) needs training; autos should not need it

D) anyone adjusts

Question 2

What is brake adjustment limit?

A) half foot

B) 3 inches

C) about 1 inch pushrod travel

D) no limit

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) shows service brake air used

C) fuel gauge

D) oil gauge

Question 5

What are supply pressure gauges?

A) coolant

B) show tank air pressure

C) tire pressure

D) voltage

Question 6

What happens below 20-45 psi?

A) faster stop

B) Nothing happens

C) horn sounds

D) spring brakes fully apply

Question 7

How park with air brakes?

A) engine running

B) parking brake on, chock on grades

C) leave in neutral only

D) no brake needed

Question 8

What is fanning the brakes?

A) warming brakes

B) repeated apply-release (testing only)

C) parking method

D) driving technique

Question 9

What is stab braking (emergency)?

A) lock wheels

B) hard brake, release wheels, reapply

C) pump gently

D) use parking brake

Question 10

What is controlled braking?

A) alternate pedals

B) firm pressure without locking

C) lock all wheels

D) release fully

Question 11

How stop on slippery with ABS?

A) release all

B) pump hard

C) lock wheels

D) firm steady, steer through

Question 12

What is an alcohol evaporator for?

A) cleans tanks

B) heats cab

C) reduces winter moisture freeze

D) adds power

Question 13

How drain air tanks?

A) yearly

B) never

C) daily (manual) or auto valve check

D) only summer

Question 14

Why drain tanks?

A) looks

B) weight

C) noise

D) water/oil harms braking

Question 15

What is a dual air gauge reading?

A) fuel levels

B) tire temps

C) primary and secondary tank pressures

D) oil twice

Question 16

What if one system fails?

A) faster stop

B) other system still brakes (stop safely)

C) nothing changes

D) no brakes at all

Question 17

What are air lines colors?

A) both black

B) green/yellow

C) no colors

D) red emergency, blue service

Question 18

How connect glad hands?

A) taped

B) any way

C) loose ok

D) seals clean, locked, no leaks

Question 19

How test service brakes?

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

B) no test

C) highway test

D) ask others

Question 20

What is stopping distance vs cars?

A) much longer for trucks

B) same

C) instant

D) shorter

US Massachusetts DMV CDL Air Brakes Test 7

Test Complete

About This Test