US Illinois DMV CDL Air Brakes Test 2

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

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

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

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

In Illinois, what happens below 20-45 psi?

A) horn sounds

B) spring brakes fully apply

C) faster stop

D) Nothing happens

Question 2

In Illinois, how park with air brakes?

A) parking brake on, chock on grades

B) engine running

C) leave in neutral only

D) no brake needed

Question 3

In Illinois, what is fanning the brakes?

A) repeated apply-release (testing only)

B) parking method

C) warming brakes

D) driving technique

Question 4

In Illinois, what is stab braking (emergency)?

A) lock wheels

B) use parking brake

C) hard brake, release wheels, reapply

D) pump gently

Question 5

In Illinois, what is controlled braking?

A) release fully

B) firm pressure without locking

C) lock all wheels

D) alternate pedals

Question 6

In Illinois, how stop on slippery with ABS?

A) firm steady, steer through

B) release all

C) lock wheels

D) pump hard

Question 7

In Illinois, what is an alcohol evaporator for?

A) cleans tanks

B) heats cab

C) adds power

D) reduces winter moisture freeze

Question 8

In Illinois, how drain air tanks?

A) only summer

B) daily (manual) or auto valve check

C) yearly

D) never

Question 9

In Illinois, why drain tanks?

A) looks

B) weight

C) water/oil harms braking

D) noise

Question 10

In Illinois, what is a dual air gauge reading?

A) primary and secondary tank pressures

B) tire temps

C) fuel levels

D) oil twice

Question 11

In Illinois, what if one system fails?

A) faster stop

B) other system still brakes (stop safely)

C) no brakes at all

D) nothing changes

Question 12

In Illinois, what are air lines colors?

A) green/yellow

B) both black

C) red emergency, blue service

D) no colors

Question 13

In Illinois, how connect glad hands?

A) any way

B) taped

C) loose ok

D) seals clean, locked, no leaks

Question 14

In Illinois, how test service brakes?

A) highway test

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

C) ask others

D) no test

Question 15

In Illinois, what is stopping distance vs cars?

A) shorter

B) much longer for trucks

C) instant

D) same

Question 16

True or false in Illinois: compressed air.

A) True

B) False

Question 17

True or false in Illinois: about 100 psi (85-100 range).

A) True

B) False

Question 18

True or false in Illinois: about 125 psi (120-135 range).

A) True

B) False

Question 19

True or false in Illinois: at or before 60 psi (55-75 range).

A) True

B) False

Question 20

True or false in Illinois: emergency/parking brakes applying on air loss.

A) True

B) False

US Illinois DMV CDL Air Brakes Test 2

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