Logo TestGru USA
Home Categories Forum Login Support
This test is for educational purposes only. Our platform is not operated by the College Board, DMV, or any official government agency. For official exam information, visit the relevant agency websites.

US Illinois DMV CDL Air Brakes Test 3

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
True or false in Illinois: two separate systems for safety.
A) True
B) False
Question 2
True or false in Illinois: build pressure 100-125 psi and test.
A) True
B) False
Question 3
True or false in Illinois: delay between pedal and application.
A) True
B) False
Question 4
True or false in Illinois: no more than 3 psi per minute.
A) True
B) False
Question 5
True or false in Illinois: no more than 4 psi per minute.
A) True
B) False
Question 6
True or false in Illinois: build 85 to 100 psi within 45 seconds.
A) True
B) False
Question 7
True or false in Illinois: fan brakes down, warning by 60 psi.
A) True
B) False
Question 8
True or false in Illinois: fan below 20-45 psi, parking knob pops.
A) True
B) False
Question 9
True or false in Illinois: governor, warning, spring, leak, service.
A) True
B) False
Question 10
True or false in Illinois: link pushrod to brake cam.
A) True
B) False
Question 11
True or false in Illinois: needs training; autos should not need it.
A) True
B) False
Question 12
True or false in Illinois: about 1 inch pushrod travel.
A) True
B) False
Question 13
True or false in Illinois: the wheel brake mechanisms.
A) True
B) False
Question 14
True or false in Illinois: shows service brake air used.
A) True
B) False
Question 15
True or false in Illinois: show tank air pressure.
A) True
B) False
Question 16
True or false in Illinois: spring brakes fully apply.
A) True
B) False
Question 17
True or false in Illinois: parking brake on, chock on grades.
A) True
B) False
Question 18
True or false in Illinois: repeated apply-release (testing only).
A) True
B) False
Question 19
True or false in Illinois: hard brake, release wheels, reapply.
A) True
B) False
Question 20
True or false in Illinois: firm pressure without locking.
A) True
B) False

About This Test

For Drivers 16+ & CDL (USA, 51 States × 9 Topics) — State DMV permit and CDL General, Air Brakes, Combination, HazMat and Tanker per MUTCD & FMCSA state law. Section: DMV & CDL, USA.

DMV & CDL USA — 51 States (incl. DC) × 9 topics = 4,400+ tests: Road Signs (MUTCD), Traffic Laws, First Aid, Vehicle Technique, Motorcycle, CDL General Knowledge, Air Brakes, Combination, HazMat. State traffic law + FMCSA. 8×20Q per state-topic.

DMV Forum: no toxic driving shaming; respect first — auto-moderation → (content hidden) for profanity/insults in topics & replies.

Study Tips:

  • Study your state manual first
  • Master signs before laws
  • Do motorcycle/CDL separately
  • Drive kind — Forum kind