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US Hawaii DMV CDL Air Brakes Test 1

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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 Hawaii, what powers air brakes?
A) springs only
B) electricity
C) hydraulic fluid
D) compressed air
Question 2
In Hawaii, what is governor cut-in pressure?
A) 200 psi
B) about 100 psi (85-100 range)
C) 60 psi
D) 150 psi
Question 3
In Hawaii, what is governor cut-out pressure?
A) 200 psi
B) 90 psi
C) 60 psi
D) about 125 psi (120-135 range)
Question 4
In Hawaii, at what pressure does low-air warning activate?
A) 125 psi
B) 100 psi
C) 20 psi
D) at or before 60 psi (55-75 range)
Question 5
In Hawaii, what are spring brakes?
A) no brakes
B) service brakes
C) emergency/parking brakes applying on air loss
D) steering brakes
Question 6
In Hawaii, what is the dual air brake system?
A) two separate systems for safety
B) no dual
C) single only
D) steering only
Question 7
In Hawaii, what must you do before driving after starting?
A) mirrors only
B) no check
C) drive at 50 psi
D) build pressure 100-125 psi and test
Question 8
In Hawaii, what is brake lag in air brakes?
A) no lag
B) hydraulic only
C) delay between pedal and application
D) instant action
Question 9
In Hawaii, what is the air loss limit (single vehicle)?
A) 1 psi per hour
B) no limit
C) 10 psi
D) no more than 3 psi per minute
Question 10
In Hawaii, 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
In Hawaii, how test air compressor?
A) honk test
B) build 85 to 100 psi within 45 seconds
C) visual only
D) no test
Question 12
In Hawaii, how test the low-air warning?
A) ignore it
B) drive fast
C) fan brakes down, warning by 60 psi
D) disconnect buzzer
Question 13
In Hawaii, how test spring brakes?
A) ask mechanic
B) no test
C) fan below 20-45 psi, parking knob pops
D) drive test
Question 14
In Hawaii, what is a pre-trip air brake check order?
A) any order
B) governor, warning, spring, leak, service
C) drive first
D) no order
Question 15
In Hawaii, what are slack adjusters?
A) fuel lines
B) mirror arms
C) link pushrod to brake cam
D) steering parts
Question 16
In Hawaii, what is manual slack adjustment rule?
A) never check
B) needs training; autos should not need it
C) daily manual
D) anyone adjusts
Question 17
In Hawaii, what is brake adjustment limit?
A) no limit
B) 3 inches
C) about 1 inch pushrod travel
D) half foot
Question 18
In Hawaii, what are foundation brakes?
A) the wheel brake mechanisms
B) engine brakes
C) parking only
D) retarders
Question 19
In Hawaii, what is an application pressure gauge?
A) oil gauge
B) shows service brake air used
C) fuel gauge
D) speedometer
Question 20
In Hawaii, what are supply pressure gauges?
A) voltage
B) tire pressure
C) show tank air pressure
D) coolant

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