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US Connecticut DMV CDL Combination Vehicles Test 8

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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 a combination vehicle?
A) van
B) bus
C) single truck
D) tractor plus trailer(s)
Question 2
What is a converter dolly?
A) a spare tire
B) a light
C) device coupling doubles
D) a tool box
Question 3
How couple doubles?
A) rear trailer, dolly, front trailer in order
B) no order
C) front first always
D) any order
Question 4
What is the crack-the-whip effect?
A) brake lock
B) tire pop
C) engine surge
D) rear trailer swings in turns
Question 5
How prevent rollover in combos?
A) no need
B) slow well below curve speed
C) brake in curve
D) speed through
Question 6
What is off-tracking in combos?
A) speeding
B) brake wear
C) rear follows shorter path
D) tire brand
Question 7
How check coupling?
A) fifth-wheel jaws locked, no gap
B) radio test
C) tire shine
D) paint check
Question 8
What is trailer hand valve for?
A) testing trailer brakes only
B) fueling
C) parking
D) lights
Question 9
How test trailer emergency brakes?
A) no test
B) drive fast
C) charge, pull supply, tug test
D) visual only
Question 10
What is a shut-off valve for?
A) controls air to rear in doubles
B) lights
C) fuel flow
D) horn
Question 11
How many valves on last trailer?
A) all open
B) none open (all closed)
C) one open
D) half open
Question 12
What is the air line order?
A) drive then connect
B) one line enough
C) no lines
D) connect service+emergency before moving
Question 13
How inspect pintle hook?
A) loose ok
B) no chains
C) rust fine
D) latched, safety chains crossed
Question 14
What are safety chains for?
A) looks
B) noise
C) backup coupling if hook fails
D) weight
Question 15
How brake with empty trailers?
A) gentler (light trailers lock easily)
B) harder
C) no brakes
D) same
Question 16
What is trailers jackknifing?
A) tractor-trailer folds in skid
B) parking trick
C) coupling step
D) turning wide
Question 17
How avoid jackknife?
A) steady braking, no sudden moves
B) speed up
C) jerk wheel
D) slam brakes
Question 18
How handle doubles in wind?
A) ignore
B) slow, extra space, firm grip
C) speed up
D) stop in lane
Question 19
What is rearward amplification?
A) engine power
B) fuel use
C) last trailer moves most
D) brake force
Question 20
How lane change with doubles?
A) no signal
B) tailgate first
C) slower, more space, signal long
D) quick swerve

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