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US Connecticut DMV CDL Combination Vehicles Test 6

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
True or false in Connecticut: one type.
A) True
B) False
Question 2
True or false in Connecticut: visual only.
A) True
B) False
Question 3
True or false in Connecticut: fuel valve.
A) True
B) False
Question 4
True or false in Connecticut: with doubles.
A) True
B) False
Question 5
Which is correct about CDL combination vehicles in Connecticut?
A) van
B) tractor plus trailer(s)
C) bus
D) single truck
Question 6
What is a combination vehicle?
A) bus
B) tractor plus trailer(s)
C) van
D) single truck
Question 7
What is a converter dolly?
A) device coupling doubles
B) a light
C) a tool box
D) a spare tire
Question 8
How couple doubles?
A) front first always
B) rear trailer, dolly, front trailer in order
C) no order
D) any order
Question 9
What is the crack-the-whip effect?
A) tire pop
B) brake lock
C) engine surge
D) rear trailer swings in turns
Question 10
How prevent rollover in combos?
A) no need
B) brake in curve
C) slow well below curve speed
D) speed through
Question 11
What is off-tracking in combos?
A) brake wear
B) tire brand
C) rear follows shorter path
D) speeding
Question 12
How check coupling?
A) radio test
B) paint check
C) fifth-wheel jaws locked, no gap
D) tire shine
Question 13
What is trailer hand valve for?
A) parking
B) testing trailer brakes only
C) lights
D) fueling
Question 14
How test trailer emergency brakes?
A) visual only
B) charge, pull supply, tug test
C) no test
D) drive fast
Question 15
What is a shut-off valve for?
A) horn
B) controls air to rear in doubles
C) lights
D) fuel flow
Question 16
How many valves on last trailer?
A) one open
B) none open (all closed)
C) all open
D) half open
Question 17
What is the air line order?
A) no lines
B) connect service+emergency before moving
C) drive then connect
D) one line enough
Question 18
How inspect pintle hook?
A) no chains
B) loose ok
C) rust fine
D) latched, safety chains crossed
Question 19
What are safety chains for?
A) weight
B) backup coupling if hook fails
C) noise
D) looks
Question 20
How brake with empty trailers?
A) gentler (light trailers lock easily)
B) harder
C) same
D) no brakes

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