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

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

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