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US Colorado DMV CDL Combination Vehicles Test 7

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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

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 trailers jackknifing?
A) parking trick
B) turning wide
C) tractor-trailer folds in skid
D) coupling step
Question 2
How avoid jackknife?
A) slam brakes
B) jerk wheel
C) speed up
D) steady braking, no sudden moves
Question 3
How handle doubles in wind?
A) stop in lane
B) ignore
C) speed up
D) slow, extra space, firm grip
Question 4
What is rearward amplification?
A) engine power
B) brake force
C) fuel use
D) last trailer moves most
Question 5
How lane change with doubles?
A) tailgate first
B) no signal
C) quick swerve
D) slower, more space, signal long
Question 6
What is a lowboy trailer?
A) food trailer
B) van
C) low deck for heavy equipment
D) tanker
Question 7
How secure converter dolly?
A) no lights
B) loose tow
C) fast tow
D) safety chains, lights connected
Question 8
What is kingpin inspection?
A) not bent, cracks, locked
B) grease amount
C) brand
D) paint color
Question 9
What gap between fifth wheel?
A) any gap
B) 1 inch ok
C) not checked
D) no gap (tight coupling)
Question 10
How uncouple safely?
A) any slope
B) level ground, brakes set, lower gear first
C) no brakes
D) fast pull
Question 11
What is trailer ABS light for?
A) brake lights
B) turn signal
C) shows trailer ABS fault
D) decoration
Question 12
How test ABS?
A) ask others
B) no test
C) watch dash + trailer lamp at startup
D) drive test
Question 13
What is landing gear position?
A) fully raised for travel
B) down always
C) dragging fine
D) half down ok
Question 14
How cross railroad with doubles?
A) stop on tracks
B) race gates
C) know clearance, never stop on tracks
D) shift on tracks
Question 15
What following distance for combos?
A) tailgate
B) 6+ seconds at speed
C) no rule
D) 2 seconds
Question 16
What are trailer brakes types?
A) hand only
B) no trailer brakes
C) one type
D) service, emergency, parking
Question 17
How check air lines on doubles?
A) visual only
B) no check
C) tug hard
D) connected, sealed, no leaks or tangles
Question 18
What is a tractor protection valve?
A) keeps tractor air if trailer breaks away
B) light switch
C) horn
D) fuel valve
Question 19
How test tractor protection?
A) no test
B) pull trailer supply, check tractor brakes hold
C) drive test
D) ask others
Question 20
What is bobtailing?
A) parking
B) backing
C) with doubles
D) driving tractor without trailer

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