US Colorado 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 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 a combination vehicle?

A) bus

B) tractor plus trailer(s)

C) van

D) single truck

Question 2

What is a converter dolly?

A) a light

B) device coupling doubles

C) a spare tire

D) a tool box

Question 3

How couple doubles?

A) any order

B) rear trailer, dolly, front trailer in order

C) front first always

D) no order

Question 4

What is the crack-the-whip effect?

A) engine surge

B) brake lock

C) tire pop

D) rear trailer swings in turns

Question 5

How prevent rollover in combos?

A) brake in curve

B) slow well below curve speed

C) no need

D) speed through

Question 6

What is off-tracking in combos?

A) speeding

B) rear follows shorter path

C) tire brand

D) brake wear

Question 7

How check coupling?

A) fifth-wheel jaws locked, no gap

B) tire shine

C) paint check

D) radio test

Question 8

What is trailer hand valve for?

A) fueling

B) testing trailer brakes only

C) lights

D) parking

Question 9

How test trailer emergency brakes?

A) visual only

B) no test

C) charge, pull supply, tug test

D) drive fast

Question 10

What is a shut-off valve for?

A) fuel flow

B) horn

C) controls air to rear in doubles

D) lights

Question 11

How many valves on last trailer?

A) none open (all closed)

B) one open

C) all open

D) half open

Question 12

What is the air line order?

A) drive then connect

B) connect service+emergency before moving

C) no lines

D) one line enough

Question 13

How inspect pintle hook?

A) loose ok

B) rust fine

C) no chains

D) latched, safety chains crossed

Question 14

What are safety chains for?

A) looks

B) weight

C) noise

D) backup coupling if hook fails

Question 15

How brake with empty trailers?

A) same

B) no brakes

C) harder

D) gentler (light trailers lock easily)

Question 16

What is trailers jackknifing?

A) tractor-trailer folds in skid

B) coupling step

C) turning wide

D) parking trick

Question 17

How avoid jackknife?

A) jerk wheel

B) slam brakes

C) speed up

D) steady braking, no sudden moves

Question 18

How handle doubles in wind?

A) stop in lane

B) slow, extra space, firm grip

C) ignore

D) speed up

Question 19

What is rearward amplification?

A) last trailer moves most

B) fuel use

C) engine power

D) brake force

Question 20

How lane change with doubles?

A) quick swerve

B) tailgate first

C) no signal

D) slower, more space, signal long

US Colorado DMV CDL Combination Vehicles Test 8

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