US Missouri DMV CDL Combination Vehicles Test 8

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

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DMV Missouri — Cdl Combination DMV — Missouri (USA, State Traffic Law) USA — Missouri State DMV & FMCSA (MUTCD) — USA

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

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) tractor plus trailer(s)

B) bus

C) single truck

D) van

Question 2

What is a converter dolly?

A) a tool box

B) device coupling doubles

C) a light

D) a spare tire

Question 3

How couple doubles?

A) no order

B) front first always

C) rear trailer, dolly, front trailer in order

D) any order

Question 4

What is the crack-the-whip effect?

A) tire pop

B) engine surge

C) rear trailer swings in turns

D) brake lock

Question 5

How prevent rollover in combos?

A) brake in curve

B) no need

C) slow well below curve speed

D) speed through

Question 6

What is off-tracking in combos?

A) rear follows shorter path

B) brake wear

C) tire brand

D) speeding

Question 7

How check coupling?

A) paint check

B) radio test

C) fifth-wheel jaws locked, no gap

D) tire shine

Question 8

What is trailer hand valve for?

A) fueling

B) testing trailer brakes only

C) parking

D) lights

Question 9

How test trailer emergency brakes?

A) drive fast

B) charge, pull supply, tug test

C) visual only

D) no test

Question 10

What is a shut-off valve for?

A) fuel flow

B) lights

C) controls air to rear in doubles

D) horn

Question 11

How many valves on last trailer?

A) half open

B) one open

C) all open

D) none open (all closed)

Question 12

What is the air line order?

A) drive then connect

B) no lines

C) connect service+emergency before moving

D) one line enough

Question 13

How inspect pintle hook?

A) no chains

B) rust fine

C) latched, safety chains crossed

D) loose ok

Question 14

What are safety chains for?

A) noise

B) weight

C) backup coupling if hook fails

D) looks

Question 15

How brake with empty trailers?

A) same

B) harder

C) no brakes

D) gentler (light trailers lock easily)

Question 16

What is trailers jackknifing?

A) coupling step

B) parking trick

C) turning wide

D) tractor-trailer folds in skid

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) speed up

B) ignore

C) stop in lane

D) slow, extra space, firm grip

Question 19

What is rearward amplification?

A) brake force

B) fuel use

C) engine power

D) last trailer moves most

Question 20

How lane change with doubles?

A) no signal

B) slower, more space, signal long

C) quick swerve

D) tailgate first

US Missouri DMV CDL Combination Vehicles Test 8

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