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

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

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 tool box

B) a light

C) device coupling doubles

D) a spare tire

Question 3

How couple doubles?

A) no order

B) any order

C) rear trailer, dolly, front trailer in order

D) front first always

Question 4

What is the crack-the-whip effect?

A) rear trailer swings in turns

B) brake lock

C) tire pop

D) engine surge

Question 5

How prevent rollover in combos?

A) slow well below curve speed

B) speed through

C) no need

D) brake in curve

Question 6

What is off-tracking in combos?

A) brake wear

B) tire brand

C) rear follows shorter path

D) speeding

Question 7

How check coupling?

A) radio test

B) paint check

C) fifth-wheel jaws locked, no gap

D) tire shine

Question 8

What is trailer hand valve for?

A) testing trailer brakes only

B) lights

C) fueling

D) parking

Question 9

How test trailer emergency brakes?

A) no test

B) charge, pull supply, tug test

C) visual only

D) drive fast

Question 10

What is a shut-off valve for?

A) horn

B) lights

C) fuel flow

D) controls air to rear in doubles

Question 11

How many valves on last trailer?

A) all open

B) one open

C) none open (all closed)

D) half open

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) rust fine

B) latched, safety chains crossed

C) no chains

D) loose ok

Question 14

What are safety chains for?

A) noise

B) backup coupling if hook fails

C) weight

D) looks

Question 15

How brake with empty trailers?

A) no brakes

B) same

C) gentler (light trailers lock easily)

D) harder

Question 16

What is trailers jackknifing?

A) coupling step

B) tractor-trailer folds in skid

C) turning wide

D) parking trick

Question 17

How avoid jackknife?

A) slam brakes

B) jerk wheel

C) steady braking, no sudden moves

D) speed up

Question 18

How handle doubles in wind?

A) slow, extra space, firm grip

B) ignore

C) speed up

D) stop in lane

Question 19

What is rearward amplification?

A) fuel use

B) last trailer moves most

C) brake force

D) engine power

Question 20

How lane change with doubles?

A) no signal

B) slower, more space, signal long

C) quick swerve

D) tailgate first

US Tennessee DMV CDL Combination Vehicles Test 8

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