US Kentucky DMV CDL Combination Vehicles Test 6

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

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

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

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

True or false in Kentucky: one type.

A) True

B) False

Question 2

True or false in Kentucky: visual only.

A) True

B) False

Question 3

True or false in Kentucky: fuel valve.

A) True

B) False

Question 4

True or false in Kentucky: with doubles.

A) True

B) False

Question 5

Which is correct about CDL combination vehicles in Kentucky?

A) bus

B) tractor plus trailer(s)

C) van

D) single truck

Question 6

What is a combination vehicle?

A) single truck

B) bus

C) tractor plus trailer(s)

D) van

Question 7

What is a converter dolly?

A) a tool box

B) a light

C) device coupling doubles

D) a spare tire

Question 8

How couple doubles?

A) front first always

B) any order

C) rear trailer, dolly, front trailer in order

D) no order

Question 9

What is the crack-the-whip effect?

A) tire pop

B) brake lock

C) rear trailer swings in turns

D) engine surge

Question 10

How prevent rollover in combos?

A) slow well below curve speed

B) brake in curve

C) no need

D) speed through

Question 11

What is off-tracking in combos?

A) tire brand

B) brake wear

C) rear follows shorter path

D) speeding

Question 12

How check coupling?

A) radio test

B) paint check

C) tire shine

D) fifth-wheel jaws locked, no gap

Question 13

What is trailer hand valve for?

A) testing trailer brakes only

B) fueling

C) lights

D) parking

Question 14

How test trailer emergency brakes?

A) drive fast

B) no test

C) charge, pull supply, tug test

D) visual only

Question 15

What is a shut-off valve for?

A) controls air to rear in doubles

B) lights

C) fuel flow

D) horn

Question 16

How many valves on last trailer?

A) one open

B) half open

C) all open

D) none open (all closed)

Question 17

What is the air line order?

A) no lines

B) connect service+emergency before moving

C) one line enough

D) drive then connect

Question 18

How inspect pintle hook?

A) loose ok

B) no chains

C) latched, safety chains crossed

D) rust fine

Question 19

What are safety chains for?

A) noise

B) looks

C) weight

D) backup coupling if hook fails

Question 20

How brake with empty trailers?

A) same

B) harder

C) gentler (light trailers lock easily)

D) no brakes

US Kentucky DMV CDL Combination Vehicles Test 6

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