US Ohio DMV CDL Combination Vehicles Test 1

DMV & CDL » Category

Author: TestGru Team (Education Specialist)

20 questions · All questions on one page

Prepared with up-to-date content

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

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

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

In Ohio, what is a combination vehicle?

A) bus

B) single truck

C) van

D) tractor plus trailer(s)

Question 2

In Ohio, what is a converter dolly?

A) device coupling doubles

B) a spare tire

C) a tool box

D) a light

Question 3

In Ohio, how couple doubles?

A) no order

B) any order

C) front first always

D) rear trailer, dolly, front trailer in order

Question 4

In Ohio, what is the crack-the-whip effect?

A) engine surge

B) brake lock

C) tire pop

D) rear trailer swings in turns

Question 5

In Ohio, how prevent rollover in combos?

A) no need

B) speed through

C) slow well below curve speed

D) brake in curve

Question 6

In Ohio, what is off-tracking in combos?

A) tire brand

B) brake wear

C) speeding

D) rear follows shorter path

Question 7

In Ohio, how check coupling?

A) radio test

B) paint check

C) tire shine

D) fifth-wheel jaws locked, no gap

Question 8

In Ohio, what is trailer hand valve for?

A) parking

B) testing trailer brakes only

C) lights

D) fueling

Question 9

In Ohio, how test trailer emergency brakes?

A) no test

B) charge, pull supply, tug test

C) drive fast

D) visual only

Question 10

In Ohio, what is a shut-off valve for?

A) fuel flow

B) horn

C) controls air to rear in doubles

D) lights

Question 11

In Ohio, how many valves on last trailer?

A) none open (all closed)

B) all open

C) half open

D) one open

Question 12

In Ohio, what is the air line order?

A) drive then connect

B) one line enough

C) no lines

D) connect service+emergency before moving

Question 13

In Ohio, how inspect pintle hook?

A) rust fine

B) loose ok

C) latched, safety chains crossed

D) no chains

Question 14

In Ohio, what are safety chains for?

A) weight

B) noise

C) looks

D) backup coupling if hook fails

Question 15

In Ohio, how brake with empty trailers?

A) gentler (light trailers lock easily)

B) no brakes

C) same

D) harder

Question 16

In Ohio, what is trailers jackknifing?

A) tractor-trailer folds in skid

B) parking trick

C) coupling step

D) turning wide

Question 17

In Ohio, how avoid jackknife?

A) jerk wheel

B) steady braking, no sudden moves

C) slam brakes

D) speed up

Question 18

In Ohio, how handle doubles in wind?

A) stop in lane

B) speed up

C) ignore

D) slow, extra space, firm grip

Question 19

In Ohio, what is rearward amplification?

A) brake force

B) last trailer moves most

C) fuel use

D) engine power

Question 20

In Ohio, how lane change with doubles?

A) tailgate first

B) no signal

C) quick swerve

D) slower, more space, signal long

US Ohio DMV CDL Combination Vehicles Test 1

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