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

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

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) van

B) bus

C) single truck

D) tractor plus trailer(s)

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) 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) engine surge

B) tire pop

C) brake lock

D) rear trailer swings in turns

Question 5

How prevent rollover in combos?

A) slow well below curve speed

B) no need

C) brake in curve

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) tire shine

C) fifth-wheel jaws locked, no gap

D) radio test

Question 8

What is trailer hand valve for?

A) lights

B) testing trailer brakes only

C) parking

D) fueling

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) lights

B) fuel flow

C) controls air to rear in doubles

D) horn

Question 11

How many valves on last trailer?

A) all open

B) half open

C) one open

D) none open (all closed)

Question 12

What is the air line order?

A) drive then connect

B) one line enough

C) connect service+emergency before moving

D) no lines

Question 13

How inspect pintle hook?

A) no chains

B) latched, safety chains crossed

C) loose ok

D) rust fine

Question 14

What are safety chains for?

A) noise

B) looks

C) weight

D) backup coupling if hook fails

Question 15

How brake with empty trailers?

A) harder

B) same

C) gentler (light trailers lock easily)

D) no brakes

Question 16

What is trailers jackknifing?

A) parking trick

B) coupling step

C) turning wide

D) tractor-trailer folds in skid

Question 17

How avoid jackknife?

A) speed up

B) steady braking, no sudden moves

C) jerk wheel

D) slam brakes

Question 18

How handle doubles in wind?

A) stop in lane

B) speed up

C) ignore

D) slow, extra space, firm grip

Question 19

What is rearward amplification?

A) engine power

B) fuel use

C) last trailer moves most

D) brake force

Question 20

How lane change with doubles?

A) slower, more space, signal long

B) no signal

C) quick swerve

D) tailgate first

US New Hampshire DMV CDL Combination Vehicles Test 8

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