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

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

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) single truck

C) van

D) bus

Question 2

What is a converter dolly?

A) a tool box

B) a light

C) a spare tire

D) device coupling doubles

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) engine surge

C) tire pop

D) brake lock

Question 5

How prevent rollover in combos?

A) brake in curve

B) speed through

C) slow well below curve speed

D) no need

Question 6

What is off-tracking in combos?

A) brake wear

B) rear follows shorter path

C) tire brand

D) speeding

Question 7

How check coupling?

A) tire shine

B) paint check

C) fifth-wheel jaws locked, no gap

D) radio test

Question 8

What is trailer hand valve for?

A) fueling

B) parking

C) lights

D) testing trailer brakes only

Question 9

How test trailer emergency brakes?

A) visual only

B) drive fast

C) no test

D) charge, pull supply, tug test

Question 10

What is a shut-off valve for?

A) lights

B) fuel flow

C) horn

D) controls air to rear in doubles

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) connect service+emergency before moving

B) one line enough

C) drive then connect

D) no lines

Question 13

How inspect pintle hook?

A) rust fine

B) latched, safety chains crossed

C) loose ok

D) no chains

Question 14

What are safety chains for?

A) noise

B) backup coupling if hook fails

C) looks

D) weight

Question 15

How brake with empty trailers?

A) same

B) gentler (light trailers lock easily)

C) no brakes

D) harder

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) speed up

D) jerk wheel

Question 18

How handle doubles in wind?

A) ignore

B) slow, extra space, firm grip

C) speed up

D) stop in lane

Question 19

What is rearward amplification?

A) brake force

B) last trailer moves most

C) fuel use

D) engine power

Question 20

How lane change with doubles?

A) tailgate first

B) quick swerve

C) slower, more space, signal long

D) no signal

US Massachusetts DMV CDL Combination Vehicles Test 8

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