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

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

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 Maryland, what is a combination vehicle?

A) tractor plus trailer(s)

B) single truck

C) bus

D) van

Question 2

In Maryland, what is a converter dolly?

A) a light

B) device coupling doubles

C) a tool box

D) a spare tire

Question 3

In Maryland, how couple doubles?

A) rear trailer, dolly, front trailer in order

B) any order

C) no order

D) front first always

Question 4

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

A) engine surge

B) rear trailer swings in turns

C) tire pop

D) brake lock

Question 5

In Maryland, how prevent rollover in combos?

A) speed through

B) slow well below curve speed

C) no need

D) brake in curve

Question 6

In Maryland, what is off-tracking in combos?

A) tire brand

B) brake wear

C) speeding

D) rear follows shorter path

Question 7

In Maryland, how check coupling?

A) radio test

B) paint check

C) fifth-wheel jaws locked, no gap

D) tire shine

Question 8

In Maryland, what is trailer hand valve for?

A) parking

B) fueling

C) lights

D) testing trailer brakes only

Question 9

In Maryland, how test trailer emergency brakes?

A) no test

B) charge, pull supply, tug test

C) drive fast

D) visual only

Question 10

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

A) horn

B) fuel flow

C) lights

D) controls air to rear in doubles

Question 11

In Maryland, how many valves on last trailer?

A) all open

B) one open

C) half open

D) none open (all closed)

Question 12

In Maryland, what is the air line order?

A) one line enough

B) connect service+emergency before moving

C) drive then connect

D) no lines

Question 13

In Maryland, how inspect pintle hook?

A) rust fine

B) loose ok

C) latched, safety chains crossed

D) no chains

Question 14

In Maryland, what are safety chains for?

A) weight

B) backup coupling if hook fails

C) noise

D) looks

Question 15

In Maryland, how brake with empty trailers?

A) gentler (light trailers lock easily)

B) no brakes

C) harder

D) same

Question 16

In Maryland, what is trailers jackknifing?

A) coupling step

B) turning wide

C) parking trick

D) tractor-trailer folds in skid

Question 17

In Maryland, how avoid jackknife?

A) slam brakes

B) jerk wheel

C) speed up

D) steady braking, no sudden moves

Question 18

In Maryland, how handle doubles in wind?

A) slow, extra space, firm grip

B) speed up

C) stop in lane

D) ignore

Question 19

In Maryland, what is rearward amplification?

A) engine power

B) fuel use

C) brake force

D) last trailer moves most

Question 20

In Maryland, how lane change with doubles?

A) slower, more space, signal long

B) tailgate first

C) quick swerve

D) no signal

US Maryland DMV CDL Combination Vehicles Test 1

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