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

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

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 Alabama, what is a combination vehicle?

A) single truck

B) bus

C) van

D) tractor plus trailer(s)

Question 2

In Alabama, what is a converter dolly?

A) device coupling doubles

B) a spare tire

C) a light

D) a tool box

Question 3

In Alabama, how couple doubles?

A) any order

B) no order

C) rear trailer, dolly, front trailer in order

D) front first always

Question 4

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

A) brake lock

B) engine surge

C) tire pop

D) rear trailer swings in turns

Question 5

In Alabama, how prevent rollover in combos?

A) slow well below curve speed

B) no need

C) brake in curve

D) speed through

Question 6

In Alabama, what is off-tracking in combos?

A) speeding

B) tire brand

C) brake wear

D) rear follows shorter path

Question 7

In Alabama, how check coupling?

A) tire shine

B) paint check

C) fifth-wheel jaws locked, no gap

D) radio test

Question 8

In Alabama, what is trailer hand valve for?

A) parking

B) fueling

C) lights

D) testing trailer brakes only

Question 9

In Alabama, how test trailer emergency brakes?

A) visual only

B) drive fast

C) no test

D) charge, pull supply, tug test

Question 10

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

A) lights

B) fuel flow

C) controls air to rear in doubles

D) horn

Question 11

In Alabama, how many valves on last trailer?

A) one open

B) all open

C) half open

D) none open (all closed)

Question 12

In Alabama, what is the air line order?

A) one line enough

B) no lines

C) connect service+emergency before moving

D) drive then connect

Question 13

In Alabama, how inspect pintle hook?

A) rust fine

B) loose ok

C) latched, safety chains crossed

D) no chains

Question 14

In Alabama, what are safety chains for?

A) weight

B) backup coupling if hook fails

C) looks

D) noise

Question 15

In Alabama, how brake with empty trailers?

A) same

B) gentler (light trailers lock easily)

C) harder

D) no brakes

Question 16

In Alabama, what is trailers jackknifing?

A) coupling step

B) parking trick

C) turning wide

D) tractor-trailer folds in skid

Question 17

In Alabama, how avoid jackknife?

A) speed up

B) slam brakes

C) steady braking, no sudden moves

D) jerk wheel

Question 18

In Alabama, how handle doubles in wind?

A) ignore

B) speed up

C) slow, extra space, firm grip

D) stop in lane

Question 19

In Alabama, what is rearward amplification?

A) last trailer moves most

B) engine power

C) fuel use

D) brake force

Question 20

In Alabama, how lane change with doubles?

A) slower, more space, signal long

B) quick swerve

C) tailgate first

D) no signal

US Alabama DMV CDL Combination Vehicles Test 1

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