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

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

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) van

C) bus

D) single truck

Question 2

What is a converter dolly?

A) a spare tire

B) device coupling doubles

C) a tool box

D) a light

Question 3

How couple doubles?

A) rear trailer, dolly, front trailer in order

B) no order

C) any order

D) front first always

Question 4

What is the crack-the-whip effect?

A) tire pop

B) engine surge

C) brake lock

D) rear trailer swings in turns

Question 5

How prevent rollover in combos?

A) no need

B) brake in curve

C) speed through

D) slow well below curve speed

Question 6

What is off-tracking in combos?

A) brake wear

B) tire brand

C) rear follows shorter path

D) speeding

Question 7

How check coupling?

A) radio test

B) fifth-wheel jaws locked, no gap

C) paint check

D) tire shine

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) visual only

B) no test

C) drive fast

D) charge, pull supply, tug test

Question 10

What is a shut-off valve for?

A) controls air to rear in doubles

B) horn

C) lights

D) fuel flow

Question 11

How many valves on last trailer?

A) half open

B) all open

C) one open

D) none open (all closed)

Question 12

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

How inspect pintle hook?

A) rust fine

B) no chains

C) latched, safety chains crossed

D) loose ok

Question 14

What are safety chains for?

A) weight

B) looks

C) noise

D) backup coupling if hook fails

Question 15

How brake with empty trailers?

A) no brakes

B) gentler (light trailers lock easily)

C) same

D) harder

Question 16

What is trailers jackknifing?

A) parking trick

B) tractor-trailer folds in skid

C) turning wide

D) coupling step

Question 17

How avoid jackknife?

A) steady braking, no sudden moves

B) jerk wheel

C) slam brakes

D) speed up

Question 18

How handle doubles in wind?

A) speed up

B) slow, extra space, firm grip

C) stop in lane

D) ignore

Question 19

What is rearward amplification?

A) fuel use

B) last trailer moves most

C) engine power

D) brake force

Question 20

How lane change with doubles?

A) tailgate first

B) no signal

C) slower, more space, signal long

D) quick swerve

US New Mexico DMV CDL Combination Vehicles Test 8

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