Be sure that you are coupling correctly.

You can assume all vehicles are the same.

Cracks in the mounting are acceptable.

Tires lose their grip on the road.

There is too much weight in the trailer.

New Mexico CDL Double 1 - DMV Written Test Questions with Answers

Q.1

One way to avoid becoming an aggressive driver is to:

Talk on your cell phone while driving.
Question others' driving abilities.
Set realistic expectations regarding travel time.

Q.2

What is reaction distance?

The distance you will travel between realizing you must brake and when you physically hit the brakes
The distance you will travel between a hazard becoming visible and you seeing the hazard
The distance you will travel between seeing a hazard and realizing you must brake

Q.3

If manufactured after 1998, converter dollies on doubles and triples:

May have ABS.
Will not have ABS.
Do not always have ABS.

Q.4

The use of a hand-held mobile device while driving is:

Prohibited.
Acceptable if weather conditions are clear.
Permitted if use is work-related.

Q.5

When coming to a stop, you should apply the brake pedal by:

Pushing down gradually.
Pushing down quickly.
Pulling up gradually.

Q.6

If approaching a railroad crossing that is being approached by a train, you should:

Try to cross the tracks quickly.
Drive around any lowered gates.
Stop and wait for the train to pass before beginning across the tracks.

Q.7

When coupling:

You can assume all vehicles are the same.
Be sure that you are coupling correctly.
Cracks in the mounting are acceptable.

Q.8

If turning to avoid a hazard:

You should brake hard.
You should not brake as it may cause the wheels to lock.
You should turn very sharply.

Q.9

Within 10 minutes of stopping on the side of the road, you must:

Place emergency warning devices.
Alert local law enforcement.
Call a mechanic.

Q.10

Having anti-lock brakes on only one axle:

Will not make a difference in braking.
Will provide increased control in braking.
Will likely cause the air brakes to malfunction.

Q.11

____ is a thin layer of ice that forms on road surfaces.

White ice
Black ice
Green ice

Q.12

When operating a set of doubles, the shut-off valves at the rear of the first trailer should be in their:

Lifted position.
Closed position.
Open position.

Q.13

When in heavy traffic, the safest driving speed is:

Slower than the speed being driven by surrounding traffic.
The same speed being driven by surrounding traffic.
Faster than the speed being driven by surrounding traffic.

Q.14

An exhaust system should be:

Loose.
Leaking.
Fastened securely.

Q.15

Skids happen when:

Tires lose their grip on the road.
There is too much weight in the trailer.
ABS kicks in.

Q.16

Steering wheel play of more than ____ can make steering difficult.

10 degrees
25 degrees
50 degrees

Q.17

On a curve, the posted speed limit:

Is safe to be driven in any vehicle.
Can still permit a vehicle to tip over.
Is understood to be the minimum legal speed limit.

Q.18

After a tire has been changed, the driver should stop after a short distance of driving to:

Recheck the tightness of the lug nuts.
See if rocks have gotten into the tread.
Polish the tire.

Q.19

In the case of an engine fire, you should not:

Turn off the engine as soon as possible.
Shoot foam through the louvers.
Open the hood.

Q.20

During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?

3 psi in one minute.
6 psi in one minute.
8 psi in one minute.