Texas CDL Double 2 - DMV Written Test Questions with Answers - MCQGeeks.com

Q.1

Stopping distance can be affected by:

Speed.
Temperature.
Time of day.
Traffic.

Q.2

If you are unsure if there is enough space for your vehicle to safely travel under a bridge, you should:

Speed up.
Swerve as you pass under the bridge.
Slow down.
Drive on the shoulder.

Q.3

To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:

Set the control to normal.
Set the control to the off position.
Set the control to neutral.
Keep the control at the halfway mark.

Q.4

A sign indicating a maximum safe speed:

Is suggesting a driving speed, but vehicles may travel faster than the posted speed.
Is suggesting a speed limit to be followed only by vehicles weighing more than 26,000 pounds.
Should be followed and no vehicle should travel faster than the posted speed.
Is only applicable to automobiles.

Q.5

Emergency brakes:

Are not required on trucks.
Are only required on trailers.
Are required on tractors.
Are optional.

Q.6

When backing, you should:

Move quickly to get out of the way of other drivers.
Try not to use your mirrors.
Start from any position.
Use a helper, if possible.

Q.7

If a traffic light has been green for a long time:

It will probably stay green as you approach.
It is likely broken.
It is likely that the light will soon change to yellow.
It is likely the light will skip yellow and change from green to red.

Q.8

What color is the low air pressure warning light?

Green
Orange
Red
Purple

Q.9

Large combination vehicles take the longest amount of time to stop:

When fully loaded.
When partially loaded.
When empty.
When mostly loaded.

Q.10

After finishing a pre-trip inspection, you should:

Close the service line valve.
Remove the service line valve.
Leave the emergency line valve open.
Leave the rear shut-off valves open.

Q.11

When checking the engine compartment:

The parking brake should not be engaged.
Wheels should be chocked.
The engine should be running.
The gearshift should be in first gear.

Q.12

A tractor protection valve is:

A device that keeps air in the tractor or truck brake system, should the trailer break away or develop a bad leak.
A device that prevents theft.
A device that controls fuel levels.
A device that allows the battery to recharge efficiently.

Q.13

Due to the "crack-the-whip" effect:

Doubles and triples are more likely to turn over than other combination vehicles.
A combination vehicle will make a loud noise if driven fast enough.
The tires on a middle trailer will lock up at all stops.
Vehicles following a truck will be able to travel faster than normal.

Q.14

When driving a double, the lightest trailer should be placed:

In the first position.
In the middle position.
In the rear position.
In any position.

Q.15

During a walk-around inspection, ensure there are no cracks on the brake drums that are more than ____ of the width of the friction area.

One half
One quarter
One third
One tenth

Q.16

When coupling a trailer:

Make sure to couple matching glad hands.
Any glad hand can be connected to any other glad hand.
It is best to leave one glad hand unattached.
Only one set of glad hands should be connected.

Q.17

If the air pressure warning light comes on, you should:

Continue driving normally.
Activate your hazard lights and continue driving.
Call the local law enforcement agency.
Safely exit the roadway and stop.

Q.18

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

White ice
Black ice
Green ice
Blue ice

Q.19

When driving a double or triple, it is important to remember that:

The vehicle requires more space than most other vehicles.
Other drivers will likely get out of your way when necessary.
The vehicle likely weighs the same as other vehicles.
The vehicle can easily fit into small spaces.

Q.20

How are dolly brakes released?

By opening the air tank petcock
By releasing the supply valve
By closing the supply valve
By turning off the retarder

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