Pennsylvania CDL Double 1 - DMV Written Test Questions with Answers - MCQGeeks.com

Q.1

What is another name for the service line?

Control line
Exchange line
Surplus line
Parallel line

Q.2

Eating while driving:

Is a good way to maximize time.
Is encouraged on long trips.
Creates a distraction for the driver.
Is mandatory so cargo is not left unsupervised.

Q.3

Low underneath clearance can cause difficulties when driving:

Over railroad crossings.
On gravel roads.
Around corners.
At the posted speed limit.

Q.4

Push in the trailer air supply control to:

Activate the emergency brakes.
Deactivate the air brakes.
Sound the horn.
Supply the trailer with air.

Q.5

Cargo inside a trailer:

Does not need to be secured.
Should be stacked no more than three feet high.
Should be secured to prevent movement.
Should be loaded with the heaviest items on top of lighter items.

Q.6

What happens when the wheels of a trailer lock up?

The trailer will usually continue to move in a straight line.
The trailer will disengage.
The trailer will likely swing around.
The trailer will stop.

Q.7

A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.

Green
Yellow
Orange
White

Q.8

When an engine is started:

The brakes should be locked up.
Warning lights should come on and then quickly turn off.
The coolant temperature will decrease.
The hood must be open.

Q.9

During an applied leakage test, the maximum leakage rate for a triple combination vehicle is:

10 psi in a minute.
8 psi in a minute.
6 psi in a minute.
4 psi in a minute.

Q.10

Placards should be used:

Any time a vehicle is carrying hazardous materials.
If there is open space in the truck.
If the amount of hazardous materials in the truck exceeds 200 pounds.
If the hazardous materials create an inhalation hazard.

Q.11

In a set of triples, the shut-off valves at the rear of the middle trailer should be:

Removed.
Closed.
Polished.
Open.

Q.12

Over-the-counter medication:

Cannot impair a driver.
Poses no safety risks to a driver.
Is not referenced by any laws regarding driving under the influence.
Can affect a person’s ability to drive safely.

Q.13

Rollovers happen when:

A truck driver is driving too fast.
The driver of a vehicle in front of a truck is moving to slowly.
A truck driver is driving too slowly.
ABS is working effectively.

Q.14

When uncoupling a dolly, you should:

Unlock the pintle hook before moving the dolly out from under the rear trailer.
Move the dolly out from under the rear trailer before unlocking the pintle hook.
Raise the dolly landing gear.
Remove the dolly as quickly as possible.

Q.15

Why do you need to drain air tanks regularly?

Because the air gets old and needs to be replaced
Because compressed air contains some water which must be drained from the tanks
To allow for a change in air pressure
To remove bad air from the tanks

Q.16

What is a tractor protection valve?

A valve to keep air in the brake system should there be a bad leak
A valve that prevents the truck from being stolen
A valve that prevents the driver from going too fast
A valve that prevents the trailer from accidentally being released

Q.17

Backing with a trailer is dangerous because:

It is difficult to see behind the vehicle.
Most trucks do not have the ability to move in reverse.
Cargo may fall out of the trailer.
There may be extra weight in the front of the trailer.

Q.18

Which of the following surfaces provides the least amount of traction?

Ice that is dry
Ice that is wet
Wet pavement
Dry pavement

Q.19

What can happen if a parking brake is used in very wet weather when temperatures are below freezing?

The brakes will squeak.
The brakes may freeze so the vehicle cannot move.
The brakes may suddenly release by themselves.
The brakes may explode.

Q.20

A pre-trip inspection includes ____ basic steps.

Two
Four
Seven
Nine

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