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Driving Test
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Driving Test
Pennsylvania
Pennsylvania CDL Double 2
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Q.1
Submit
A loss of air pressure in the emergency line will cause:
The service brakes to activate.
The tractor protection valve to close.
The rear trailer to detach from the combination.
The suspension springs to extend.
Q.2
Submit
When approaching a railroad crossing, you should:
Increase your speed to get across the tracks as quickly as possible.
Roll your window down to listen for a train.
Rely on traffic control signals.
Never try to outdrive an approaching train.
Q.3
Submit
A converter dolly that has ABS can be identified:
By a blue sticker.
By an orange sticker.
By a yellow lamp on the left side of the dolly.
By a blue lamp on the left side of the trailer.
Q.4
Submit
Why are roads especially slippery right after it begins to rain?
The water mixes with oil and grease on the road.
Roads are naturally slippery.
Gravel often gets washed to the middle of the lane.
Tires are not usually designed to drive in rain.
Q.5
Submit
Before entering a curve, you should:
Upshift.
Speed up.
Drive on the shoulder.
Downshift.
Q.6
Submit
To confirm that a trailer has ABS, you can:
Look under the trailer for wheel speed sensors coming from the back of the brakes.
Look under the hood for the ABS sticker.
Look at the tires.
Remove a tire and look for the ABS sensor on the axle.
Q.7
Submit
Which of the following surfaces provides the least amount of traction?
Ice that is dry
Ice that is wet
Wet pavement
Dry pavement
Q.8
Submit
Large combination vehicles take the longest amount of time to stop:
When fully loaded.
When partially loaded.
When empty.
When mostly loaded.
Q.9
Submit
Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to a passenger in their vehicle
A child on the side of the road
A construction worker on the side of the road
A person sitting on a bench waiting for a bus
Q.10
Submit
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.11
Submit
Passive railroad crossings:
Are controlled by flashing lights.
Are not controlled by any type of traffic control device.
Have gates that lower when trains are approaching.
Should never be crossed by a CMV.
Q.12
Submit
When backing up to couple a trailer, you should position the tractor:
At a 90-degree angle in front of the trailer.
Directly in front of the trailer.
At a 30-degree angle in front of the trailer.
At a 60-degree angle in front of the trailer.
Q.13
Submit
While inspecting coupling equipment before a trip, the air lines should not:
Be connected to the glad hands.
Have any slack.
Be secured.
Be leaking.
Q.14
Submit
If unsure if a road is becoming icy, a driver can:
Guess.
Open the window and check the front of the mirror for ice.
Try to look at the road closely.
Look at a weather forecast.
Q.15
Submit
Which of the following is not an example of a driver who might be a hazard?
A driver operating a vehicle without first scraping ice off the windshield
The operator of a rental truck
The driver of a station wagon with items covering the back windows
A person operating a pick-up truck
Q.16
Submit
Both systems in a dual air brake systems share:
Air tanks.
Hoses.
Air lines.
An air compressor.
Q.17
Submit
Which factor does not have an impact on a person’s blood alcohol concentration (BAC)?
The number of alcoholic drinks consumed
How quickly the alcoholic drinks were consumed
The weight of the drinker
The temperature of the drinks
Q.18
Submit
When traveling down a hill:
Your speed will not change.
Your speed will decrease.
Your speed will increase.
You will slow to a stop.
Q.19
Submit
Poisonous fumes can enter the cab due to:
A defective exhaust system.
The wrong type of fuel being used.
A lack of oil in the engine.
Under-inflated tires.
Q.20
Submit
If you plan to slow down, you can warn drivers behind you by:
Slamming on the brakes.
Tapping the brakes a few times and before braking.
Turning on one set of turn signals.
Putting your hand out the driver's side window and waving.
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