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Pennsylvania CDL Permit Test - Double

Number of questions: 20
Passing score: 16
Directions: This endorsement is required if the driver will pull two or three trailers. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Commonwealth of Pennsylvania Commercial Driver’s Manual. Questions come from chapter covering: Doubles and Triples. The Double/Triple endorsement can be used with the Class A CDL.
You have made error so far
Passing grade —
4 or fewer errors
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.
If unsure if a road is becoming icy, a driver can:
Open the window and check the front of the mirror for ice.
Try to look at the road closely.
Look at a weather forecast.
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
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.
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
Large combination vehicles take the longest amount of time to stop:
When fully loaded.
When partially loaded.
When empty.
When mostly loaded.
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.
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