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Texas 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. Each question has four answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Texas Commercial Motor Vehicle Drivers Handbook. Questions come from chapters covering: Driving Safely, Air Brakes (if applicable), Combination Vehicles and 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
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1.
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.
2.
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.
3.
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.
4.
Emergency brakes:
Are not required on trucks.
Are only required on trailers.
Are required on tractors.
Are optional.
5.
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.
6.
Stopping distance can be affected by:
Speed.
Temperature.
Time of day.
Traffic.
7.
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.
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