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New Mexico 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. Each question has three possible answer choices. Test questions come from the New Mexico Commercial Driver License Manual. 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.
If a truck is equipped, a trailer brake hand valve can be used to:
Add fuel to the truck.
Prevent the truck from rolling back when being started from a stop.
Check the engine oil level.
2.
After a tire has been changed, the driver should stop after a short distance to:
Check the tightness of the lug nuts.
Ensure that the tire has remained clean.
Inflate the new tire.
3.
To make it easier to leave a parked position, you should park:
In a way that allows you to back up when exiting.
In a way that allows you to pull forward when exiting.
Only on the side of roadways, not in parking lots.
4.
When driving on packed snow, you should reduce your speed by:
One-half or more.
About one-third.
About one-quarter.
5.
During an inspection, slack adjusters on S-cam brakes should not move more than:
One foot.
One centimeter.
One inch.
6.
If the brakes pull to one side or the other when used:
They are working properly.
They need to be checked.
They will be the most effective.
7.
Once cargo is secured onto a vehicle:
You do not need to inspect the cargo.
You should not let others inspect the cargo.
You should check the cargo every 150 miles.
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