|Number of tests:||1|
|Number of questions:||30|
Directions: To obtain this endorsement for pulling two or three trailers, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the South Carolina Commercial Driver Handbook. The Double/Triple trailers endorsement can be used with the Class A CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at South Carolina DMV locations.
Sound your horn
Flash your high beams
Turn on your high beams
Turn off your headlights
Keep driving until you see the vehicle.
Speed up and turn at the next intersection.
Pull to the curb and look to see if it is on your street.
Slow down but don't stop until you see it.
Any vehicle with 3 or more axles or weighing more than 4,000 pounds.
Tank trucks marked with hazardous materials placards.
Motor homes or pickup trucks towing a boat trailer.
Keep your eyes moving to look for possible hazards.
Look only at the car in front of you while driving.
Always put one car length between you and the car ahead.
The first rain after a dry spell.
During a heavy downpour.
After it has been raining for awhile.
Cancels the effect of the alcohol.
Decreases blood alcohol content.
Increases blood alcohol content.
Has no effect on blood alcohol content.