Click for the Exact questions on the MN DMV test. 99.2% pass rate

Click here for the full cheat sheet

Minnesota 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 two, three or four possible answer choices. Test questions come from the Minnesota Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Cargo, 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

During a trip, the ____ should be open.

Rear service line shut-off valve
Rear supply line shut-off valve
Inner shut-off valves

You can confirm that a tractor protection valve is working properly by:

Disconnecting all glad hands.
Opening all of the vehicle's shut-off valves.
Releasing air with the brake pedal and waiting for the emergency signal to activate.

If a load is 10 feet long, it should be secured by at least ____ tie-down(s).


When traveling down a steep downgrade:

The air brakes should be used.
Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
The vehicle should be continually downshifted in the place of using the brakes.
The vehicle should be driven on the shoulder.

An example of required emergency equipment is:

A spare electrical fuse.
A loud horn.
A battery-operated flashlight.

During an inspection, slack adjusters on S-cam brakes should not move more than:

One foot.
One centimeter.
One inch.

If your vehicle is hydroplaning, you should:

Speed up.
Not apply the brakes.
Put the vehicle in reverse.
Turn the steering wheel as hard as possible.
Ace Your DMV Written Test
Get your Cheat Sheet Now!
Wait, before you go

Ace your DMV Written Test with our Guaranteed Cheat Sheet.

  • Cheat Sheets Save Time
  • Cheat Sheets pass on your first try