Ace Your DMV Written Test with our Guaranteed Cheat Sheet.

Cheat Sheet

Maryland CDL Permit Test - Combination

Number of questions: 20
Passing score: 16
Directions: All applicants who are applying for a Class A CDL should be prepared to take the Combination test. This test covers information found in Section 6 of the Maryland Commercial Driver License Manual. Section 6 provides the information needed to safely operate tractor-trailers, doubles, triples, and straight trucks with trailers. The test is made up of 20 multiple-choice and true/false questions, and applicants will need to correctly answer a minimum of 16 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
You have made error so far
Passing grade —
4 or fewer errors
advertising
1.

When braking with ABS, you should:

Push the brake pedal harder than usual.
Push the brake pedal as you normally would.
Push the brake pedal more lightly than usual.
2.

Before a drive, ensure that air flows to all trailers by:

Opening the rear shut-off valves and listening for escaping air.
Closing the rear shut-off valves and listening for escaping air.
Disconnecting air supply lines and listening for escaping air.
Rolling each trailer down a hill and testing the brakes.
3.

Emergency air lines are often coded with the color:

Green.
Orange.
Yellow.
Red.
4.

If color-coded, which color is used to identify emergency, or supply, lines?

White
Yellow
Red
5.

The service air line is attached to the:

Relay valves.
Supply line.
Emergency air line.
Steering wheel.
6.

When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

One second
Two seconds
Three seconds
Four seconds
7.

The tractor protection valve:

Ensures that oil adequately lubricates the engine.
Protects the tractor from exceeding a set speed.
Keeps air in the truck braking system if the trailer develops a leak.
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