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 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 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.

Turn over trailers.
Make loud noises.
Make trucks accelerate.
Make trucks decelerate.

One air line.
Two air lines.
Three air lines.
Four air lines.

Using the air brakes.
Using wheel chocks.
Parking near a wall.
Parking on a slight incline.

It is a square blue knob.
It is a triangular yellow knob.
It is an eight-sided red knob.
It is a circular orange knob.

Mississippi CDL Permit Test - Combination

The trailer hand valve should be used:

What can the “crack-the-whip” effect do?

A combination vehicle has:

If a parked trailer does not have spring brakes, you should keep the trailer from moving by:

Combination vehicles need extra space on the road because they:

Rollovers happen when:

What does the trailer air supply control look like?

Number of questions:	20
Passing score:	16

Drive more slowly than other commercial motor vehicles.
Are heavier than other commercial motor vehicles.
Need more space to turn and stop than other commercial motor vehicles.

Drivers turn too quickly.
Drivers turn too slowly.
It is raining.