Maryland Combination Practice Test 2
35 questions covering combination content, drawn from the FMCSA-aligned CDL question pool and the Maryland Commercial Driver's License Manual (DL-151).
What this test covers
The Combination Vehicles knowledge test has 20 to 30 multiple-choice questions with an 80% passing score. Questions cover coupling and uncoupling tractor-trailers, rollover prevention, jackknife causes and prevention, off-tracking, braking with a trailer, air brake connections (glad hands), proper use of the trailer hand valve, weight distribution, and the specific inspection procedures for fifth wheels, kingpins, and trailer connections. This is a core test for anyone seeking a Class A CDL.
Sample Combination questions
Preview of what is on Practice Test 2. Unlock with Pro to take the full 35-question test.
What is off-tracking, and why is it important when driving a combination vehicle?
What is rearward amplification (the 'crack-the-whip' effect) in combination vehicles?
When changing lanes or steering to avoid an obstacle in a combination vehicle, you should: