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Drivers who want to drive combination vehicles must pass the combination vehicles test. The New Jersey CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the New Jersey CDL Manual. Take this practice test now to prepare for the actual NJ CDL combination test!
1. Hanging meat in a refrigerated truck can be:
a very stable load if properly distributed.
a very unstable load with a high center of gravity.
a very stable load with a low center of gravity.
a very unstable load with a low center of gravity.
2. What is a pull up when referring to truck driving?
A specific maneuver used to decelerate smoothly in the exit lane.
When a driver stops and pulls forward to get a better position.
Using the speedometer to know when to shift up.
A driving maneuver used to pull your vehicle over to the side of the road and stop.
3. You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
increase your speed to approximately 45 mph, and then apply release the brakes.
apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
4. Most heavy vehicles require ________ change gears.
triple shifting
single clutching
double clutching
double shifting
5. ABS:
allows you to brake harder.
replaces your normal brakes.
is an addition to your normal brakes.
should only be used on dry roads.
6. After the pre-trip inspection, drivers should inspect their cargo and its securing devices again within ________ after beginning the trip.
20 miles
25 miles
two hours
50 miles
7. Do NOT use the parking brakes:
when you leave your vehicle.
when you park for less than two hours.
if the brakes are very hot.
to test that they work.
8. You are checking the tractor-trailer connection to make sure it is safe and secure. The landing gear should be:
fully lowered.
raised slightly off the ground.
fully raised.
None of the above.
9. If you are being tailgated, you should:
turn on your taillights.
drive on the shoulder.
speed up.
try to let the other vehicle pass.
10. When more cargo is piled up in a truck, the center of gravity moves:
higher up from the road.
closer to the ground.
to the left side of the truck.
to the right side of the truck.
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NJ Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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