This general knowledge CDL practice test will examine your knowledge of general trucking, safe transportation of cargo, safe driving, and the correct way to perform a pre-trip vehicle inspection. In order to receive your CDL, it is required that you pass the state’s official CDL General Knowledge exam.
If you have to pull off the road and stop at the side, you should turn on...?

Question 1 of 30

If your vehicle is equipped with braking retarders, you should not use them...?

Question 2 of 30

You should hold the steering wheel firmly when driving with your hands in which of these clock positions?

Question 3 of 30

The best vision of where you are going when reversing is obtained by...?

Question 4 of 30

Once the brakes are applied to a heavy vehicle traveling at 55 mph on dry pavement, it will take around how long to stop?

Question 5 of 30

The average perception time (time taken to identify a hazard) for an alert driver is one and three-quarter seconds. At 55 mph, how far will you travel in this time?

Question 6 of 30

Before you reverse, you should...?

Question 7 of 30

As you drive, you should be looking ahead to the place where you will be in...?

Question 8 of 30

If your vehicle has curved (also called convex, fisheye, spot, bugeye) mirrors, you must remember that objects will appear...?

Question 9 of 30

When reversing, you should always try to use...?

Question 10 of 30

In city driving, you should be planning ahead for a distance of about...?

Question 11 of 30

If you change gear according to your engine speed, you should monitor your...?

Question 12 of 30

When descending a hill, you should usually shift down into...?

Question 13 of 30

When passing another vehicle, pedestrian or bicyclist, you should assume that they don't see you...?

Question 14 of 30

The total minimum distance your vehicle will travel between a hazard appearing and coming to a complete stop from 55 mph in ideal conditions is...?

Question 15 of 30

In heavy vehicles with manual transmissions which require double clutching, which of the should you do first when shifting gears?

Question 16 of 30

On a manual vehicle, when you apply the brakes you should push the clutch in...?

Question 17 of 30

When you park a large vehicle, try to leave it so that when you leave you will...?

Question 18 of 30

If your vehicle is equipped with braking retarders, you should switch them off...?

Question 19 of 30

If you are about to slow down, you should warn drivers behind by...?

Question 20 of 30

You should signal other drivers to pass...?

Question 21 of 30

You must place a warning device over the brow of a hill or around a curve if you are stopped and a person coming from that direction would not have a clear view of your vehicle from how far away?

Question 22 of 30

How long does it take the average alert driver to hit the brakes once s/he has identified a hazard?

Question 23 of 30

If you are forced to stop on a road or the shoulder, you must deploy your emergency warning devices within what time of stopping?

Question 24 of 30

If your vehicle is of a type which requires a convex mirror on the front of the vehicle, it must be adjusted so you can see all points 1 foot in front of the vehicle to a horizontal line how far above the road?

Question 25 of 30

On a one way or divided highway, warning devices should be placed at what intervals towards the approaching traffic?

Question 26 of 30

Multispeed rear axles and auxiliary transmissions are usually controlled via...?

Question 27 of 30

When making a lane change, you should use your mirrors...?

Question 28 of 30

When making a turn, you should turn off your signal...?

Question 29 of 30

When driving at highway speed, you should be planning ahead for about...?

Question 30 of 30



What Are the Requirements?

There are several federally mandated requirements that you will have to meet before being issued a CDL. These requirements were put in place to protect not only you the applicant but to others as well that will be sharing the roadway with you. • You must hold a commercial learner’s permit for no less than 14 days. • You must be able to provide a commercial vehicle of the same type in which you plan to test with. • You must take and pass a three-part CDL test which includes vehicle inspection, basic controls test, and a road test. • Additionally, to get a commercial learner’s permit, you will need to obtain a driving record and a medical examination. There are three types of CDL classes that determine the type of vehicle you may drive and how much you may tow. A Class A CDL class allows you to operate a vehicle with a GCWR of 26,001 if the vehicle you tow weighs more than 10,000 and a Class B CDL allows you to operate a vehicle with a GVWR of 26,001 or more pounds or operate any vehicle towing another vehicle that weighs less than 10,000 GVWR. With a Class C CDL, you can operate a Class C vehicle that transports hazardous materials.