CDL - General Knowledge - Set 7

If you do not have a CB radio, what is the first thing you should do at an accident scene? 1) Clear the area. 2) Protect the accident scene. 3) Flag down help.

Protect the accident scene.

When driving in cold weather conditions, your tire tread should: 1) Have at least 4/32 inch tread on it. 2) Have at least 2/32 inch tread on it. 3) Provide enough traction to steer and push the vehicle through snow.

Provide enough traction to steer and push the vehicle through snow.

If your brakes get wet while driving on a rainy day, what can happen when you apply the brakes? 1) Hydroplaning. 2) Excessive brake wear. 3) Trailer Jackknife.

Trailer Jackknife.

Can federal inspectors inspect your truck or bus? 1) Yes, but they cannot place it out of service. 2) Yes, and they can place it out of service. 3) No.

Yes, and they can place it out of service.

Which of these is a danger of crossing railroad tracks on dirt roads? 1) The ground underneath the tracks may not be stable. 2) You could get hung up halfway across the tracks. 3) Your tires could sink into the dirt and not cross the tracks.

You could get hung up halfway across the tracks.

Stab braking should not be used on vehicles with: 1) Air brakes. 2) Spring brakes. 3) Anti-lock brakes.

Anti-lock brakes.

Containerized loads: 1) Should come with their own tie-down devices. 2) Are generally used for freight carried part way by rail or ship. 3) Do not need to be inspected or secured by the driver.

Are generally used for freight carried part way by rail or ship.

When a doctor prescribes medication for you and you know you will be driving, you should: 1) Take the medication, but stop taking it if you notice it is affecting your driving. 2) Take the medication, as well as other medication to keep you alert. 3) Ask the doctor if the medication will affect your ability to drive.

Ask the doctor if the medication will affect your ability to drive.

A key principle to remember about loading cargo is to keep the load: 1) To the front. 2) To the rear. 3) Balanced in the cargo area.

Balanced in the cargo area.

When driving on grades, which of these is the best choice for a safe speed? 1) If you have a light load, you can go faster than those with a heavy load. 2) Based on your vehicle and it's cargo, select a speed that is safe within the posted limit. 3) Follow the vehicle in front of you.

Based on your vehicle and it's cargo, select a speed that is safe within the posted limit.

Which of these is NOT required knowledge for drivers needing HAZMAT endorsement? 1) When to use placards. 2) Which products can be loaded together. 3) Basic chemistry.

Basic chemistry.

Which of the following cannot be checked at the same time: 1) Headlights, brake lights, and clearance lights. 2) Brake lights, flashers, and turn signals. 3) Brake lights, turn signals, and clearance lights.

Brake lights, flashers, and turn signals.

You should schedule your driving: 1) Between the hours of 4 am and 6 pm. 2) Between the hours of 10 am and midnight. 3) For the hours you are normally awake.

For the hours you are normally awake.

Trucks and buses are subject to certain laws, restrictions, and regulations. Which of these statements is true? 1) County and city laws do not apply to trucks and buses engaged in interstate commerce. 2) Federal regulations apply only to trucks and buses driven at least 50 miles on a trip. 3) Laws and restrictions can vary from place and place.

Laws and restrictions can vary from place and place.

When you are passing another vehicle, pedestrian, or bicyclist you should assume that they: 1) See you. 2) Will move out of your lane of traffic. 3) May move into your traffic lane.

May move into your traffic lane.