Knowledge Test Class A - South Carolina Cdl

1 . Empty trucks often take longer to stop than fully-loaded trucks.

True False Click Here Full Cheat Sheet

2 . A thin layer of ice that forms on road surfaces is called:

White ice. Black ice. Green ice. Blue ice. Take a FREE Practice Test Now

3 . To help your vehicle be seen by others:

Your headlights should be clean. Your headlights should be turned off during the day. Your headlights should be covered with grease. Your headlights should be used, but only in the rain. Take a FREE Practice Test Now

4 . During a basic vehicle control skills test, you may be asked to:

Swerve to avoid a hazard. Parallel park. Drive straight into a parking space. Take a FREE Practice Test Now

5 . An applicant hoping to be a city bus driver needs a passenger endorsement.

True False Click Here Full Cheat Sheet

6 . What is a danger of rolling back when you start to accelerate?

The transmission may be damaged. The truck is not made to go backwards. You may hit a vehicle behind you. You may lose your position in traffic. Take a FREE Practice Test Now

7 . When inspecting the windshield before a trip, a person should do all the following, except:

Remove and sharpen the wiper blades. Check the windshield wipers for proper spring tension. Check the wiper blades for damage. Take a FREE Practice Test Now

8 . Which of the following is not an indication of damaged brakes?

Cracked drums Shoes with oil or grease on them Shoes worn thinly Pads free of oil or grease Take a FREE Practice Test Now

9 . You are especially likely to encounter strong winds when:

Coming out of tunnels. Going into tunnels. Driving on shoulders. Click Here Full Cheat Sheet

10 . When taking the basic vehicle control skills test, failing to exit your vehicle properly during any exercise will result in:

Failure of only that exercise. An extra point against your final score. Automatic failure of the basic vehicle control skills test. Take a FREE Practice Test Now

11 . When driving on a long downhill slope, you should brake by:

Only using the brakes. Mostly using the brakes and occasionally downshifting. Downshifting and then using the brakes. Take a FREE Practice Test Now

12 . While driving a vehicle, if an unusual noise or feeling occurs, the driver should:

Assume it is not a concern and continue driving. Hope the vehicle makes it until it is switched to another driver. Check the vehicle to determine the proper solutions. Drive on the shoulder. Take a FREE Practice Test Now

13 . If planning to drive a vehicle placarded for hazardous materials, you do not need a hazardous materials endorsement.

True False Click Here Full Cheat Sheet

14 . If being tailgated, you should:

Drive in the left lane. Drive in the right lane. Speed up. Drive on the shoulder. Take a FREE Practice Test Now

15 . Air tank drains should:

Not be used by the driver. Only be used when it is wet outside. Be used to drain the tanks completely. Take a FREE Practice Test Now

16 . Mismatched tire sizes are acceptable on the rear axles.

True False Take a FREE Practice Test Now

17 . A vehicle equipped with an Anti-Lock Braking System (ABS) uses a ____ light to warn that the system is not working properly.

Green Yellow Orange White Click Here Full Cheat Sheet

18 . What happens if you don’t pass the air brakes endorsement test?

You won’t be permitted to drive a vehicle with air brakes. Your CDL will include an air brake endorsement marked with an asterisk. Your CDL will be invalid. Take a FREE Practice Test Now

19 . What is the average driver’s reaction time?

1/16 of a second 1/8 of a second 3/4 of a second Take a FREE Practice Test Now

20 . What should happen if the air pressure in the air brake system tanks falls below 60 psi?

A warning light should come on. Lights should flash on the outside of the vehicle. A message should appear on the control panel. The vehicle should stop. Take a FREE Practice Test Now

21 . When approaching a railroad crossing:

You will likely be able to outdrive a train. You should not rely only on warning signals. You should roll a window down to listen for an approaching train. You should only worry about the track closest to your vehicle. Click Here Full Cheat Sheet

22 . How long is a CDL valid?

One year Two years Four years Five years Take a FREE Practice Test Now

23 . If you plan to transport hazardous materials, you must pass which endorsement test?

Tank Hazardous materials Passengers Take a FREE Practice Test Now

24 . Stopping distance can be affected by:

Speed. Engine oil. Time of day. Traffic. Take a FREE Practice Test Now

25 . When carrying a wide load, a driver should:

Drive as fast as possible. Obtain special permits and follow special rules, such as driving only during certain times. Honk at other drivers to get them to move from the nearest lane. Drive on the shoulder. Click Here Full Cheat Sheet

26 . The Transportation Security Administration (TSA) can conduct a threat assessment for applicants of a hazardous materials endorsement.

True False Take a FREE Practice Test Now

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

27 . During a pre-trip inspection, belts in the engine compartment should be:

Loosened. Checked for tightness. Inspected only if they seem frayed. Left alone and not inspected. Take a FREE Practice Test Now

28 . While driving, you should:

Develop plans to get out of any dangerous situation that could arise. Enjoy the scenery. Never look at the mirrors. Focus on your own driving and not worry about other drivers. Take a FREE Practice Test Now

29 . In very hot weather, tires may catch fire.

True False Click Here Full Cheat Sheet

30 . A driver should ensure that:

The truck is overloaded. The truck is properly loaded. The cargo is mostly in the front of the trailer. Take a FREE Practice Test Now

31 . The faster you drive:

The shorter your stopping distance will be. The longer your stopping distance will be. The easier it will be to stop your vehicle. Take a FREE Practice Test Now

32 . Air tank drains:

Allow rain water to enter air tanks. Are used to drain water and oil from air tanks. Should never be opened. Must remain open while driving. Take a FREE Practice Test Now

33 . If your coolant level is found to be low, you should:

Drain the radiator. Add more coolant. Add engine oil. Tighten the belts. Click Here Full Cheat Sheet

34 . In very hot weather, the air pressure in tires may decrease.

True False Take a FREE Practice Test Now

35 . Alcohol begins to affect the body:

After only one drink. After several drinks have been consumed. At the legal limit. Take a FREE Practice Test Now

36 . When you must travel down a hill, when should you switch into a lower gear?

As you begin to move downward As you go downhill and pick up speed Before you start going downhill Take a FREE Practice Test Now

37 . What is the purpose of a vehicle inspection report?

It tells the motor carrier about problems that may need to be fixed. It ensures that the vehicle is inspected regularly. It keeps drivers accountable for inspecting their vehicles. It provides a plan for the next five trips. Click Here Full Cheat Sheet

38 . An applicant may label parts of the vehicle that will be covered in the pre-trip inspection.

True False Take a FREE Practice Test Now

39 . A CDL is valid for seven years.

True False Take a FREE Practice Test Now

40 . For a first railroad crossing violation, a driver will be disqualified for:

At least one week. At least one month. At least 60 days. Take a FREE Practice Test Now

41 . When driving in fog, you should:

Use your horn. Use the low beam lights. Use the high beam lights. Use the heater. Click Here Full Cheat Sheet

42 . When backing in an unfamiliar area, using driver-side backing is:

Encouraged so you can see better. Discouraged. You should look to both sides equally. Only recommended if it is raining. Illegal when transporting hazardous materials. Take a FREE Practice Test Now

43 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven Seven to eight Eight to nine Take a FREE Practice Test Now

44 . When loading a trailer, the heaviest cargo should be placed:

On top of the lightest parts of the cargo. Under the lightest parts of the cargo. At the rear of the trailer. Take a FREE Practice Test Now

45 . A driver should always:

Stay in one lane. Have an emergency plan. Stay in the left lane. Travel faster than the speed limit. Click Here Full Cheat Sheet

46 . If you have more than one license:

You likely won’t be caught. You should not tell anyone. You may get caught through the states' shared computer network. Take a FREE Practice Test Now

47 . All bus driver applicants must pass the test for a ____ endorsement.

Passenger Tank Hazardous materials Take a FREE Practice Test Now

48 . If your tractor is equipped with ABS but your trailer is not, the ABS:

Will not be effective. Will still improve your steering control. Will make jackknifing easier. Will allow others to see when you brake. Take a FREE Practice Test Now

49 . Pressing and releasing a brake pedal unnecessarily can:

Release air faster than it can be replaced. Add more air to the braking system. Make the brake pedal more sensitive. Create a loud noise. Click Here Full Cheat Sheet

50 . If you are being tailgated, you should:

Drive on the shoulder. Pull off the roadway. Drive faster. Allow the vehicle to pass. Take a FREE Practice Test Now