General Knowledge (Drivingtests.org)

1. Question

What can you do at an accident scene to help avoid another accident?

Set out warning devices to keep other vehicles from running into the accident scene.
Leave your vehicle, do nothing, and get to higher ground.
Stay in your vehicle and do nothing until help arrives.

2. Question

If you double your speed, how much more distance will it take to stop?

Twice as much.
Three times as much.
Four times as much.

3. Question

If you are confronted by an aggressive driver, you should:

Avoid eye contact.
Call the police from your cell phone if you can do it safely.
Ignore rude gestures and refuse to react negatively.
All of the above.

4. Question

How many tie-downs are required for a 20-foot load?

1
2
4

5. Question

Which of the following is a key steering component?

Gear box
Torque rod
Bearing plate

6. Question

Do empty trucks have the BEST braking?

No
Yes, but only at the posted speed.
Yes, but only trucks with air breaks.

7. Question

Which of the following can cause a vehicle fire?

Spilled fuel that is cleaned up quickly and properly.
Flammable cargo with proper ventilation.
Short circuits and loose connections.

8. Question

Always try to back toward the driver’s side because:

You can see better, watching the vehicle's rear out the side window.
Your truck will naturally pull toward the driver's side.
Both of these are correct.

9. Question

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

3 seconds
4 seconds
6 seconds

10. Question

Which of the following are likely to get stuck at a railroad crossing?

Car carrier
Lowboy
Moving van
All of these can get stuck.

11. Question

On wet roads, you should reduce your speed by:

one-quarter.
one-half.
one-third.

12. Question

For how long will you lose your CDL driving privileges if you are convicted of a second DUI offense in a CMV?

1 year minimum.
5 years minimum.
For Life

13. Question

Why should you cover cargo?

To protect individuals from any spilled cargo.
Because many states require it.
To protect your cargo from bad weather.
For all of these reasons.

14. Question

Total stopping distance equals:

Perception distance + reaction distance + braking distance.
Braking distance + stopping distance.
Reaction distance + braking distance.

15. Question

Which of the following statements about retarders is correct?

Retarders help slow a vehicle, reducing the need for braking.
When your drive wheels have poor traction, the retarder may cause them to skid.
You should turn the retarder off whenever the road is wet, icy, or snow-covered.
All of these statements are correct.

16. Question

How long does it take a typical tractor-trailer to clear a double railroad track?

12 seconds.
19 seconds.
More than 15 seconds.

17. Question

Which of the following is NOT something you should check during a trip?

Mirrors
Cargo and cargo covers.
Tires
Text messages

18. Question

Before a trip, to prevent drowsiness, you should:

Schedule trips for the daytime hours.
Avoid medications that cause drowsiness.
Get 8–9 hours of sleep.
All of these are correct.

19. Question

You should keep the starter switch key in your pocket while you are performing the pre-trip inspection because:

It could damage the starting mechanism.
Someone could start and move the truck.
Someone could steal the truck.

20. Question

An anti-lock braking system (ABS) will:

Let you drive faster.
Keep your brakes from locking when you brake hard.
Shorten your stopping distance.

21. Question

Which is NOT one of the four skill areas that operating a commercial vehicle requires?

Backing safely
Accelerating
Steering
First-aid certification

22. Question

When beginning a long downgrade, which of the following should influence your choice of speed?

The road conditions.
The steepness of the grade.
The total weight of the vehicle and its cargo.
All of these are correct.

23. Question

The most important hand signal you should agree on with a helper is:

“Go Faster.”
“Crank the tunes.”
“Go.”
“Stop.”

24. Question

Truck drivers are in an ideal position to spot and report human trafficking occurring at truck stops and rest areas. Which of the following trafficking red flags should you look for?

An individual not in control of his or her own travel documents, such as a passport or driver's license.
An individual who lacks knowledge of his or her location or community.
An individual who seems tense, afraid, nervous, or submissive.
All of these are correct.

25. Question

Starting the engine and inspecting the cab involves each of the following tasks, EXCEPT:

Checking the air pressure gauge.
Starting the engine, then listening for unusual noises.
Starting the engine, then putting the gearshift in neutral.
Checking the transmission controls.

26. Question

You should inspect wheel bearing seals for:

tears.
leaks.
broken leaf springs.
twisted axles.

27. Question

On which of the following types of fires should you NOT use a B:C fire extinguisher?

Grease
Electrical
Wood
Gasoline

28. Question

The minimum tread depth for front tires is:

1/2 inch.
1/32 inch.
4/32 inch.

29. Question

If you feel drowsy while driving, what should you do?

Drink a cup of coffee.
Open the windows for some fresh air.
Pull off the road and get some sleep.

30. Question

How can you determine if your vehicle is equipped with an anti-lock braking system (ABS)?

Look for wheel speed sensor wires that are coming from the rear of your brakes.
Check if your vehicle was manufactured after March 1, 1998. (Such vehicles are required to have the panel light.)
Check for a yellow ABS malfunction lamp on the instrument panel.
All of these can work.

31. Question

You don’t want to be a distracted driver, so you:

Smoke, eat, and drink on straight portions of the road.
Have all your emotionally difficult conversations in the first hour of driving.
Turn off your cell phone until you reach your destination.

32. Question

To transport cargo safely, which of these are you NOT responsible for?

Inspecting the cargo.
Making sure that cargo is properly secured.
Ensuring the freshness of sealed cargo.

33. Question

It has just reached freezing. Which of the following areas may be slippery?

A wet-looking road.
A shaded area.
A bridge.
All of these may be slippery.

34. Question

Which of the following should you NOT do if you experience a tire failure?

Stay off the brake pedal.
Be aware that a tire has failed.
Immediately brake hard.
Hold the steering wheel firmly.

35. Question

Letting the air out of hot tires:

Is a good idea because the extra pressure will be relieved.
Will have no effect at all.
Will cool them down. You will be able to continue your journey sooner.
Is a bad idea because when the tires cool off, the pressure will be too low.

36. Question

What might happen if you swing wide to the left before you turn right?

Someone might try to pass you on your left.
Someone might try to pass you on your right.
You might damage your leaf springs.

37. Question

Where should you place your warning devices if you must stop on a one-way road or divided highway?

20 feet, 50 feet, and 100 feet toward approaching traffic.
10 feet, 100 feet, and 200 feet toward approaching traffic.
100 feet, 200 feet, and 300 feet toward approaching traffic.

38. Question

How far ahead should you look while driving?

7 to 12 seconds.
10 to 12 seconds.
12 to 15 seconds.

39. Question

During your pre-trip test, when examining hoses with the instructor, you need to look for:

frays in the water pump belt.
the location of the dipstick.
puddles on the ground.

40. Question

What is the best way to figure out how many seconds of following distance you have?

Wait until the vehicle ahead of you passes a shadow or landmark. Then start to count the seconds until you reach it.
Get 1/4 closer to the car in front of you, then back off again. Multiply how long this took you by four to give the following distance.
Use the stopwatch on your cell phone to determine how long it takes you to reach a mile marker after the car in front of you has passed it.

41. Question

Signs of distracted drivers include:

Drivers listening to overly loud music.
Vehicles exiting the roadway.
Drivers having conversations with passengers.

42. Question

Hazardous materials placards are:

signs on the outside of the vehicle that identify the hazard class of the cargo.
signs that warn the public to stay at least 1,000 feet away from the vehicle.
signs that help tax collectors determine how much to tax a hazardous cargo.

43. Question

What is the gross vehicle weight (GVW)?

The total weight of a single vehicle and its load.
The total weight of the vehicle, towed vehicles, and the load.
A vehicle's maximum weight rating, specified by its manufacturer.

44. Question

Which of these is NOT part of the basic method of shifting up?

Pushing in the clutch and shifting into a higher gear at the same time.
Releasing the clutch and pressing the accelerator at the same time.
Releasing the clutch.
Accelerating while pressing the clutch and turning toward the driver's side.

45. Question

In which of the following two situations should you downshift?

Starting up a hill and entering a curve.
Starting down a hill and entering a curve.
Starting down a hill and finishing a curve.

46. Question

When backing, it is important to use a helper:

Because you are providing a job for someone else.
Because you have blind spots.
Because people feel more comfortable when you do.

47. Question

If the engine is not overheated, is it completely safe to remove the radiator cap?

Yes.
Yes, as long as the radiator isn't damaged.
No.

48. Question

What is the definition of a hazard?

Something you can safely ignore.
Something you must stop for.
A road user or road condition that presents a possible danger

49. Question

What will help a drunk sober up?

A glass of water.
Time.
Fresh air.

50. Question

How can you start moving without rolling backward?

Apply the trailer brake hand valve.
Put on the parking brake when necessary.
Engage the clutch before removing your foot from the brake.
Do all these.