1.of.3 - CDL Prep - App General Knowledge

Question 1

Question:
1. After starting the engine?

• The Oil Pressure gauge should take 3-5 minutes to rise to normal.
• The coolant temperature gauge should begin a gradual rise to normal.
• The engine temperature gage will take 3-5 minutes to rise to normal.

Answer 1

The coolant temperature gauge should begin a gradual rise to normal.

Question 2

Question:
2. When going down a long steep downgrade, you should always?

• Use controlled braking.
• Brake when you exceed safe speed by 5 mph.
• Use the braking effect of the engine.

Answer 2

Use the braking effect of the engine.

Question 3

Question:
3. What is true about bad weather and driving conditions?

• Driving condition became more dangerous when temperature arises above freezing.
• The road is more slippery when the rain continues than when rain begins.
• When the temperature drops, the bridges freeze the road.

Answer 3

When the temperature drops, the bridges freeze the road.

Question 4

Question:
4. If you do not have a CB-Radio, what procedure should you follow on an accident scene?

• Care for the injured person.
• Protect the area.
• Notify the authorities.

Answer 4

Protect the area.

Question 5

Question:
5. Gross Vehicle Weight (GVW) means the following:

• Both
• Total weight of a single vehicle plus its load.
• Total weight of a single vehicle.

Answer 5

Total weight of a single vehicle plus its load.

Question 6

Question:
6. Brake drums (or discs) must not have cracks longer than ____ the width of the friction area?

• 1/10
• 1/3
• 1/2

Answer 6

1/2

Question 7

Question:
7. Drivers of trucks and tractor-trailers with cargo must check that the cargo is well secured within the first ____ miles of the trip?

• 10
• 25
• 50

Answer 7

50

Question 8

Question:
8. Which of these statements about tires and hot weather driving is true?

• You should inspect your tires every two hours or every 100 miles when driving in very hot weather.
• The air pressure of a tire decreases as the temperature of the tire increases.
• If tires were to hot to touch, letting five or ten pounds of pressure out would cool them down.

Answer 8

You should inspect your tires every two hours or every 100 miles when driving in very hot weather.

Question 9

Question:
9. Which of these is correct about emergency or evasive action?

• In order to turn quickly you must have a firm grip on the steering wheel.
• Stopping is always the sagest thing to do in a traffic emergency.
• You can stop more quickly than you can turn to miss obstacles.

Answer 9

In order to turn quickly you must have a firm grip on the steering wheel.

Question 10

Question:
10. The bridge formula?

• Permits less maximum axle weight for axles that are closer together.
• Permits less maximum axle weight for the axles that are far apart.
• Permits the same maximum axle weight for any axle.

Answer 10

Permits less maximum axle weight for axles that are closer together.

Question 11

Question:
11. You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin?
You should:

• Take your foot off the accelerator.
• Take your foot off the accelerator and apply the brakes.
• Try a lower gear.

Answer 11

Take your foot off the accelerator.

Question 12

Question:
12. To correct a drive wheel braking skid, you should?

• Stop breaking, turn quickly, then counter steer.
• Increase braking.
• Increase braking, turn quickly, and counter steer.

Answer 12

Stop breaking, turn quickly, then counter steer.

Question 13

Question:
13. If your vehicle catches fire while you are driving, you should?

• Increase your speed to put out the flames.
• Park in an open area.
• Park where a building or trees shelter your vehicle from the wind.

Answer 13

Park in an open area.

Question 14

Question:
14. Medicine used to treat the common cold?

• May still be used while driving if you use half of a regular does.
• Should only be used when driving at daytime.
• Often makes you sleepy and should not be used while driving.

Answer 14

Often makes you sleepy and should not be used while driving.

Question 15

Question:
15. When driving at night, you should?

• Deem your lights within 300 feet of an oncoming vehicle.
• Look to the left side of the road when a vehicle is coming toward you.
• Adjust your speed to keep your stopping distance within your sight distance.

Answer 15

Adjust your speed to keep your stopping distance within your sight distance.

Question 16

Question:
16. You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is most often the best action to take?

• Hard braking.
• Steer to the right.
• Steer onto the left shoulder.

Answer 16

Steer to the right.

Question 17

Question:
17. Which of these statements about double clutching and shifting it true?

• Double clutching should only be used with a heavy load.
• You can use the tachometer to tell you when to shift.
• Double clutching should not be used when the road is slippery.

Answer 17

You can use the tachometer to tell you when to shift.

Question 18

Question:
18. The value specified by the manufacturer as the loaded weight of a combination vehicle is?

• Gross Combination Weight.
• Gross Combination Weight Rating.
• Gross Vehicle Weight Rating.

Answer 18

Gross Combination Weight Rating.

Question 19

Question:
19. If you have a road emergency and must park on the shoulder, how soon should you put out your triangles?

• Within 10 minutes.
• Within 20 minutes.
• Within 15 minutes.

Answer 19

Within 10 minutes.

Question 20

Question:
20. You should try to park so that?

• You can pull forward when you leave.
• Your vehicle is parked by trees.
• Park along curb next to another vehicle.

Answer 20

You can pull forward when you leave.

Question 21

Question:
21. You are driving a 40-foot vehicle at 55 mph. The road is dry, and visibility is good. What is the least amount of space that you need to have in front of your vehicle?

• 5 seconds.
• 6 seconds.
• 4 seconds.

Answer 21

5 seconds.

Question 22

Question:
22. Which of these should you NOT do an emergency situation?

• You should brake in a way that keeps your vehicle in a straight line.
• You should avoid using the brakes until your speed is down to 20 mph.
• It is not important how you brake in an emergency situation.

Answer 22

It is not important how you brake in an emergency situation.

Question 23

Question:
23. You should wear a seat belt in a moving vehicle?

• Only when you are driving.
• All the time.
• Only when you are on a highway.

Answer 23

All the time.

Question 24

Question:
24. When driving at night, you should use your high beams when oncoming traffic is not within _____ feet?

• 400
• 300
• 500

Answer 24

500

Question 25

Question:
25. Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?

• Shifting into neutral will help to slow the vehicle.
• The parking brake will not work either because it is a part of the same hydraulic system.
• Pumping the brake pedal may bring the pressure up so you can stop the vehicle .

Answer 25

Pumping the brake pedal may bring the pressure up so you can stop the vehicle .

Question 26

Question:
26. Which of these statements about cold weather driving is true?

• An engine cannot overheat when the weather driving is true.
• Windshield washer antifreeze should be used.
• Exhaust system leaks are less dangerous in cold weather.

Answer 26

Windshield washer antifreeze should be used.

Question 27

Question:
27. When driving through the work zone?

• Watch for sharp pavement drop off.
• Turn on you parking lights.
• Reduce your speed only if workers are close to the roadway.

Answer 27

Watch for sharp pavement drop off.

Question 28

Question:
28. Which of these is true about proper use of a steering wheel?

• If you do not hold a wheel with both hands it could pull away from you.
• Only with an attempt of a difficult turn use both hands on the wheel.
• If you have reached a crushing speed on a highway you can drive with one hand.

Answer 28

If you do not hold a wheel with both hands it could pull away from you.

Question 29

Question:
29. You must keep the papers about hauling hazardous materials?

• In the glove compartment, which must be working.
• In the pouch of the driver door.
• Under the driver seat.

Answer 29

In the pouch of the driver door.

Question 30

Question:
30. Controlled braking?

• Involves locking the wheels for a short period of time.
• Is used to keep a vehicle in a straight line when braking.
• Can be used when you are turning sharply.

Answer 30

Is used to keep a vehicle in a straight line when braking.

Question 31

Question:
31. Perception distance is the distance your vehicle travels from the time?

• The brain tell the foot to push the brake pedal to time the foot responses.
• The eyes see a hazard to the time the brain knows that this is a hazard.
• Your eyes see a hazard to the time your foot pushes to the brake pedal.

Answer 31

The eyes see a hazard to the time the brain knows that this is a hazard.

Question 32

Question:
32. Which of these statements about rear-drive wheel braking skid is true?

• Front wheels slide sideways to try to catch up with the rear wheels.
• On a vehicle with a trailer, the trailer can push the towing vehicle sideways.
• Locked wheels usually have more traction than rolling wheels.

Answer 32

On a vehicle with a trailer, the trailer can push the towing vehicle sideways.

Question 33

Question:
33. You may hang up on a railroad track if?

• You try to shift gear when crossing
• The tracks have a steep approach.
• If you cross the double tracks too slowly.

Answer 33

The tracks have a steep approach.

Question 34

Question:
34. Can state inspectors inspect your truck or bus?

• Yes, but cannot put you out of service.
• No.
• Yes and they can put you out of service if unsafe.

Answer 34

Yes and they can put you out of service if unsafe.

Question 35

Question:
35. When you are starting to move up a hill from a stop?

• Release the parking brakes as you apply engine power.
• Keep the trailer brake hand valve applied until you reach 20 mph.
• Engage the clutch and accelerate quickly.

Answer 35

Release the parking brakes as you apply engine power.

Question 36

Question:
36. Which of these would NOT help if the windshield is covered with ice?

• Windshield defroster.
• Windshield scraper.
• Dust brush.

Answer 36

Dust brush.

Question 37

Question:
37. Which of these is a good thing to do when steering to avoid a crash?

• Don’t turn any more than needed to clear what is in your way.
• Steer with one hand so that you can turn the wheel more quickly.
• Apply the brakes while turning.

Answer 37

Don’t turn any more than needed to clear what is in your way.

Question 38

Question:
38. The driver’s manual suggests several thing to do when you pass a vehicle. Which of these is NOT on of them?

• Lightly tap your horn.
• Assume that another driver does not see you.
• At night, turn your high beams before you start to pass and leave them on until you have a completely passed the vehicle.

Answer 38

At night, turn your high beams before you start to pass and leave them on until you have a completely passed the vehicle.

Question 39

Question:
39. Your vehicle will be put out of service if _____ or more leaves in nay leaf spring are missing.

• 1/3
• 1/4
• 1/2

Answer 39

1/4

Question 40

Question:
40. If straight vehicle (not a trailer or articulation) goes into a front-wheel skid, it will?

• Go straight ahead even if the steering wheel is turned.
• Slide sideways an spin out.
• Go straight ahead but will turn if you turn if you turn the steering wheel.

Answer 40

Go straight ahead even if the steering wheel is turned.

Question 41

Question:
41. You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion up the grade?

• Keep the clutch slipping while slowly accelerating.
• Let the vehicle roll backwards a few feet before you engage the clutch but turn the wheel so that the back moves away from the roadway.
• Use the parking brake to hold the vehicle until the clutch engages.

Answer 41

Use the parking brake to hold the vehicle until the clutch engages.

Question 42

Question:
42. Which of these is true about radiator shutters and the winter front during winter driving?

• Ice should be removed from the radiator shutter.
• The engine may overheat if winter-front left open.
• The winter front should be closed tightly.

Answer 42

Ice should be removed from the radiator shutter.

Question 43

Question:
43. Which of these is not required knowledge for drivers seeking a hazardous material endorsement?

• Which products can be loaded together.
• Basic Chemistry.
• When to use the placards.

Answer 43

Basic Chemistry.

Question 44

Question:
44. Which of these statements about backing a heavy vehicle is true?

• Helpers should be out of the driver’s sight and use only voice signals to communicate with the driver.
• It is safer to back towards the right side of the vehicle than toward the drivers side.
• You should avoid backing whenever you can.

Answer 44

You should avoid backing whenever you can.

Question 45

Question:
45. You should lightly apply your brakes to flash the brake lights if?

• You are about to exit the road and need to slow down.
• A police care is approaching you from the other direction.
• A driver tailgates your vehicle.

Answer 45

You are about to exit the road and need to slow down.

Question 46

Question:
46. There are two types of jackknife, they are.

• Trailer
• Both Trailer and Tractor.
• Tractor.

Answer 46

Both Trailer and Tractor.

Question 47

Question:
47. Which of these is the most important thing to remember about emergency braking?

• Never do it without downshifting first.
• Disconnecting the steering axle brakes will keep your vehicle in a straight-line during emergency braking.
• If the wheels are skidding, you cannot control your vehicle.

Answer 47

If the wheels are skidding, you cannot control your vehicle.

Question 48

Question:
48. What should you do if a car coming toward you at night keeps its high beams on?

• Look to the right lane or edge marking of the road.
• Flash your high beams quickly at other driver.
• Slow down and look straight ahead in your lane.

Answer 48

Look to the right lane or edge marking of the road.

Question 49

Question:
49. Which of these statements about overhead clearance is true?

• The weight of a vehicle changes height.
• If the road surface causes your vehicle to tilt toward objects at the edge of the road, you should drive close to the shoulder.
• You should assume posted clearance sign correct.

Answer 49

The weight of a vehicle changes height.

Question 50

Question:
50. You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?

• Rust around wheel nuts may mean that they are loose.
• Mismatch lock rings can be used on the same vehicle.
• A Vehicle can be safely driven with one missing lug not on a wheel.

Answer 50

Rust around wheel nuts may mean that they are loose.

Question 51

Question:
51. Which of these is true about mirror adjusting?

• The mirrors could be adjusted correctly even if the trailer is not straight.
• You should adjust your mirrors while your are driving.
• You should adjust your mirrors before starting the trip.

Answer 51

You should adjust your mirrors before starting the trip.

Question 52

Question:
52. Should brake adjustment be checked often?

• It depends on how the brakes are.
• Yes, because the brakes can get out of adjustment when they are used a lot.
• No, because the other brakes will make up for the air brakes when they are out of adjustment.

Answer 52

Yes, because the brakes can get out of adjustment when they are used a lot.

Question 53

Question:
53. Which of the following statements about speed management is true?

• If you double your speed, stopping distance will be increased by 4 times.
• Empty truck and loaded trucks will have the same stopping distance.
• If you double your speed, stopping distance will double.

Answer 53

If you double your speed, stopping distance will be increased by 4 times.

Question 54

Question:
54. How much space in front of you is needed while driving on highway?

• 1 second for each 10 feet of vehicle length.
• 1 second for each 20 feet of vehicle length.
• 1 second for each 30 feet of vehicle length.

Answer 54

1 second for each 10 feet of vehicle length.

Question 55

Start on #6 - - - iPad photo
Question:
55. Which of these is true about tires and hot weather?