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General Knowledge Practice Test
General Knowledge Exam
GENERAL KNOWLEDGE KEY FACTS
1. There are three types of vehicle inspection; pre-trip, enroute, and after-trip.
2. Items inspected enroute should include tires, brakes, and cargo securement.
3. Mismatched tire size should not be used on the same vehicle.
4. Radial and bias ply tires should not be used on the same vehicle.
5. Brake shoes or pads should not have oil, grease, or brake fluid on them.
6. If one fourth of a leaf spring is missing or broken it is illegal to drive the vehicle.
7. One leaf of a spring, broken or missing is enough to make a vehicle dangerous.
8. Steering wheels are not allowed to have more than ten degrees of play.
9. If there are exhaust leaks or steering fluid leaks they should be fixed before driving.
10. Required emergency equipment includes a fire extinguisher, warning devices, and spare electrical fuses.
11. Inspection under the hood includes oil level, the condition of the belts, hoses, and damaged electrical wiring.
12. Rough acceleration causes mechanical damage.
13. When starting out on a uphill grade, keep the vehicle from rolling back by using the parking brake.
14. Backing is always dangerous, should be done towards the drivers side and a helper used, if possible.
15. Keep both hands on the steering wheel on opposite sides.
16. Use mirrors to check on tires, other traffic when merging and the trailer in turns.
17. Remember there are blind spots that a mirror can't show.
18. Tachometers can be used to help with shifting and double clutching.
19. Turn signals should be used early.
20. Down shift before entering curves.
21. Retarders are to slow the vehicle and reduce brake wear.
22. If traction in poor, a retarder can cause skidding.
23. A driver should be looking 12-15 seconds ahead or about a quarter mile ahead.
24. When passing, tap your horn, assume the other driver doesn't see you and drive to avoid a crash.
25. Headlights should be on whenever visibility is reduced.
26. Drivers should flash their brake lights to warn others when you must slow down or stop for something ahead.
27. Warning devices are placed 10 feet, 100 feet, and 200 feet to the rear on a four lane divided highway.
28. When you are broken down, if a hill or curve prevents other drivers from being able to see you move the rearmost triangle 500 feet back.
29. When setting other warning devices, keep them between you and traffic.
30. Use the horn only when necessary, it startles other drivers.
31. A heavy vehicle going 55 mph on dry pavement needs the length of a football field to stop.
32. The heavier a vehicle and the faster it is going the greater the stopping distance.
33. Hydroplaning can occur at any speed. It is more likely with thin tires tread or low air pressure.
34. On slippery roads, slow down, gradually or stop as soon as it is safe, if on ice.
35. On wet roads reduce speed by one third or on snow by one half.
36. On slippery roads its takes longer to stop and is harder to turn without skidding, therefore turn and slow down as gently as possible.
37. When in traffic, driving the same speed as traffic is safest, if not an illegal speed.
38. At 35 mph a 40 foot vehicle needs 4 seconds space between it and the vehicle ahead, under good conditions.
39. A vehicles height changes with its weights.
40. When being tailgated you should increase your following distance.
41. When turning right from one two-lane street to another two-lane street turn wide as you complete the turn.
42. When turning left from one two-lane street to another two-lane street, begin turning half way through the intersection.
43. If there are two left turn lanes use the one on the right to keep traffic on your left side.
44. When entering crossing traffic, remember how large a gap is needed for a heavy vehicle.
45. High beams should be used when safe and legal to do so.
46. Drive slowly enough at night to stop within range of your headlights.
47. When driving check tires every three hours or 150 miles.
48. When driving in hot weather check tires every two hours or 100 miles.
49. Never remove a hot radiator cap.
50. In hot weather be extra careful of oil level, fan belt tightness and avoid high speeds.
51. To dry brakes apply gentle brake pressure for a short distance while driving.
52. Brake fade is usually generally caused by hot brakes.
53. When going down long downhill grades, use a light steady pressure on the brakes.
54. Newer trucks should go down long downhill grades in a gear lower than they came up.
55. Escape ramps are designed to prevent damage to a vehicle.
56. When driving in work zones, slow down, use your flashers and warn drivers behind you with your brake lights.
57. When using a curbed downhill exit ramp slow down before the curve.
58. A red triangle with an orange center marks a slow moving vehicle.
59. In an emergency you can almost always turn quicker than you can stop.
60. If you leave the road, avoid braking until your speed is under 20 mph.
61. When steering to avoid a crash, turn no more than is needed to clear what is in your way and do not apply the brakes when turning.
62. If an oncoming driver drifts into your lane steer to the right.
63. Controlled braking is used to keep a vehicle in a straight line.
64. If you run onto the shoulder, try to stop before coming back on the highway.
65. If the wheels are skidding when braking you can not control the vehicle.
66. Counter steering is turning the wheel back in the other direction after steering to avoid an emergency.
67. If the brake pedal goes to the floor with hydraulic brakes, pump the pedal to try and bring the pressure back up.
68. If a tire blows out stay off the brake until you have slowed down.
69. If a rear wheel slips during acceleration let off the throttle.
70. A vehicle can skid if turned too sharply, over accelerated, or there is not enough weight on the front axle.
71. A drive wheel-braking skid can be corrected by stopping the braking, turning quickly and counter steering if needed.
72. In a front wheel skid a vehicle tends to move in a straight direction even if the wheels are turned.
73. At an accident scene keep the injured warm, stop heavy bleeding, move them if there is danger of fire or passing traffic. DON'T give first aid that you are not qualified to give.
74. Truck fires can be started by under inflated tires, loose fuel connections or electrical shorts.
75. Water won't put out an electrical fire or gasoline fire.
76. ABC fire extinguishers can be used on electrical fires, burning liquids and burning cloth.