CDL GENERAL KNOWLEDGE

  1. When preparing to do a pre-trip inspection you must check to see that the parking brakes are on and/or chocked. 

    A. True
    B. False
    A. True
  2. When getting in to start the engine and inspect inside the cab you must 

    A. Make sure the parking brake is on.
    B. Put gearshift in neutral (or park if automatic).
    C. Start engine and listen for unusual noises.
    D. All of the above.
    D. All of the above
  3. Look at the guages - the oil pressure gauge should come up to normal within how long after starting the engine?



    C. Seconds
  4. You should check the following for looseness, sticking, damage or improper settings:




    D. All of the above
  5. After inspecting mirrors and windshilds for cracks, dirt, illegal stickers, or other obstructions to your vision, you should:



    C. Clean and Adjust as necessary
  6. When checking lights you should:

    A. Make sure that the parking brake is set.
    B. Turn off the engine and take the key with you.
    C. Turn on the headlights and four way flashers.
    D. All of the above.
    D. All of the above
  7. What should wheel bearing seals be checked for?



    A. Hub oil level and no leaks
  8. How many red reflective triangles should you carry?




    D. 3
  9. How do you test hydraulic brakes for leaks?



    A. Pump the brake pedal three times, then apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
  10. Why put the starter switch key in your pocket during the pre-trip inspection?



    C. For your safety
  11. To avoid roll backs when you start, you should:




    C. Partly engage the clutch before you take your right foot off the brake
  12. What is the proper way to hold the steering wheel?



    A. Firmly with both hands on opposite sides of the wheel
  13. Why should you back toward the driver's side?



    A. A and B
  14. When backing, why is it important to use a helper?



    C. There are blind spots you can't see.
  15. What is the most important hand signal that you and the helper should agree on?




    B. Stop
  16. What are two special conditions where you should downshift?



    B. Before starting down a hill and before entering a curve
  17. When should you downshift automatic transmissions?




    A. When going down grades
  18. Retarders keep you from skidding where the road is slippery.

    A. True
    B. False
    B. False
  19. What are the two ways to know when to shift?



    A. Use engine speed (rpm) and use road speed (mph)
  20. How far ahead should you look?




    C. Most good drivers look 12 to 15 seconds ahead
  21. What are two main things to look
    for ahead?




    B. Traffic and road conditions
  22. What is your most important way to see
    the sides and rear?



    A. Checking your mirrors regulary
  23. What does "communicating"
    mean in safe driving?

    A. Letting other drivers know you're there to help prevent
    accidents.
    B. Using hand signals. 
    C. Driving a brightly colored vehicle.
    A. Letting other drivers know you're there to help preventaccidents.
  24. Where should your reflectors be placed when stopped on an undivided highway?



    C. Within 10 feet of the front or rear and 100 feet behind and ahead of the vehicle. 
  25. What three things add up to total
    stopping distance?

    A. Road conditions, reaction distance,
    and braking distance
    B. Perception distance, reaction distance, and braking distance 
    C. Braking distance, controlling
    speed, and reaction distance.
    B. Perception distance, reaction distance, and braking distance 
  26. If you go twice as fast, will your stopping distance increase by:




    C. Four times
  27. Empty trucks have the best braking.

    A. True
    B. False
    B. False
  28. What is hydroplaning?



    A. when the tires lose their contact with the road 
  29. What is black ice?



    C. A thin layer of ice clear enough that you can see the road underneath it.
  30. If the vehicle ahead of you is smaller than yours, it can probably:



    B. stop faster than you can.
  31. If you are driving a 30 foot vehicle at 55 mph, how many seconds of following distance should you allow?



    A. Four Seconds
  32. You should decrease your following
    distance if somebody is following you too closely.

    A. True
    B. False
    B. False
  33. If you swing wide to the left before
    turning right another driver may try to pass you on the right.

    A. True
    B. False
    A. True
  34. You should use low beams whenever you can.

    A. True
    B. False
    B. False
  35. What should you do before you drive if you are drowsy?




    D. None of the above.
    B. Get some sleep before you drive.
  36. What effects can wet brakes cause?



    A. Brakes can be weak or grab.
  37. How can you avoid wet brake problems?



    C. Slow down, shift to a low gear, gently put on the brakes. 
  38. You should let air out of hot tires so the pressure goes back to normal.

    A. True
    B. False
    B. False
  39. You can safely remove the radiator cap as long as the engine isn't overheated.

    A. True
    B. False
    B. False
  40. What factors determine your selection of "safe" speed when going down a long steep downgrade?

    A. Size of vehicle, traffic conditions, curves in the road.
    B. Conditions of brakes, radio bulletins and alertness of driver.
    C. Total weight of the vehicle, length of the grade, steepness, road conditions, and weather.
    C. Total weight of the vehicle, length of the grade, steepness, road conditions, and weather.
  41. Why should you be in the proper gear before starting down a hill?

    A. Because gravity can cause the speed of your vehicle to increase.
    B. Because you don't want to shift going down a hill.
    C. Because the clutch works better up a hill.
    A. Because gravity can cause the speed of your vehicle to increase.
  42. Describe the proper braking technique when going down a long steep downgrade.




    D. All of the above
  43. What is a hazard?



    B. Any road condition or other road user that is a possible danger.
  44. Why make emergency plans when you see a hazard?



    A. In order to protect yourself and others.
  45. Stopping is not always the safest thing to do in an emergency?

    A. True
    B. False
    A. True
  46. What are some advantages of going right instead of left around an obstacle?




    D. All of the above.
  47. What is an "escape ramp?"



    C. Ramps that are located a few miles from the top of a downgrade to help you stop.
  48. If a tire blows out you should put the brake on hard to stop quickly.

    A. True
    B. False
    B. False
  49. What are some things to do at an accident scene to prevent another accident?

    A. Try to get your vehicle to the side of the road.
    B. If you're stopping to help. park away from the accident. C. Put on your flashers and set out reflector triangles.
    D. All of the above.
    D. All of the above.
  50. Name two causes of tire fires:



    C. Under inflated tires and duals that touch
  51. Truck escape ramps:




    B. Are designed to protect vehicles from damage.
  52. Which of these can cause the vehicle to skid?




    D. All of the above
  53. You are driving a vehicle that could safely be driven at 55 MPH on an open road. But traffic is now heavy, moving at 35 MPH although the speed limit is 55. The safest speed for your vehicle in this situation is most likely:




    A. 35 MPH
  54. Every time you park your vehicle and shut the engine off you should:




    B. Apply the parking brake
  55. Which of these describes how you should use the brake pedal on a steep downhill grade?




    B. Release the brake when you are 5 MPH below your safe speed, then let your speed come back up to your safe speed and repeat braking again, (bring you speed down 5 MPH below your safe speed)
  56. For an average commercial vehicle, being driven at 55 MPH on dry pavement it will take about ____ to bring the vehicle to a stop.




    C. The length of a football field.
  57. Which of these statements about certain types of cargo is true?




    A. Unstable loads such as hanging meat or livestock require extra caution on curves
  58. Which of these statements about backing a heavy vehicle is true?




    D. All of the above are true.
  59. When should you wear seat belts?




    C. Any time you are in a moving vehicle.
  60. The most common cause of serious vehicle skids is:




    B. Driving too fast for road conditions.
  61. If you are being tailgated, you should:




    A. Increase the space in front of you.
  62. The parking brake should be tested while the vehicle is:

    A. Moving slowly.
    B. Moving at highway speed.
    C. Going downhill.
    D. Parked
     D. Parked
  63. A drivers trip log, if required:




    C. Must be shown immediately when an officer requests it. 
  64. When should the pre-trip inspection
    report from the last driver be reviewed?




    A. During your pre-trip inspection
  65. If you are stopped at a rest area and found to have a BAC (Blood Alcohol Concentration) of .02 you will:




    B. Be placed out of service for 24 hours
  66. If you are convicted of a traffic violation you should notify your employer within 30 days if the following is true:

    A The violation occurred in your personal vehicle
    B The violation occurred in a commercial vehicle
    C The violation was for parking in a restricted area
    D Both a & b
    D. Both a & b
  67. A commercial motor vehicle is defined as:

    A A vehicle with a gross weight over 26,001 lbs.
    B A vehicle transporting hazardous materials
    C A vehicle transporting 16 or more passengers
    D All of the above
    D. All of the above
  68. Suspension systems are intended to:

    A Keep the load in place
    B Keep the axles in place
    C Keep the brake drums from failing
    D Keep the steering wheel tight
    B. Keep the axles in place
  69. Why should the exhaust system be checked?




    C. A leaking exhaust system can allow poisonous fumes into the cab
  70. Which of the following is NOT part of the pre-trip inspection:




    B. Check air seat adjustments
  71. Tires should be checked for wear often and should be replaced:




    D. All of the above
  72. The proper way to hold your hands on the steering wheel is:




    C. Opposite sides of the wheel
  73. When backing up your tractor trailer you should try to AVOID:




    D. Backing toward the right (passenger) side
  74. When accelerating, which of the following is true?




    D. You should speed up smoothly and gradually and avoid jerking
  75. Which one of the following is true about shifting gears?




    D. Understand the best RPM range for your vehicle
  76. Which of the following statements about downshifting is NOT true?




    D. Downshift when you get to the bottom of a hill
  77. An engine retarder is designed to:




    A. Slow the vehicle down without using brakes
  78. When driving at highway speeds, you should look 12-15 seconds ahead which is:




    B. At least a quarter of a mile
  79. Which of the following statements about your mirrors is true?




    C. You should be aware that some objects may appear smaller in your mirrors
  80. When using turn signals, which of the following should be avoided?:




    D. Signal just before you start to make a turn
  81. The best way to warn the drivers behind you that you are slowing down is to:




    B. Tap your brakes
  82. If you must stop on the shoulder of the road, you should place warning devices at all of the following places except:




    A. On the other side of a divided highway
  83. Which of the following statements about stopping distances is NOT true?




    A. Brakes, tires, springs and shocks are designed to work best when the truck is empty
  84. At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:




    D. About the length of a football field or 100 yards
  85. When is the road likely to be more slippery?




    D. When it has just begun to rain
  86. Hydroplaning can occur when you drive through water or slush. If you experience hydroplaning you should:




    A. Release the accelerator and push in the clutch
  87. Which of the following is NOT true when driving through a curve?




    B.  You should brake during the curve
  88. When driving in heavy traffic you should travel:




    D.  At a speed consistent with the flow of traffic
  89. Safe drivers maintain space around their vehicles for the following reasons except:




    B.  In case you need to test your brakes
  90. How much space should you maintain in front of you at highway speeds?




    C.  Seven seconds for a 60 foot vehicle
  91. If you find that you are being tailgated, you should:




    B. Increase the distance between you and the tailgater
  92. Which of the following statements about overhead space is true?




    B.  The weight of the cargo changes a truck's height
  93. When making a right hand turn you should always:




    A.  Keep the rear of your vehicle close to the curb
  94. When making a left hand turn you should always:




    C.  Wait until you reach the center of the intersection before you turn
  95. Driving at night is more dangerous because of the following EXCEPT:




    C.  Traffic lights are less visible than in the day
  96. The following statements about an engine overheating are TRUE EXCEPT:




    D.  Antifreeze is only used in colder temperatures
  97. When going down a hill you should always:




    C.  Be in the right gear before starting down the hill
  98. The best time to test your parking brake is:




    D.  When the vehicle is parked
  99. The following are all probable signs of a tire blowout EXCEPT:




    A.  The smell of smoke
  100. In the event of a tire failure you should:




    C.  Stay off the brake and hold the steering wheel firmly
  101. Your vehicle is going down a long hill and your brakes begin to fail. What should you do?




    C.  Look for an escape ramp or an escape route
  102. To correct a drive wheel acceleration skid you should:




    B. Stop accelerating and push in the clutch
  103. To correct a drive-wheel braking skid you should:




    C. Release the brake and steer/counter-steer
  104. A front wheel skid is usually caused by:




    D. All of the above
  105. In the event of an accident you should remember to do the following EXCEPT:




    A. Move the victims out of the way immediately
  106. Which of the following are causes of vehicle fires:




    D.  All of the above
  107. What is the first thing to do if your vehicle catches fire while driving?




    C. Pull off the road and park in an open area
  108. Water can be used to extinguish which of the following fires?




    A. Tires
  109. The best way to put out a fire is to:




    C. Stand upwind and spray the base of the fire
  110. What is the best thing to do if you are tired?




    B. Get enough sleep
  111. Which of the following statements about alcohol is true:




    A. A few beers are the same as a few shots of whiskey or glasses of wine
  112. If you do not have a HAZMAT endorsements on your CDL, under what conditions may you legally haul hazardous materials?




    A. If the load does not require placards
  113. If you are asked to haul a placarded load and you do not have HAZMAT endorsements you should:




    C. Refuse to take the load
  114. You should check your cargo how often?




    D. All of the above
  115. Overloading your trailer can result in the following EXCEPT:




    D. It can help you go through snow better
Author
RalphFolarin
ID
190820
Card Set
CDL GENERAL KNOWLEDGE
Description
CDL PRACTICE QUESTIONS
Updated