Quiz 2 - Lubricating And Cooling Systems

20 Questions | Total Attempts: 2642

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Quiz 2 - Lubricating And Cooling Systems

Review questions on lubricating systems


Questions and Answers
  • 1. 
    Which of the following is a function of the engine's lubrication system?
    • A. 

      Holds an adequate supply of oil

    • B. 

      Removes contaminates from the oil

    • C. 

      Delivers oil to all necessary areas of the engine

    • D. 

      All of the above

  • 2. 
    Technician A says that the 'S' service rating system (SA,SB,SC,etc.) rates oil for gasoline engines and refers to the level of additives and other characteristics of the oil's makeup. Technician B says that an SL rated oil can be used in place of an SH rated oil. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 3. 
    Engine oil viscosity ratings are being discussed. Technician A says a low-weight oil works best in high-temperature regions. Technician B says all multi-viscosity oils are interchangeable. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 4. 
    Technician A says that engine oil is used to clean, cool, and lubricate the engine. Technician B says engine oil helps seal some internal engine parts. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 5. 
    Engine oil pressure is being discussed. Technician A says low pressure may be caused by worn engine bearings. Technician B says oil viscosity, temperature, and contamination can affect oil pressure. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 6. 
    When an engine experiences decreased oil pressure, Technician A says that piston slap is a likely initial symptom. Technician B says that valvetrain noise is common with decreased oil pressure. Who is correct?
    • A. 

      A onl;y

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 7. 
    Which of the following would not cause low oil pressure?
    • A. 

      Plugged oil pickup screen

    • B. 

      Excessive oil dilution

    • C. 

      Excessive engine valve lifter wear

    • D. 

      Excessive engine bearing wear

  • 8. 
    Which of the following would be a likely cause excessive oil consumption?
    • A. 

      Faulty PCV system

    • B. 

      Worn piston rings

    • C. 

      Neither A nor B

    • D. 

      Both A and B

  • 9. 
    Technician A says high oil pressure wil cause valve cover gasket leaks. Technician B says low oil pressure can be caused by a faulty PCV system. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 10. 
    Technician A says that extended life coolant is more environmentaly friendly. Technician B says two year coolant (green) can be used to top off all automotive cooling systems. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 11. 
    In most automotive applications, the water pump is driven by the:
    • A. 

      Flywheel

    • B. 

      Camshaft

    • C. 

      Crankshaft

    • D. 

      Impeller

  • 12. 
    Why are modern cooling systems pressurized?
    • A. 

      To raise coolant's boiling point

    • B. 

      To prevent leaks

    • C. 

      To move the coolant through the system

    • D. 

      To prevent corrosion in the system

  • 13. 
    What is the most likely symptom of a vehicle with a non-operational electric cooling fan?
    • A. 

      Overheating at highway speeds

    • B. 

      Overheating at low speeds

    • C. 

      Overheating at all speeds

    • D. 

      Lack of heat from the heater core

  • 14. 
    The typical recommended mixture of water and antifreeze to form engine coolant is:
    • A. 

      30/70

    • B. 

      50/50

    • C. 

      40/60

    • D. 

      60/40

  • 15. 
    Most manufacturers recommend that cooling systems with conventional (green) antifreeze should be drained, flushed, and filled every:
    • A. 

      Six months

    • B. 

      Yearly

    • C. 

      Two years

    • D. 

      Five years

  • 16. 
    When pressure testing a cooling system, the pressure applied should be:
    • A. 

      Pumped up as high as possible

    • B. 

      Pumped up to the pressure cap rating

    • C. 

      Pumped up to 10 psi

    • D. 

      Released quickly

  • 17. 
    Technician a says a leaking head gasket could explain the presence of coolant in  the eingine's crankcase. Technician B says that coolant that is a milky brown color has been contaminated with either engine or automatic transmission oil. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 18. 
    Technician A says an electric cooling fan may come on without the ignition being turned on. Technician B says an electric cooling fan may be controlled by the engine control computer. Who is correct?
    • A. 

      A only

    • B. 

      B only

    • C. 

      Both A and B

    • D. 

      Neither A nor B

  • 19. 
    What is a likely harmful effect of engine overheating?
    • A. 

      Damage to combustion chamber parts

    • B. 

      Damage in the crankcase

    • C. 

      Poor gas mileage

    • D. 

      High tailpipe emissions

  • 20. 
    What is a likely harmful effect of engine underheating?
    • A. 

      High tailpipe emissions

    • B. 

      Sludge builup in the oil

    • C. 

      Poor gas mileage

    • D. 

      All of the above

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