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  • Question
  • The main cause for the change in engine oil viscosity is


  • Options
  • A. humidity
  • B. temperature
  • C. vibration
  • D. contamination

  • Correct Answer
  • temperature 


  • Automobile Engineering problems


    Search Results


    • 1. Engine misfiring is likely to result from

    • Options
    • A. spark plug gap too small
    • B. spark plug gap too wide
    • C. vapour lock in the fuel only
    • D. incorrect fuel air mixture
    • Discuss
    • 2. The instrument used to check specific gravity of acid in a battery is

    • Options
    • A. hydrometer
    • B. hygrometer
    • C. anemometer
    • D. multimeter
    • Discuss
    • 3. The connecting rod connects the piston and the

    • Options
    • A. cylinder head
    • B. cylinder block
    • C. camshaft
    • D. crankshaft
    • Discuss
    • 4. The parking brake generally acts on

    • Options
    • A. front wheels
    • B. rear wheels
    • C. front and rear wheels
    • D. propeller shaft
    • Discuss
    • 5. The positive plates of a lead acid battery has

    • Options
    • A. lead peroxide (PbO2)
    • B. spongy lead (Pb)
    • C. lead sulphate (PbSO4)
    • D. sulphuric acid (H2SO4)
    • Discuss
    • 6. The engine's idling speed will increase by a slight degree immediately after a cold engine has been started. It will drop as the engine warms up. and it will eventually reach the standard level.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. The main merit of a multi-cylinder type cylinder sleeve is

    • Options
    • A. smaller engine dimensions
    • B. better cooling efficiency
    • C. high rigidity
    • D. none of these
    • Discuss
    • 8. The connecting rod lower end is connected to the relevant __________ of crankshaft.

    • Options
    • A. big end
    • B. crank arm
    • C. journal
    • D. small end
    • Discuss
    • 9. Which of the following bulb in a car will have the least wattage?

    • Options
    • A. Head light bulb
    • B. Stop light bulb
    • C. Parking light bulb
    • D. Ignition warning bulb
    • Discuss
    • 10. In a square type engine

    • Options
    • A. geometrical shape is square
    • B. diameter and length of piston are same
    • C. two cylinders are placed horizontal and two vertical
    • D. stroke length and cylinder bore are same
    • Discuss


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