How Much You Know About Gas Turbine? Trivia Quiz

16 Questions | Total Attempts: 628

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How Much You Know About Gas Turbine? Trivia Quiz


Questions and Answers
  • 1. 
    The gas turbine works on this cycle.
    • A. 

      Otto cycle

    • B. 

      Rankine cycle

    • C. 

      Brayton cycle

  • 2. 
    The function of Gas Scrubber is
    • A. 

      To remove oxygen &other gases from the supply gas

    • B. 

      To remove liquid particles from the supply gas

    • C. 

      To remove carbon monoxide from the supply gas

  • 3. 
    The gas turbine needs no starting device.
    • A. 

      True

    • B. 

      False

  • 4. 
    What is the function of the gas turbine starting device?
    • A. 

      Supply high torque at zero speed

    • B. 

      Drive the unfired gas turbine to an acceptable firing speed

    • C. 

      To assist the fired turbine to a self sustaining speed

    • D. 

      All the above

    • E. 

      Only B & C

  • 5. 
    The fire hazard valve is a safety device that shuts the gas supply in case of emergency or during normal shut down.
    • A. 

      True

    • B. 

      False

  • 6. 
    The bleed valve is used to bleed compressed air for cooling compressor liners.
    • A. 

      True

    • B. 

      False

  • 7. 
    The bleed valve is used to protect the compressor from surging.
    • A. 

      True

    • B. 

      False

  • 8. 
    • A. 

      To regulate the pressure in bearing header.

    • B. 

      To prevent the turbine from starting in case of low lube oil header pressure.

    • C. 

      To control the flow of lube oil.

  • 9. 
    Journal bearing supports both the radial and axial load of the shaft.
    • A. 

      True

    • B. 

      False

  • 10. 
    Journal bearing clearance can be measured using a feeler gauge.
    • A. 

      True

    • B. 

      False

  • 11. 
    What is the most accurate method to measure journal bearing clearance?
    • A. 

      By lead wire by lead wire

    • B. 

      By subtracting shaft diameter from bearing inside diameter

    • C. 

      By feeler gauge

  • 12. 
    • A. 

      Tin base white metal

    • B. 

      Lead base white metal

    • C. 

      Copper alloys

  • 13. 
    Gas turbine bearings are based on hydrodynamic lubrication.
    • A. 

      True

    • B. 

      False

  • 14. 
    High shaft speeds and low bearing loads result in hydrodynamic friction.
    • A. 

      True

    • B. 

      False

  • 15. 
    Generally boundary friction occurs
    • A. 

      In high speed and low load condition

    • B. 

      During starting and coast down of machine

  • 16. 
    The differential contraction results in upward bending of rotor is known as
    • A. 

      shaft sag

    • B. 

      Shaft hog

    • C. 

      Shaft bend