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Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
  • Question

  • The amount of water evaporated or steam produced in kg per kg of fuel burnt is termed as evaporative capacity of a boiler.


  • Options
  • A. Agree
  • B. Disagree

  • Correct Answer
  • Agree 

    • Steam Boilers and Engines problems

    Search Results

    • 1. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as

    • Options
    • A. blow off cock
    • B. fusible plug
    • C. superheater
    • D. stop valve
      • Discuss
    • 2. Lancashire boiler is used where working pressure and power required are

    • Options
    • A. low
    • B. moderate
    • C. high
    • D. none of these
      • Discuss
    • 3. Expansion ratio is the ratio of

    • Options
    • A. swept volume to the volume at cut-off
    • B. clearance volume to the swept volume
    • C. volume at cut-off to the swept volume
    • D. swept volume to the clearance volume
      • Discuss
    • 4. The motion of a D-slide valve in a steam engine is simple harmonic.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 5. The maximum steam pressure in a Locomotive boiler is limited to

    • Options
    • A. 0.18 MN/m2
    • B. 1.8 MN/m2
    • C. 18 MN/m2
    • D. 180 MN/m2
      • Discuss
    • 6. The draught is the __________ of pressures above and below the fire grate.

    • Options
    • A. sum
    • B. difference
      • Discuss
    • 7. In a double acting steam engine, the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. In a Tandem type compound engine, the high pressure and low pressure cylinders

    • Options
    • A. have common piston rod
    • B. are set at 90°
    • C. have separate piston rods
    • D. are set in V - arrangement
      • Discuss
    • 9. Cornish boilers are multi-tubular boilers.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The ratio of the clearance volume to the swept volume is called

    • Options
    • A. cut-off ratio
    • B. expansion ratip
    • C. clearance ratio
    • D. none of these
      • Discuss

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