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Steam Boilers and Engines problems


  • 1. The draught may be produced by a

  • Options
  • A. mechanical fan
  • B. chimney
  • C. a steam jet
  • D. all of these
  • Discuss
  • 2. The clearance in the engine cylinder has no effect on the steam consumption.

  • Options
  • A. True
  • B. False
  • Discuss
  • 3. The fire tubes in a Locomotive boiler has __________ diameter.

  • Options
  • A. 4.75 mm
  • B. 5.47 mm
  • C. 7.45 mm
  • D. 47.5 mm
  • Discuss
  • 4. The high pressure and low pressure cylinders in a Woolf type compound engine are regarded as having cranks

  • Options
  • A. 180° to each other
  • B. 90° to each other
  • C. 0° to each other
  • D. none of these
  • Discuss
  • 5. The ratio of heat equivalent to brake power to the energy supplied in steam is known as

  • Options
  • A. mechanical efficiency
  • B. overall efficiency
  • C. indicated thermal efficiency
  • D. brake thermal efficiency
  • Discuss
  • 6. A condenser in a steam power plant

  • Options
  • A. increases expansion ratio of steam
  • B. reduces back pressure of steam
  • C. reduces temperature of exhaust steam
  • D. all of these
  • Discuss
  • 7. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is __________ the lowpressure cylinder.

  • Options
  • A. equal to
  • B. less than
  • C. more than
  • Discuss
  • 8. The rate of flow of steam is __________ in case of fire tube boilers.

  • Options
  • A. less
  • B. more
  • Discuss
  • 9. A condenser where circulating water flows through tubes which are surrounded by steam, in known as

  • Options
  • A. surface condenser
  • B. jet condenser
  • C. barometric condenser
  • D. evaporative condenser
  • Discuss
  • 10. The fittings mounted on the boiler for its proper and safe functioning is a

  • Options
  • A. water level indicatior
  • B. pressure gauge
  • C. safety valve
  • D. all of these
  • Discuss

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