Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
The clearance in the engine cylinder has no effect on the steam consumption.
Options- A. True
- B. False
- Correct Answer
- False
- 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 pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as
Options- A. feedpump
- B. injector
- C. feed check valve
- D. pressure gauge Discuss
- 3. Combustuion of fuel takes place __________ the engine cylinder of a steam engine.
Options- A. outside
- B. inside Discuss
- 4. A device used to heat feed water by utilising the heat in me exhaust flue gases before leaving through the chimny, is known as
Options- A. economiser
- B. fusible plug
- C. superheater
- D. stop valve Discuss
- 5. The factor of evaporation for all boilers is always
Options- A. equal to unity
- B. less than unity
- C. greater than unity Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. 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
Steam Boilers and Engines problems
Search Results
Correct Answer: all of these
Correct Answer: feedpump
Correct Answer: outside
Correct Answer: economiser
Correct Answer: greater than unity
Correct Answer: 47.5 mm
Correct Answer: 180° to each other
Correct Answer: brake thermal efficiency
Correct Answer: all of these
Correct Answer: less than
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