Discussion
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- Question
The performance of a boiler is measured by the
Options- A. amount of water evaporated per hour
- B. steam produced in kg/h
- C. steam produced in kg/kg of fuel burnt
- D. all of these
- Correct Answer
- all of these
- 1. Locomotive boiler is a __________ boiler.
Options- A. fire tube
- B. water tube Discuss
- 2. Water tube boilers produce steam at a __________ pressure than that of fire tube boilers.
Options- A. lower
- B. higher Discuss
- 3. The missing quantity per stroke is equal to
Options- A. cylinder feed - indicated mass of steam
- B. cylinder feed + indicated mass of steam
- C. mass of cushion steam + indicated mass of steam
- D. mass of cushion steam + cylinder feed Discuss
- 4. The internal flue tubes of a Lancashire boiler are reduced in diameter at the back to provide access to the lower part of the boiler.
Options- A. True
- B. False Discuss
- 5. The relative efficiency is defined as the
Options- A. ratio of thermal efficiency to Rankine efficiency
- B. ratio of brake power to the indicated power
- C. ratio of heat equivalent to indicated power to the energy supplied in steam
- D. product of thermal efficiency and Rankine efficiency Discuss
- 6. The theoretical indicator diagram of a simple steam engine is based upon the assumption that
Options- A. there is no pressure drop due to condensation
- B. steam is admitted at boiler pressure and exhausted at condenser pressure
- C. the expansion (or compression) of the steam is hyperbolic
- D. all of the above Discuss
- 7. When steam after doing work in the cylinder passes into a condenser, the engine is said to be a
Options- A. slow speed engine
- B. vertical steam engine
- C. condensing steam engine
- D. non-condensing steam engine Discuss
- 8. The heat balance sheet for the boiler shows the
Options- A. complete account of heat supplied by 1 kg of dry fuel and the heat consumed
- B. moisture present in the fuel
- C. steam formed by combustion of hygrogen per kg of fuel
- D. all of the above Discuss
- 9. Which of the following is a water tube boiler?
Options- A. Lancashire boiler
- B. Babcock and Wilcox boiler
- C. Locomotive boiler
- D. Cochran boiler Discuss
- 10. The diameter of a cylindrical shell of a Scotch marine boiler varies from
Options- A. 1.5 to 2 m
- B. 2.5 to 3.5 m
- C. 3.5 to 4.5 m
- D. none of these Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: fire tube
Correct Answer: higher
Correct Answer: cylinder feed - indicated mass of steam
Correct Answer: True
Correct Answer: ratio of thermal efficiency to Rankine efficiency
Correct Answer: all of the above
Correct Answer: condensing steam engine
Correct Answer: complete account of heat supplied by 1 kg of dry fuel and the heat consumed
Correct Answer: Babcock and Wilcox boiler
Correct Answer: 2.5 to 3.5 m
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