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- Question
The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as
Options- A. equivalent evaporation
- B. factor of evaporation
- C. boiler efficiency
- D. power of a boiler
- Correct Answer
- boiler efficiency
- 1. The cylindrical shell of a Lancashire boiler has diameter from
Options- A. 1 to 2 m
- B. 1.25 to 2.25 m
- C. 1.5 to 2.5 m
- D. 1.75 to 2.75 m Discuss
- 2. Babcock and Wilcox boiler is a stationary type of water tube boiler.
Options- A. Correct
- B. Incorrect Discuss
- 3. Lancashire boiler is a stationary fire tube boiler.
Options- A. Agree
- B. Disagree Discuss
- 4. Blow off cock in a boiler is used to
Options- A. control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required
- B. empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
- C. put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit
- D. increase the temperature of saturated steam without raising its pressure Discuss
- 5. Which of the following is required for a steam condensing plant?
Options- A. Condenser
- B. Condensate pump
- C. Air extraction pump
- D. all of these Discuss
- 6. Willian's law states that the steam consumption per hour provided with a throttled governor is proportional to (where I.P. = Indicated power)
Options- A.
- B.
- C. I.P.
- D. (I.P.)2 Discuss
- 7. Which of the following boiler works on a forced circulation of water?
Options- A. La-mont boiler
- B. Benson boiler
- C. Loeffler boiler
- D. all of these Discuss
- 8. In a single acting steam engine
Options- A. the steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft
- B. the steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft
- C. the steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft
- D. the steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft. Discuss
- 9. The diameter of internal flue tubes of a Lancashire boiler is about __________ that of its shell.
Options- A. one-fourth
- B. one-third
- C. two-fifth
- D. one-half Discuss
- 10. A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called
Options- A. receiver type compound engine
- B. Tandem type compound engine
- C. Woolf type compound engine
- D. both (a) and (b) Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: 1.75 to 2.75 m
Correct Answer: Correct
Correct Answer: Agree
Correct Answer: empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler
Correct Answer: all of these
Correct Answer: I.P.
Correct Answer: all of these
Correct Answer: the steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft
Correct Answer: two-fifth
Correct Answer: receiver type compound engine
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