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- Question
A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly
Options- A. 150 kg/h
- B. 210 kg/h
- C. 280 kg/h
- D. 340 kg/h
- Correct Answer
- 340 kg/h
- 1. 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
- 2. 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
- 3. 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
- 4. 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
- 5. 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
- 6. The capacity and working pressure.of a Cornish boiler is __________ as compared to Lancashire boiler.
Options- A. low
- B. high Discuss
- 7. When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as
Options- A. internally fired boiler
- B. externally fired boiler
- C. natural circulation boiler
- D. forced circulation boiler Discuss
- 8. The amount of water evaporated from feed water at __________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.
Options- A. 0°C
- B. 40°C
- C. 60°C
- D. 100°C Discuss
- 9. Which of the following statement is wrong?
Options- A. The mechanical draught reduces the height of chimney.
- B. The natural draught reduces the fuel consumption.
- C. A balanced draught is a combination of induced and forced draught.
- D. all of the above Discuss
- 10. The number of water level indicators in a boiler are generally __________ in number.
Options- A. one
- B. two
- C. three
- D. four Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: receiver type compound engine
Correct Answer: two-fifth
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: all of these
Correct Answer: I.P.
Correct Answer: low
Correct Answer: natural circulation boiler
Correct Answer: 100°C
Correct Answer: The natural draught reduces the fuel consumption.
Correct Answer: two
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