Discussion
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- Question
For the same diameter and thickness of tube, a water tube boiler has __________ heating surface as compared to fire tube boiler.
Options- A. more
- B. less
- C. equal
- Correct Answer
- more
- 1. The water tube boilers produce steam at a __________ pressure than that of fire tube boilers.
Options- A. lower
- B. higher Discuss
- 2. Willian's line follows the law (where b = A constant representing the shape of the Willian's line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)
Options- A. I.P. = a x m + b
- B. m = a + b x I.P.
- C. I.P. = b x m + a
- D. m = b/I.P. - a Discuss
- 3. Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.
Options- A. True
- B. False Discuss
- 4. The high steam and low water safety valve is used to blow off steam when the
Options- A. steam pressure exceeds the working pressure
- B. water level in the boiler becomes too low
- C. both (a) and (b)
- D. none of the above Discuss
- 5. The function of a superheater is to heat the feed water by utilising the heat in the exhaust flue gases before leaving through the chimney.
Options- A. Yes
- B. No Discuss
- 6. The missing quantity is mainly due to cylinder condensation and a small amount of steam leakage past the valves and piston.
Options- A. Agree
- B. Disagree Discuss
- 7. A single ended Scotch marine steam boiler may have one to four furnaces which enter from front end of the boiler.
Options- A. Correct
- B. Incorrect Discuss
- 8. The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.
Options- A. Correct
- B. Incorrect Discuss
- 9. The high pressure and low pressure cylinders in a receiver 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
- 10. In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the atmospheric pressure.
Options- A. equal to
- B. lower than
- C. higher than Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: higher
Correct Answer: m = a + b x I.P.
Correct Answer: True
Correct Answer: both (a) and (b)
Correct Answer: No
Correct Answer: Agree
Correct Answer: Correct
Correct Answer: Correct
Correct Answer: 90° to each other
Correct Answer: higher than
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