Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
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
- Correct Answer
- m = a + b x I.P.
- 1. Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.
Options- A. True
- B. False Discuss
- 2. 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
- 3. 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
- 4. When the expansion of steam is carried out in a single cylinder and then exhausted into the atmosphere or a condenser, the engine is said to be a simple steam engine.
Options- A. Correct
- B. Incorrect Discuss
- 5. In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
Options- A. Correct
- B. Incorrect Discuss
- 6. The water tube boilers produce steam at a __________ pressure than that of fire tube boilers.
Options- A. lower
- B. higher Discuss
- 7. 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 Discuss
- 8. 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
- 9. 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
- 10. The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.
Options- A. Correct
- B. Incorrect Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: True
Correct Answer: both (a) and (b)
Correct Answer: No
Correct Answer: Correct
Correct Answer: Correct
Correct Answer: higher
Correct Answer: more
Correct Answer: Agree
Correct Answer: Correct
Correct Answer: Correct
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.