Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
The water tubes in a Babcock and Wilcox boiler are
Options- A. vertical
- B. horizontal
- C. inclined
- Correct Answer
- inclined
- 1. The equivalent evaporation is defined as
Options- A. the ratio of heat actually used in producing the steam to the heat liberated in the furnace
- B. the amount of water evaporated or steam produced in kg per kg of fuel burnt
- C. the amount of water evaporated from and at 100° C into dry and saturated steam
- D. the evaporation of 15.653 kg of water per hour from and at 100° C Discuss
- 2. The draught produced by a steam jet issuing from a nozzle placed in the chimney is called
Options- A. induced steam jet draught
- B. chimney draught
- C. forced steam jet draught
- D. none of these Discuss
- 3. The actual power supplied by the engine crankshaft is called
Options- A. indicated power
- B. brake power
- C. frictional power
- D. none of these Discuss
- 4. A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° 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
- 5. In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.
Options- A. equal to
- B. lower than
- C. higher than Discuss
- 6. In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
Options- A. Correct
- B. Incorrect Discuss
- 7. 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
- 8. 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
- 9. 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
- 10. Willian's law holds good for throttle-governed engine, but not for cut-off governed engine.
Options- A. True
- B. False Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: the amount of water evaporated from and at 100° C into dry and saturated steam
Correct Answer: induced steam jet draught
Correct Answer: brake power
Correct Answer: Woolf type compound engine
Correct Answer: higher than
Correct Answer: Correct
Correct Answer: Correct
Correct Answer: No
Correct Answer: both (a) and (b)
Correct Answer: True
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.