Discussion
Home ‣ Mechanical Engineering ‣ Steam Boilers and Engines Comments
- Question
The length of Cornish boiler varies from
Options- A. 2 to 4.5 m
- B. 3 to 5 m
- C. 5 to 7.5 m
- D. 7 to 9 m
- Correct Answer
- 5 to 7.5 m
- 1. The ratio of heat actually used in producing the steam to the heat liberated in the furnace is known as equivalent evaporation from and at 100° C.
Options- A. Correct
- B. Incorrect Discuss
- 2. The actual power generated in the engine cylinder is called
Options- A. indicated power
- B. brake power
- C. frictional power
- D. none of these Discuss
- 3. A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called
Options- A. blow off cock
- B. stop valve
- C. superheater
- D. none of these Discuss
- 4. The high steam and low water safety valve is not used in
Options- A. Cochran boiler
- B. Cornish boiler
- C. Lancashire boiler
- D. Locomotive boiler Discuss
- 5. The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called
Options- A. safety valve
- B. water level indicator
- C. pressure gauge
- D. fusible plug Discuss
- 6. An economiser is generally placed between
Options- A. last superheater or reheater and air preheater
- B. induced draft fan and forced draft fan
- C. air preheater and chimney
- D. none of the above Discuss
- 7. The amount of water evaporated from and at 100° C into dry and saturated steam is called evaporative capacity of a boiler.
Options- A. Yes
- B. No Discuss
- 8. The function of a piston in a steam engine is
Options- A. to guide motion of the piston rod and to prevent it from bending
- B. to transfer motion from the piston to the cross-head
- C. to convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment Discuss
- 9. There is about 15 to 20% of coal saving when an economiser is used in a boiler.
Options- A. True
- B. False Discuss
- 10. The difference between the atmospheric pressure and the absolute pressure is known as vacuum in a condenser.
Options- A. Agree
- B. Disagree Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: Incorrect
Correct Answer: indicated power
Correct Answer: none of these
Correct Answer: Locomotive boiler
Correct Answer: safety valve
Correct Answer: last superheater or reheater and air preheater
Correct Answer: No
Correct Answer: to convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment
Correct Answer: True
Correct Answer: Agree
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.