Discussion
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- Question
When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
Options- A. internally fired boiler
- B. externally fired boiler
- C. natural circulation boiler
- D. forced circulation boiler
- Correct Answer
- forced circulation boiler
- 1. The draught produced by a steam jet issuing from a nozzle placed in the ashpit under the fire grate of the furnace is called
Options- A. induced steam jet draught
- B. chimney draught
- C. forced steam jet draught
- D. none of these Discuss
- 2. A device used to increase the temperature of saturated steam without raising its pressure, is called
Options- A. blow off cock
- B. fusible plug
- C. superheater
- D. stop valve Discuss
- 3. In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to
Options- A. water space also
- B. chimney
- C. steam space
- D. superheater Discuss
- 4. An air preheater is installed
Options- A. before the economiser
- B. before the superheater
- C. between the economiser and chimney
- D. none of these Discuss
- 5. In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.
Options- A. Correct
- B. Incorrect Discuss
- 6. The diameter of Cornish boiler varies from
Options- A. 0.5 to 1 m
- B. 1 to 2 m
- C. 1.25 to 2.5 m
- D. 2 to 3 m Discuss
- 7. The natural draught is produced by
Options- A. steam jet
- B. centrifugal fan
- C. chimney
- D. both (a) and (b) Discuss
- 8. The fire tubes in a Cochran boiler are
Options- A. horizontal
- B. vertical
- C. inclined Discuss
- 9. The function of a connecting rod is not to convert reciprocating motion of the piston into rotary motion.
Options- A. True
- B. False Discuss
- 10. The function of a flywheel is
Options- A. to convert reciprocating motion of the piston into rotary motion.
- B. to convert rotary motion of the crankshaft into to and fro motion of the valve rod
- C. to prevent fluctuation of speed
- D. to keep the engine speed uniform at all load conditions Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: forced steam jet draught
Correct Answer: superheater
Correct Answer: steam space
Correct Answer: between the economiser and chimney
Correct Answer: Correct
Correct Answer: 1 to 2 m
Correct Answer: chimney
Correct Answer: horizontal
Correct Answer: False
Correct Answer: to prevent fluctuation of speed
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