Discussion
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- Question
Loeffler boiler is a water tube boiler using a forced circulation of water.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The aim of a compound steam engine is
Options- A. to reduce the ratio of expansion in each cylinder
- B. to reduce the length of stroke
- C. to reduce the temperature range in each cylinder
- D. all of the above Discuss
- 2. A draught produced by a chimney due to the difference of densities between the hot gases inside the chimney and cold atmospheric air outside it, is called natural draught.
Options- A. Yes
- B. No Discuss
- 3. The average operating pressure of Benson boiler is
Options- A. 100 bar
- B. 150 bar
- C. 200 bar
- D. 250 bar Discuss
- 4. The rate of steam produced in Benson boiler is
Options- A. 100 tonnes/h
- B. 135 tonnes/h
- C. 175 tonnes/h
- D. 250 tonnes/h Discuss
- 5. An economiser __________ the steam raising capacity of a boiler.
Options- A. increases
- B. decreases
- C. has no effect on Discuss
- 6. The function of a crosshead is to guide motion of the __________ and to prevent it from bending.
Options- A. piston rod
- B. connecting rod
- C. eccentric rod
- D. valve rod Discuss
- 7. The function of a piston rod 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
- D. to exhust steam from the cylinder at proper moment Discuss
- 8. The length of shell of a Locomotive boiler is
Options- A. 1 m
- B. 2 m
- C. 3 m
- D. 4 m Discuss
- 9. Which of the following statement is correct?
Options- A. Lancashire boiler is a fire tube boiler.
- B. Fire tube boilers are internally fired.
- C. Babcock and Wilcox boiler is a water tube boiler.
- D. all of the above Discuss
- 10. The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.
Options- A. Agree
- B. Disagree Discuss
Steam Boilers and Engines problems
Search Results
Correct Answer: all of the above
Correct Answer: Yes
Correct Answer: 250 bar
Correct Answer: 135 tonnes/h
Correct Answer: increases
Correct Answer: piston rod
Correct Answer: to transfer motion from the piston to the cross head
Correct Answer: 4 m
Correct Answer: all of the above
Correct Answer: Agree
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