1. In locomotive boiler, why natural draught cannot be obtained?
a) The chimney height required is too low
b) The boiler keeps moving, cannot maintain a constant pressure difference
c) The chimney height required is too high
d) The diameter of chimney required is impractical
Ans. c
2. What is the working pressure of a Locomotive boiler?
a) 12 bar
b) 14 bar
c) 16 bar
d) 18 bar
Ans. b
3. What is the steam capacity of a Locomotive boiler?
a) 3000 kg/hr
b) 5000 kg/hr
c) 7000 kg/hr
d) 9000 kg/hr
Ans. d
4. The efficiency of Locomotive boiler is around _____
a) 30%
b) 50%
c) 70%
d) 90%
Ans. c
5. What is the function of dampers in Lancashire boiler?
a) They control the flow of hot gases to the chimney
b) They regulate the fire in the furnace
c) They control the flow water to the boiler
d) They control the steam going out of the boiler
Ans. a
6. Which of the following statements is FALSE about a Locomotive boiler?
a) It has high steam capacity
b) It is portable
c) Scale formation and corrosion could take place
d) Water spaces can be cleaned easily
Ans. d
7. In case of Locomotive boilers, what purpose the dampers serve?
a) They control the flow of air to grate
b) They control the flow of hot gases
c) They control the flow of steam leaving the boiler
d) They reduce the intensity of fire, if needed
Ans. a
8. Which of the following statements is FALSE about steam dome in Locomotive boilers?
a) It is located at the upper part of the barrel
b) It has a regulator to regulate the steam flow
c) It is the chamber to collect the steam produced
d) From steam dome, the steam flows into the chamber through a steam pipe
Ans. c
9. When the locomotive is at rest, there is no exhaust steam available. So, fresh steam from the boiler is used as exhaust steam.
a) True
b) False
Ans. a
10. In Locomotive boilers, the superheater tubes are placed inside the fire tubes.
a) True
b) False
Ans. a
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