Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

An economiser is generally placed between
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
Answer: A
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There is about 15 to 20% of coal saving when an economiser is used in a boiler.
A:
True
B:
False
C:
D:
Answer: A
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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.
A:
Correct
B:
Incorrect
C:
D:
Answer: B
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The draught in locomotive boilers is produced by a
A:
chimney
B:
centrifugal fan
C:
steam jet
D:
none of these
Answer: C
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The working pressure range for a La-Mont boiler is
A:
0.5 to 10 MN/m2
B:
1 to 15 MN/m2
C:
2.5 to 15 MN/m2
D:
3.5 to 20 MN/m2
Answer: D
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