Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

Willian's line follows the law (where b = A constant representing the shape of the Willian's line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour)
A:
I.P. = a x m + b
B:
m = a + b x I.P.
C:
I.P. = b x m + a
D:
m = b/I.P. - a
Answer: B
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The function of a superheater is to heat the feed water by utilising the heat in the exhaust flue gases before leaving through the chimney.
A:
Yes
B:
No
C:
D:
Answer: B
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The actual vacuum in a condenser is equal to
A:
barometric pressure + actual pressure
B:
barometric pressure - actual pressure
C:
gauge pressure + atmospheric pressure
D:
gauge pressure - atmospheric pressure
Answer: B
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The cylinder condensation or missing quantity may be reduced by
A:
the efficient steam jacketing of the cylinder walls
B:
superheating the steam supplied to the engine cylinder
C:
keeping the expansion ratio small in each cylinder
D:
all of the above
Answer: D
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In a compound steam engine, the temperature range per cylinder is reduced, with corresponding reduction in the condensation.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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