Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

The velocity of flue gases (V) through the chimney under a static draught of(H') metres is given by
A:
V = 2g H'
B:
V = 2g/H'
C:
V = H'/2g
D:
V = 2gH'
Answer: A
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By compounding the expansion of steam in two or more cylinders, the length of stroke
A:
does not change
B:
increases
C:
decreases
D:
Answer: C
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The diagram factor is the ratio of the
A:
area of the actual indicator diagram to the area of theoretical indicator diagram
B:
actual workdone per stroke to the theoretical workdone per stroke
C:
actual mean effective pressure to the theoretical mean effective pressure
D:
any one of the above
Answer: D
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Steam engines are called external combustion engines.
A:
Yes
B:
No
C:
D:
Answer: A
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In a fire tube boiler, the water is contained inside the tubes which are surrounded by flames and hot gases from outside.
A:
True
B:
False
C:
D:
Answer: B
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