Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

The main object of a boiler trial is
A:
to determine the generating capacity of the boiler
B:
to determine the thermal efficiency of the boiler when working at a definite pressure
C:
to prepare heat balance sheet for the boiler
D:
all of the above
Answer: D
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The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks
A:
180° to each other
B:
90° to each other
C:
0° to each other
D:
none of these
Answer: B
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The maximum steam pressure in a Locomotive boiler is limited to
A:
0.18 MN/m2
B:
1.8 MN/m2
C:
18 MN/m2
D:
180 MN/m2
Answer: B
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The selection of type and size of a steam boiler depends upon
A:
the power required and working pressure
B:
the geographical position of the power house
C:
the fuel and water available
D:
all of the above
Answer: D
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When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by
A:
B:
C:
D:
none of these
Answer: A
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