Steam Boilers, Engines, Nozzles & Turbines Mcqs


Q.  In a recuperative air preheater, the heat is transferred____________________?

a. from a metal wall from one medium to another
b. from heating an itermediate material and then heating the air from this material
c. by direct mixing
d. heat is transferred by bleeding some gases from furnace
e. none of the above


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MCQs:  Maximum work is done in compressing air when the compression is_________________?
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MCQs:  Standard air is the air at_____________________?
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MCQs:  The compressor capacity with decrease in suction temperature_________________?
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MCQs:  Inter cooling in compressors__________________?
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MCQs:  Isothermal compression though most efficient, but is not -practicable because_________________?
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MCQs:  What will be the volume of air at 327°C if its volume at 27°C is 1.5 m3/mt ?
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MCQs:  An ideal air compressor cycle without clearance on p-v diagram can be represented by following processes________________?
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MCQs:  The work done per unit mass of air in compression will’be least when n is equal to______________?
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MCQs:  An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes_______________?
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MCQs:  Compression efficiency is compared against_____________________?
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MCQs:  Aeroplanes employ following type of compressor_______________?
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MCQs:  Ratio of indicated H.P. and brake H.P. is known as_________________?
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MCQs:  Cylinder clearance in a compressor should be _________________?
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MCQs:  Volumetric efficiency of air compressors is of the order of________________?
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MCQs:  Volumetric efficiency of a compressor without clearance volume________________?
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MCQs:  Volumetric efficiency is_____________________?
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MCQs:  Ratio of compression is the ratio of__________________?
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MCQs:  The ratio of work doen per cycle to the swept volume in case of compressor is called ______________?
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MCQs:  The net work input required for compressor with increase in clearance volume_____________________?
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MCQs:  Clearance volume in actual reciprocating compressors is essential __________________?
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