Compressors, Gas Turbines & Jet Engines Mcqs

Q.  Mining industry usually employs following motive power___________________?

a. A.C. electric motor
b. compressed air
c. petrol engine
d. diesel engine
e. D.C. electric motor


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MCQs:  The ratio of isentropic work to Euler work is known as_____________________?
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MCQs:  Phenomenon of choking in compressor means __________________?
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MCQs:  Diffuser in a compressor is used to _____________________?
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MCQs:  For supplying intermittent small quantity of air at high pressure, following compressor is best suited__________________?
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MCQs:  Which is false statement about advantages of multistage compressor in comparison to single stage compressor_________________?
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MCQs:  For minimum work in multistage compression, assuming same index of compression in all stages_________________?
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MCQs:  The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature__________________?
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MCQs:  The criterion of the thermodynamic efficiency for rotary compressor is_________________?
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MCQs:  For a two stage compressor* if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will___________________?
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MCQs:  Losses in a centrifugal compressor are due to__________________?
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MCQs:  Pick up the wrong statement about advantages of multistage compression____________________?
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MCQs:  More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than____________________?
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MCQs:  The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called__________________?
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MCQs:  The ratio of isentropic work to euler’s work is known as _____________________?
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MCQs:  The maximum compression ratio in an actual single stage axial flow comperssor is of the order of________________?
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MCQs:  Surging is the phenomenon of___________________?
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MCQs:  The thermodynamic efficiency of rotary compressor is based on_______________?
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MCQs:  Maximum delivery pressure is a rotary air compressor is of the order of__________________?
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MCQs:  Axial flow compressor has the following advantage over centrifugal compressor__________________?
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MCQs:  Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm . The air pressure will be_____________________ ?
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