Thermodynamics Test Questions

Q.  What is the purpose of using free-shaft turbine?

a. to increase net work output of the turbine
b. to decrease net work output of the turbine
c. to increase part load efficiency
d. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Any attainable value of absolute temperature is ________
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MCQs:  Assume that a reversible heat engine is operating between a source at T1 and a sink at T2. If T2 decreases, the efficiency of the heat engine ______
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MCQs:  The irreversibility in the system caused by friction is an example of
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MCQs:  When a process becomes irreversible due to heat interaction between system and surrounding at the boundary due to finite temperature gradient, then the irreversibility is______
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MCQs:  The degree of disorder of a mixture of two gases
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MCQs:  What is the relation between thermodynamic probability (W) and entropy?
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MCQs:  At the most probable state of a system the entropy of the system is
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MCQs:  At the state of perfect order (W = 1) of pure crystalline substance, how is the zero entropy defined?
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MCQs:  What is the reason behind the fact that the absolute zero entropy value is not attainable?
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MCQs:  What is the entropy chosen at the triple point of water?
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MCQs:  What is the difference between work done by a system through an ideal reversible process and actual work done by the system called?
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MCQs:  Which will be a suitable condition of exergy loss and entropy generation for thermodynamically efficient process?
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MCQs:  What is the value of exergy in general?
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MCQs:  What is the dryness fraction (x) on saturated vapour line?
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MCQs:  In a mixture of ideal gases of volume V and temperature T, what is the pressure exerted by each individual gas if it occupies the total volume V alone at temperature T called?
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MCQs:  What is the entropy change when the system is at stable equilibrium state?
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MCQs:  What is the entropy of the system at equilibrium state?
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MCQs:  As the heat rejection temperature decreases in the vapour power cycle below atmospheric pressure,
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MCQs:  What should be the critical temperature of working fluid for maximum efficiency of vapour power cycle?
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MCQs:  The specific heat of the ideal working fluid used in vapor power cycle
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