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.Management Sciences
Category: Thermodynamics
Carnot cycle has maximum efficiency for__________________?
A. reversible engine
B. irreversible engine
C. new engine
D. petrol engine
E. diesel engine
The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is________________?
A. 29.27 J/kmol°K
B. 83.14J/kmol°K
C. 848J/kmol°K
D. All J/kmol °K
E. 735 J/kmol °K
Kinetic theory of gases assumes that the collisions between the molecules are________________?
A. perfectly elastic
B. perfectly inelastic
C. partly elastic
D. partly inelastic
E. partly elastic and partly inelastic
Which law states that the specific heat of a gas remains constant at all temperatures and pressures______________________?
A. Charles’ Law
B. Joule’s Law
C. Regnault’s Law
D. Boyle’s Law
E. there is no such law
Heat and work are ____________________?
A. point functions
B. system properties
C. path functions
D. intensive properties
E. extensive properties
If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle___________________?
A. more
B. less
C. equal
D. depends on other factors
E. none of the above
The unit of energy in S.I. units is________________?
A. watt
B. joule
C. joule/s
D. joule/m
E. joule m.
Stirling and Ericsson cycles are__________________?
A. reversible cycles
B. irreversible cycles
C. quasi-static cycles
D. semi-reversible cycles
E. adiabatic irreversible cycles
Which of the following cycles has maximum efficiency_____________?
A. Rankine
B. Stirling
C. Carnot
D. Brayton
E. Joule
Work done in a free expansion process is___________________?
A. + ve
B. -ve
C. zero
D. maximum
E. minimum
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