A. flow is uniform and steady
B. process is isentropic
C. process is isothermal
D. process is isentropic and specific heat does not change with temperature
E. process is isentropic and specific heat changes with temperature
Related Mcqs:
- The ratio of two specific heats of air is equal to____________________?
A. 0.17
B. 0.24
C. 0.1
D. 1.41
E. 2.71 - For same compression ratio and for same heat added_________________?
A. Otto cycle is more efficient than Diesel cycle
B. Diesel cycle is more efficient than Otto cycle
C. efficiency depends on other factors
D. both Otto and Diesel cycles are equally efficient
E. none of the above - Minimum work in compressor is possible when the value of adiabatic index n is equal to_________________?
A. 0.75
B. 1
C. 1.27
D. 1.35
E. 2 - Specific heat of air at constant pressure is equal to___________________?
A. 0.17
B. 0.21
C. 0.24
D. 1.0
E. 1.41 - The specific heat of air increases with increase in __________________?
A. temperature
B. pressure
C. both pressure and temperature
D. variation of its constituents
E. air flow - 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 - The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will______________?
A. increase
B. decrease
C. remain unchanged
D. increase/decrease depending on ap-plication
E. unpredictable - The ideal efficiency of a Brayton cycle without regeneration with increase ni pressure ratio will_________________?
A. increase
B. decrease
C. remain unchanged
D. increase/decrease depending on application
E. unpredictable - According to Avogadro’s Hypothesis ______________________?
A. the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature
B. the sum of partial pressure of mixture of two gases is sum of the two
C. product of the gas constant and the molecular weight of an ideal gas is constant
D. gases have two values of specific heat
E. all systems can be regarded as closed systems - Measurement of temperature is based on_________________?
A. thermodynamic properties
B. zeroth law of thermodynamics
C. first law of thermodynamics
D. second law of thermodynamics
E. joule’s law
