Engineering Thermodynamics The entropy __________ in an irreversible cyclic process. Remains constant None of these Increases Decreases Remains constant None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following variables controls the physical properties of a perfect gas? All of these Pressure Volume Temperature All of these Pressure Volume Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free All of these All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process The working parts of the engine must be friction free All of these All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when Process is isentropic Process is isentropic and specific heat does not change with temperature Flow is uniform and steady Process is isothermal Process is isentropic Process is isentropic and specific heat does not change with temperature Flow is uniform and steady Process is isothermal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle depends upon Temperature limits Pressure ratio Cut-off ratio and compression ratio Compression ratio Temperature limits Pressure ratio Cut-off ratio and compression ratio Compression ratio ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The volumetric or molar specific heat at constant pressure is the product of Molecular mass of the gas and the specific heat at constant volume None of the listed here Molecular mass of the gas and the gas constant Atomic mass of the gas and the gas constant Molecular mass of the gas and the specific heat at constant volume None of the listed here Molecular mass of the gas and the gas constant Atomic mass of the gas and the gas constant ANSWER DOWNLOAD EXAMIANS APP
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