Engineering Thermodynamics Which of the following is the correct statement? Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. Irreversible engines have maximum efficiency. All the reversible engines have the same efficiency. All the reversible and irreversible engines have the same efficiency. All engines are designed as reversible in order to obtain maximum efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency 2 43834 43835 Zero 2 43834 43835 Zero ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas. Both (A) and (B) Change None of these Do not change Both (A) and (B) Change None of these Do not change ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The increase in entropy of a system represents Degradation of energy Increase in temperature Increase in availability of energy Decrease in pressure Degradation of energy Increase in temperature Increase in availability of energy Decrease in pressure ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Molecular volume of any perfect gas at 600 × 103 N/m² and 27°C will be 4.17 m3/kg mol 400 m3/kg mol 0.15 m3/kg mol 41.7 m3/kg mol 4.17 m3/kg mol 400 m3/kg mol 0.15 m3/kg mol 41.7 m3/kg mol ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Kinetic theory of gases assumes that the collisions between the molecules are Perfectly inelastic Partly elastic Perfectly elastic Partly inelastic Perfectly inelastic Partly elastic Perfectly elastic Partly inelastic ANSWER DOWNLOAD EXAMIANS APP
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