Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 + (1/ rγ - 1) 1 - rγ - 1 1 + rγ - 1 1 - (1/ rγ - 1) 1 + (1/ rγ - 1) 1 - rγ - 1 1 + rγ - 1 1 - (1/ rγ - 1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is None of these Less than one Greater than one Equal to one None of these Less than one Greater than one Equal to one ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ratio of molar specific heats for mono-atomic gas is 1 1.87 1.67 1.4 1 1.87 1.67 1.4 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The temperature at which the volume of a gas becomes zero is called Absolute zero temperature None of these Absolute temperature Absolute scale of temperature Absolute zero temperature None of these Absolute temperature Absolute scale of temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The more effective way of increasing efficiency of Carnot engine is to Increase lower temperature Decrease higher temperature Increase higher temperature Decrease lower temperature Increase lower temperature Decrease higher temperature Increase higher temperature Decrease lower temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics During throttling process All of these There is no change of internal energy of steam No work is done by expanding steam Heat exchange does not take place All of these There is no change of internal energy of steam No work is done by expanding steam Heat exchange does not take place ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS