Engineering Thermodynamics Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle Expansion and compression are isentropic Heat rejection is lower Combustion is at constant volume Maximum temperature is higher Expansion and compression are isentropic Heat rejection is lower Combustion is at constant volume Maximum temperature is higher ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On volume basis, air contains following parts of oxygen 21 77 25 23 21 77 25 23 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat and mechanical energies are mutually convertible. This statement was established by Boyle Charles None of these Joule Boyle Charles None of these Joule ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat energy stored in the gas and used for raising the temperature of the gas is known as Molecular energy External energy Kinetic energy Internal energy Molecular energy External energy Kinetic energy Internal energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Kinetic theory of gases assumes that the collisions between the molecules are Perfectly inelastic Partly inelastic Perfectly elastic Partly elastic Perfectly inelastic Partly inelastic Perfectly elastic Partly elastic ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following statement is correct according to Clausis statement of second law of thermodynamics? It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source. None of these It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle. It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source. None of these It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle. ANSWER DOWNLOAD EXAMIANS APP
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