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 A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is 114 kJ 84 kJ 30 kJ 54 kJ 114 kJ 84 kJ 30 kJ 54 kJ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for Diesel engines is 20 to 30 5 to 8 3 to 6 15 to 20 20 to 30 5 to 8 3 to 6 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In closed cycle gas turbine, the air is compressed None of these Isothermally Polytropically Isentropically None of these Isothermally Polytropically Isentropically ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Select the wrong statement An Ericsson cycle consists of two constant pressure and two isothermal processes. All of these An Otto cycle consists of two constant volume and two isentropic processes. A Joule cycle consists of two constant volume and two isentropic processes. An Ericsson cycle consists of two constant pressure and two isothermal processes. All of these An Otto cycle consists of two constant volume and two isentropic processes. A Joule cycle consists of two constant volume and two isentropic processes. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When gas is heated at constant pressure, the heat supplied is utilized in Increasing the internal energy of gas None of these Increasing the internal energy of gas and also for doing some external work Doing some external work Increasing the internal energy of gas None of these Increasing the internal energy of gas and also for doing some external work Doing some external work ANSWER DOWNLOAD EXAMIANS APP
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