Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow All of these 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 the processes, taking place in the cycle of operation, must be extremely slow All of these 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 Calorie is a measure of Specific heat Quantity of heat Entropy Thermal capacity Specific heat Quantity of heat Entropy Thermal capacity ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Select the wrong statement All of these A Joule cycle consists of two constant volume and two isentropic processes. An Ericsson cycle consists of two constant pressure and two isothermal processes. An Otto cycle consists of two constant volume and two isentropic processes. All of these A Joule cycle consists of two constant volume and two isentropic processes. An Ericsson cycle consists of two constant pressure and two isothermal processes. An Otto cycle consists of two constant volume and two isentropic processes. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel. None of these Combustion Atomization Carbonization None of these Combustion Atomization Carbonization ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to First law of thermodynamics, Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant Work-done by a system is equal to the heat transferred by the system Total energy of a system remains constant Internal energy, enthalpy and entropy during a process remain constant Total internal energy of a system during a process remains constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS