Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow All of these The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All the processes, taking place in the cycle of operation, must be extremely slow All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A cycle consisting of two adiabatic and two constant pressure processes is known as Otto cycle Stirling cycle Joule cycle Ericsson cycle Otto cycle Stirling cycle Joule cycle Ericsson cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process, in which the temperature of the working substance remains constant during its expansion or compression, is called Hyperbolic process Isothermal process Adiabatic process Polytropic process Hyperbolic process Isothermal process Adiabatic process Polytropic process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle with decrease in cut-off Increases First decreases and then increases Decreases First increases and then decreases Increases First decreases and then increases Decreases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Steam coal is a Brown coal Non-coking bituminous coal Pulverized coal Coking bituminous coal Brown coal Non-coking bituminous coal Pulverized coal Coking bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called Hyperbolic expansion Adiabatic expansion Parabolic expansion Free expansion Hyperbolic expansion Adiabatic expansion Parabolic expansion Free expansion ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS