Engineering Thermodynamics
The condition for the reversibility of a cycle is

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
All of these
The working parts of the engine must be friction free

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
None of these
It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body
It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Engineering Thermodynamics