Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free 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 All the processes, taking place in the cycle of operation, must be extremely slow The working parts of the engine must be friction free 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 All the processes, taking place in the cycle of operation, must be extremely slow ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a free expansion process Work done is zero but heat increases Both (A) and (B) above Heat transfer is zero Work done is zero Work done is zero but heat increases Both (A) and (B) above Heat transfer is zero Work done is zero ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Diesel cycle consists of __________ processes. Two constant pressure and two isentropic One constant pressure, one constant volume and two isentropic Two constant volume and two isothermal Two constant volume and two isentropic Two constant pressure and two isentropic One constant pressure, one constant volume and two isentropic Two constant volume and two isothermal Two constant volume and two isentropic ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is cooled at constant pressure, Both temperature and volume increases Its volume increases but temperature decreases Both temperature and volume decreases Its temperature increases but volume decreases Both temperature and volume increases Its volume increases but temperature decreases Both temperature and volume decreases Its temperature increases but volume decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The natural solid fuel is Anthracite coal Coke Pulverised coal Wood Anthracite coal Coke Pulverised coal Wood 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 30 kJ 84 kJ 54 kJ 114 kJ 30 kJ 84 kJ 54 kJ 114 kJ ANSWER DOWNLOAD EXAMIANS APP
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