Engineering Thermodynamics A process, in which the temperature of the working substance remains constant during its expansion or compression, is called Polytropic process Hyperbolic process Isothermal process Adiabatic process Polytropic process Hyperbolic process Isothermal process Adiabatic process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is Not possible Cost will be very high Theoretically possible May be possible with lot of sophistications Not possible Cost will be very high Theoretically possible May be possible with lot of sophistications ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? All of these It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source All of these It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carbonization of coal consists of None of these Drying and crushing the coal to a fine powder Heating the wood with a limited supply of air to temperature not less than 280°C Moulding the finely ground coal under pressure with or without a binding material None of these Drying and crushing the coal to a fine powder Heating the wood with a limited supply of air to temperature not less than 280°C Moulding the finely ground coal under pressure with or without a binding material ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Petrol is distilled at 65° to 220°C 470° to 550°C 220° to 345°C 345° to 470°C 65° to 220°C 470° to 550°C 220° to 345°C 345° to 470°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An open system is one in which Both energy and mass cross the boundaries of the system Neither mass nor energy crosses the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Mass crosses the boundary but not the energy Both energy and mass cross the boundaries of the system Neither mass nor energy crosses the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Mass crosses the boundary but not the energy ANSWER DOWNLOAD EXAMIANS APP
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