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 The increase in entropy of a system represents Increase in availability of energy Increase in temperature Decrease in pressure Degradation of energy Increase in availability of energy Increase in temperature Decrease in pressure Degradation of energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Petrol is distilled at 220° to 345°C 470° to 550°C 345° to 470°C 65° to 220°C 220° to 345°C 470° to 550°C 345° to 470°C 65° to 220°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero pressure can be attained at a temperature of -273°C 0°C None of these 273 K -273°C 0°C None of these 273 K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as Free expansion Adiabatic expansion Hyperbolic expansion Throttling Free expansion Adiabatic expansion Hyperbolic expansion Throttling ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The principal constituents of a fuel are Sulphur and hydrogen Oxygen and hydrogen Sulphur and oxygen Carbon and hydrogen Sulphur and hydrogen Oxygen and hydrogen Sulphur and oxygen Carbon and hydrogen ANSWER DOWNLOAD EXAMIANS APP
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