Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On weight basis, air contains following parts of oxygen 73 21 25 23 73 21 25 23 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv). Equal to More than None of these Less than Equal to More than None of these Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carnot cycle efficiency is maximum when Final temperature is 0°K Initial temperature is 0°K Difference between initial and final temperature is 0°K Final temperature is 0°C Final temperature is 0°K Initial temperature is 0°K Difference between initial and final temperature is 0°K Final temperature is 0°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas. All of the listed here 4/7 11/4 9/7 All of the listed here 4/7 11/4 9/7 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The fuel mostly used in steam boilers is Brown coal Peat Coking bituminous coal Non-coking bituminous coal Brown coal Peat Coking bituminous coal Non-coking bituminous coal ANSWER DOWNLOAD EXAMIANS APP
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