Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy 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 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 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 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 One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas. 4/7 All of the listed here 11/4 9/7 4/7 All of the listed here 11/4 9/7 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The amount of heat generated per kg of fuel is known as Lower calorific value Calorific value Higher calorific value Heat energy Lower calorific value Calorific value Higher calorific value Heat energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied Free expansion or friction resisted expansion/compression process should not be encountered When heat is being absorbed, temperature of hot source and working substance should be same All of these When beat is being rejected, temperature of cold source and working substance should be same Free expansion or friction resisted expansion/compression process should not be encountered When heat is being absorbed, temperature of hot source and working substance should be same All of these When beat is being rejected, temperature of cold source and working substance should be same ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following statement is correct according to Clausis statement of second law of thermodynamics? None of these It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature. It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source. None of these It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature. It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following items is not a path function? Kinetic energy Thermal conductivity Work Heat Kinetic energy Thermal conductivity Work Heat ANSWER DOWNLOAD EXAMIANS APP
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