Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Calorie is a measure of Quantity of heat Entropy Thermal capacity Specific heat Quantity of heat Entropy Thermal capacity Specific heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle approaches to Otto cycle efficiency when Cut-off is decreased Cut-off is increased Cut-off is constant Cut-off is zero Cut-off is decreased Cut-off is increased Cut-off is constant Cut-off is zero ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A tri-atomic molecule consists of __________ atoms. Four Three Two One Four Three Two One ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The mass of excess air supplied is equal to (23/100) × Mass of excess oxygen (23/100) × Mass of excess carbon (100/23) × Mass of excess oxygen (100/23) × Mass of excess carbon (23/100) × Mass of excess oxygen (23/100) × Mass of excess carbon (100/23) × Mass of excess oxygen (100/23) × Mass of excess carbon ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature, and dQ = Heat absorbed or rejected) δQ = T/ds None of the listed here dQ = ds/T δQ = T.ds δQ = T/ds None of the listed here dQ = ds/T δQ = T.ds ANSWER DOWNLOAD EXAMIANS APP
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