Engineering Thermodynamics The ___ is obtained when carbonization of coal is carried out at 500° to 700° C. Pulverized coal Bituminous coal Soft coal Hard coal Pulverized coal Bituminous coal Soft coal Hard coal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents Heat rejected Either heat absorbed or heat rejected None of the listed here Heat absorbed Heat rejected Either heat absorbed or heat rejected None of the listed here Heat absorbed ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is an intensive property of a thermodynamic system? Volume Energy Mass Temperature Volume Energy Mass Temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A cycle consisting of ___ and two isothermal processes is known as Stirling cycle. Two isentropic One constant pressure, one constant volume Two constant volume Two constant pressure Two isentropic One constant pressure, one constant volume Two constant volume Two constant pressure ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The change of entropy, when heat is absorbed by the gas, is None of these Negative Positive or negative Positive None of these Negative Positive or negative Positive ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these The working parts of the engine must be friction free ANSWER DOWNLOAD EXAMIANS APP
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