Engineering Thermodynamics The hard coke is obtained when carbonization of coal is carried out at 500° to 700°C 900° to 1100°C 700° to 900°C 300° to 500°C 500° to 700°C 900° to 1100°C 700° to 900°C 300° to 500°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is All of these 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 The working parts of the engine must be friction free All of these 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 The working parts of the engine must be friction free ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for petrol engines is 5 to 8 10 to 20 3 to 6 15 to 30 5 to 8 10 to 20 3 to 6 15 to 30 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A sudden fall in the barometer reading is a sign of approaching Rains Cold wave Storm Fine weather Rains Cold wave Storm Fine weather ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When the gas is heated at constant volume, the heat supplied Increases the internal energy of the gas and increases the temperature of the gas None of these Both (A) and (B) Does some external work during expansion Increases the internal energy of the gas and increases the temperature of the gas None of these Both (A) and (B) Does some external work during expansion ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The change of entropy, when heat is absorbed by the gas, is Negative None of these Positive Positive or negative Negative None of these Positive Positive or negative ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS