possible
impossible
✅ The correct answer is option B.
Thermodynamics MCQs
The main cause for the irreversibility is
mechanical and fluid friction
unrestricted expansion
heat transfer with a finite temperature difference
all of the above
✅ The correct answer is option D.
Coke oven gas is obtained by burning coke in an oven.
Agree
Disagree
✅ The correct answer is option B.
It is __________ to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work.
possible
impossible
✅ The correct answer is option B.
The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.
soft coke
hard coke
pulverised coal
bituminous coal
✅ The correct answer is option A.
The temperature at which the volume of a gas becomes zero is called
absolute scale of temperature
absolute zero temperature
absolute temperature
none of these
✅ The correct answer is option B.
The free expansion process is a constant enthalpy process.
Correct
Incorrect
✅ The correct answer is option A.
Boyle’s law states that change of internal energy of a perfect gas is directly proportional to the change of temperature.
Agree
Disagree
✅ The correct answer is option B.
The efficiency of a gas turbine is given by
✅ The correct answer is option B.
The amount of heat given out by the complete combustion of 1 kg of fuel is known as calorific value of solid or liquid fuel.
TRUE
FALSE
✅ The correct answer is option A.