isothermal
isentropic
polytropic
none of these
✅ The correct answer is option B.
Thermodynamics MCQs
The natural petroleum may be separated into
petrol
kerosene
fuel oil
lubricating oil
✅ The correct answer is option D.
A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called
isothermal process
hyperbolic process
adiabatic process
polytropic process
✅ The correct answer is option C.
One kg of hydrogen requires 8 kg of oxygen and produces
1 kg of water
7 kg of water
8 kg of water
9 kg of water
✅ The correct answer is option D.
The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as
law of equipartition of energy
law of conservation of energy
law of degradation of energy
none of these
✅ The correct answer is option A.
The unit of power in S.I. units is kilowatt.
TRUE
FALSE
✅ The correct answer is option A.
To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.
Yes
No
✅ The correct answer is option A.
The value of cp/cv for air is
1
1.4
1.8
23
✅ The correct answer is option B.
The value of one bar (in S. I. units) is equal to
1 x 102 N/m2
1 x 103 N/m2
1 x 104 N/m2
1 x 105 N/m2
✅ The correct answer is option D.
The gas in cooling chamber of a closed cycle gas turbine is cooled at
constant volume
constant temperature
constant pressure
none of these
✅ The correct answer is option C.