calorific value
heat energy
lower calorific value
higher calorific value
✅ The correct answer is option A.
Thermodynamics MCQs
Coal gas consists mainly of hydrogen, carbon monoxide and various hydrocarbons.
Agree
Disagree
✅ The correct answer is option A.
Otto cycle consists of
two constant volume and two isentropic processes
two constant pressure and two isentropic processes
two constant volume and two isothermal processes
one constant pressure,
✅ The correct answer is option A.
It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
Correct
Incorrect
✅ The correct answer is option A.
The heating of a gas at constant pressure is governed by Charles’ law.
TRUE
FALSE
✅ The correct answer is option A.
The throttling process is __________ process.
reversible
irreversible
reversible or irreversible
✅ The correct answer is option B.
When a fluid is allowed to expand suddenly into a vaccum chamber through an orifice of large dimensions, the process is known as free expansion process.
TRUE
FALSE
✅ The correct answer is option A.
All perfect gases change in volume by 1 / 273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called
Boyle’s law
Charles’ law
Gay-Lussac law
Joule’s law
✅ The correct answer is option B.
When a perfect gas is expanded through an aperture of minute dimensions, the process is known as
isothermal process
adiabatic process
free expansion process
throttling process
✅ The correct answer is option D.
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by
Kelvin
Joule
Clausis
Gay-Lussac
✅ The correct answer is option C.