carbon and hydrogen
oxygen and hydrogen
sulphur and oxygen
sulphur and hydrogen
✅ The correct answer is option A.
Thermodynamics MCQs
By decreasing the highest temperature in the Carnot cycle, its efficiency is increased.
TRUE
FALSE
✅ The correct answer is option B.
Carnot cycle has maximum efficiency for
petrol engine
diesel engine
reversible engine
irreversible engine
✅ The correct answer is option C.
The heating of a gas at constant pressure is governed by
Boyle’s law
Charles’ law
Gay-Lussac law
Avogadro’s law
✅ The correct answer is option B.
Kerosene is distilled at
65° to 220°C
220° to 345°C
345° to 470°C
470° to 550°C
✅ The correct answer is option B.
When the expansion or compression takes place according to the law pvn = C, the process is known as
isothermal process
adiabatic process
hyperbolic process
polytropic process
✅ The correct answer is option D.
The universal gas constant (or molar constant) of a gas is the product of
molecular mass of the gas and the gas constant
atomic mass of the gas and the gas constant
molecular mass of the gas and the specific heat at constant pressure
molecular mass of the
✅ The correct answer is option A.
Both the Ericsson and Joule’s cycle have two constant pressure processes.
TRUE
FALSE
✅ The correct answer is option A.