231. The heating and expanding of a gas is called thermodynamic system.
Yes
No
✅ The correct answer is option B.
Thermodynamics MCQs
232. The area under the temperature-entropy curve (i. e. T – s curve) of any thermodynamic process represents the workdone during the process.
Agree
Disagree
✅ The correct answer is option B.
233. The isothermal and adiabatic processes are regarded as
reversible process
irreversible process
reversible or irreversible process
none of these
✅ The correct answer is option A.
235. The efficiency of Diesel cycle depends upon
temperature limits
pressure ratio
compression ratio
cut-off ratio and comp
✅ The correct answer is option D.
236. One kilowatt is equal to
1 N-m/s
100 N-m
1000 N-m/s
1 x 106 N-m/s
✅ The correct answer is option C.
237. The numerical value of the thermal capacity and the water equivalent of the substance are the same.
Agree
Disagree
✅ The correct answer is option A.
238. The elements are made up of minute and chemically invisible particles as atoms.
TRUE
FALSE
✅ The correct answer is option A.
239. If in the equation pvn = C, the value of n = ∝ , then the process is called
constant volume process
adiabatic process
constant pressure process
isothermal process
✅ The correct answer is option A.
240. Carnot cycle consists of
two constant volume and two isentropic processes
two isothermal and two isentropic processes
two constant pressure and two isentropic processes
one constant volume, o
✅ The correct answer is option B.