23.97 bar
25 bar
26.03 bar
34.81 bar
✅ The correct answer is option C.
Thermodynamics MCQs
In a reversible adiabatic process, the ratio of T1/T2 is equal to
✅ The correct answer is option B.
The efficiency of a dual combustion cycle __________ upon cut-off ratio.
depends
does not depend
✅ The correct answer is option A.
The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)
✅ The correct answer is option C.
The efficiency of the Carnot cycle may be increased by
increasing the highest temperature
decreasing the highest temperature
increasing the lowest temperature
keeping the lowest tem
✅ The correct answer is option A.
The hard coke is obtained when carbonisation of coal is carried out at
300° to 500°C
500° to700°C
700° to 900°C
900° to 1100°C
✅ The correct answer is option D.
The compression ratio is the ratio of
swept volume to total volume
total volume to swept volume
swept volume to clearance volume
total volume to cleara
✅ The correct answer is option D.
The gas constant (R) is equal to the
sum of two specific heats
difference of two specific heats
product of two specific heats
ratio of two specific
✅ The correct answer is option B.
Briquetted coal is produced from the finely ground coal by moulding under pressure with or without a binding material.
TRUE
FALSE
✅ The correct answer is option A.
In open cycle gas turbine plants
the indirect heat exchanger and cooler is avoided
direct combustion system is used
a condenser is used
all of the above
✅ The correct answer is option D.