Which of the following is the correct statement?
A. All the reversible engines have the same efficiency.
B. All the reversible and irreversible engines have the same efficiency.
C. Irreversible engines have maximum efficiency.
D. All engines are designed as reversible in order to obtain maximum efficiency.
Answer: Option C
This Question Belongs to Mechanical Engineering >> Engineering Thermodynamics
Join The Discussion
Comments ( 7 )
Addition of heat at constant pressure to a gas results in
A. Raising its temperature
B. Raising its pressure
C. Raising its volume
D. Raising its temperature and doing external work
Which of the following items is not a path function?
A. Heat
B. Work
C. Kinetic energy
D. Thermal conductivity
An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is
A. Feasible
B. Impossible
C. Possible
D. Possible, but with lot of sophistications
The absolute zero pressure can be attained at a temperature of
A. 0°C
B. -273°C
C. 273 K
D. None of these
All anwer is wrong
Irresponsible answering
All the reversible engines have the same efficiency between the same temp limit ya reversible efficiency greater than irreversible
All the reversible engines have the same efficiency between the same temp limit ya reversible efficiency greater than irreversible
The answer should be A
Option A is correct
Are you sure about the answer