A.Decreases
B.Increases
C.Does not change
D.Will be equal to the efficiency of a practical engine
E.Depends on their factors
Related Mcqs:
- If the temperature of the sink is decreased, the efficiency of a Carnot engine
- Three Carnot engines A, B and C having source temperature of 750?K, 700?K and 650?K have sink temperatures respectively 400?k, 350?k and 300?k. Which engine is the least efficient?
- Three engines A, B and C operating on Carnot cycle use working substances as oxygen, hydrogen and air. Which engine will have higher efficiency?
- A heat engine works on a Carnot cycle with a heat sink at a temperature of 27?C. The efficiency of the engine is 10%, the temperature of the heat source is
- When metallic surfaces are oxidized the emissivity
- Rankine cycle efficiency for a power plant is 29.6%. The Carnot cycle efficiency will be
- When steam expands without doing mechanical work, its enthalpy
- The thermal efficiency of a dual cycle engine with fixed compression ratio and fixed quantity of het and with increase in pressure ratio, will
- The thermal efficiency of CI engine is:
- In a reversible cycle, the entropy of the system
