Engineering Thermodynamics
For same compression ratio and for same heat added

Efficiency depends on other factors
Otto cycle is more efficient than Diesel cycle
Diesel cycle is more efficient than Otto cycle
Both Otto and Diesel cycles are equally efficient

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Engineering Thermodynamics
An open system is one in which

Mass does not cross boundaries of the system, though energy may do so
Neither mass nor energy crosses the boundaries of the system
Both energy and mass cross the boundaries of the system
Mass crosses the boundary but not the energy

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Engineering Thermodynamics
Which is the incorrect statement about Carnot cycle?

All of these
All the heat engines are based on Carnot cycle
It is used as the alternate standard of comparison of all heat engines
It provides concept of maximising work output between the two temperature limits

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