The Otto engine consumes 9 liters of petrol per hour and develops 30 k – McqOptions

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1.	The Otto engine consumes 9 liters of petrol per hour and develops 30 kW. The specific gravity of petrol is 0.8 and its calorific value is 45000 kJ/kg. What is the indicated thermal efficiency of the engine?
A.	33.33%
B.	25%
C.	30%
D.	32%
Answer» E.

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