Larger, heavier industrial engines run most efficiently with lower cooling water temps. In the absence of a specified temp these might be taken to be:

Larger, heavier industrial engines run most efficiently with lower cooling water temps. In the absence of a specified temp these might be taken to be:


a) 30-45 Celsius
b) 45-60 Celsius
c) 50-65 Celsius
d) 70-85 Celsius


Answer: c


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