Q.

A four sylinder four stroke petrol engine running at 1000 rpm will have in all how many sparks in one minute?

A. 250
B. 500
C. 1000
D. 2000
E. None of the above
Answer» B. 500
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Discussion

Wani Aamir
5 months ago

Correct answer is 2000 because the working strokes per minute is equal to the (RPM x the number of cylinders) divided by 2
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