An IC engine has a bore and stroke of 2 units each. The

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An IC engine has a bore and stroke of 2 units each. The area to calculate heat loss can be taken as

1. 4 π
2. 5π
3. 6 π
4. 4

Correct Option: A

Total area for heat loss = surface area of cylinder = πdl = π × 2 × 2 = 4π