What is the formula used to calculate engine displacement?

The correct answer is based on the formula for calculating engine displacement, which considers the volume of the cylinders in an engine. The displacement of an engine is determined by calculating the volume of one cylinder and then multiplying that by the number of cylinders in the engine.

The formula for the volume of a single cylinder involves the bore (the diameter of the cylinder) and the stroke (the length of the cylinder's travel). Specifically, the volume of one cylinder can be calculated using the formula:

[ \text{Volume} = \text{Bore}^2 \times \text{Stroke} \times \pi / 4 ]

However, in this context, the value of (\pi) is approximately 3.14, and the multiplication by (\frac{1}{4}) comes from the circular area formula (\pi r^2) where the radius is half of the bore. This factor is included in the more detailed calculation of option B, which also incorporates multiplying by 0.7854 (which is (\pi / 4)) and multiplying by the number of cylinders to get the total engine displacement.

This explanation highlights the importance of the bore, stroke, and the number of cylinders in