Follow the rules for working with measurements. An engine has 8 cylinders. Each cylinder has a bore of 2.9 in. diameter and a stroke of 3.2 in. Find its piston displacement. A) 169 in ³ B) 676 in ³ C) 84.5 in ³ D) 42.3 in ³ E) 338 in ³

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Quizplus · Accepted Answer

The piston displacement for one cylinder is calculated using the formula for the volume of a cylinder: $V = \pi r^2 h$, where $r$ is the radius of the cylinder (half of the diameter) and $h$ is the height (or stroke in this context). For one cylinder, $r = 2.9 \, \text{in} / 2 = 1.45 \, \text{in}$ and $h = 3.2 \, \text{in}$. Thus, $V = \pi (1.45)^2 (3.2) \approx 21.2 \, \text{in}^3$. For 8 cylinders, the total displacement is $8 \times 21.2 \, \text{in}^3 \approx 169 \, \text{in}^3$.

Follow the Rules for Working with Measurements