Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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The contents of a cylindrical oil cup with a height of 7 inches is most nearly how many cubic inches?

The correct answer is: 88

To determine the volume of a cylindrical oil cup, you can use the formula for the volume of a cylinder, which is given by: Volume = π × r² × h In this formula, π (pi) is approximately 3.14, r is the radius of the cylinder, and h is the height. The height of the oil cup is specified as 7 inches. While the radius is not provided in the question, one can infer reasonable estimations for common sizes. Assuming a standard radius for an oil cup, let’s say the radius is about 2.5 inches. Plugging the value into the formula gives: Volume = π × (2.5)² × 7 = 3.14 × 6.25 × 7 = 3.14 × 43.75 ≈ 137.125 cubic inches However, if your assumption of a smaller radius is closer to 2 inches instead, the calculation would look like this: Volume = π × (2)² × 7 = 3.14 × 4 × 7 = 3.14 × 28 ≈ 87.92 cubic inches