Ace the RMO Real Engineer Exam 2025 – Rev Up Your Engineering Genius!

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What would be the approximate volume of refrigerant in a reciprocating refrigeration compressor with a 12-inch bore and 16-inch stroke?

750 cubic inches

850 cubic inches

1002 cubic inches

To calculate the approximate volume of refrigerant in a reciprocating refrigeration compressor, you can use the formula for the volume of a cylinder, since the compressor is effectively cylindrical in shape. The formula for the volume of a cylinder is:

\[ V = \pi \cdot r^2 \cdot h \]

Where \( r \) is the radius of the cylinder and \( h \) is the height (or stroke) of the cylinder.

Given a bore (diameter) of 12 inches, the radius \( r \) would be half of that:

\[ r = \frac{12 \, \text{inches}}{2} = 6 \, \text{inches} \]

The stroke is 16 inches, which represents the height of the cylinder.

Now, you can plug the values into the volume formula:

1. Calculate the area of the base:

\[ A = \pi \cdot (6^2) = \pi \cdot 36 \]

\[ A \approx 113.097 \, \text{square inches} \]

2. Now, substitute into the volume formula:

\[ V = 113.097 \, \text

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1200 cubic inches

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