Industrial Maintenance Technician Practice Test

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What is the inside diameter of tubing with an outside diameter of 2" and a wall thickness of 1/16"?

1 7/8"

To find the inside diameter of a piece of tubing, you need to take the outside diameter and subtract twice the wall thickness (since the wall thickness applies to both sides of the tubing).

In this case, the outside diameter is 2 inches, and the wall thickness is 1/16 inch. To calculate the inside diameter, you first convert the wall thickness to a decimal for easier computation:

1/16 inch is equal to 0.0625 inches. Therefore, you would subtract twice the wall thickness from the outside diameter:

2 inches - (2 x 0.0625 inches) = 2 inches - 0.125 inches = 1.875 inches.

Converting 1.875 inches to a fraction, you find that it equals 1 7/8 inches. Hence, the inside diameter of the tubing is 1 7/8 inches.

Understanding how to work with measurements and conversions like this is crucial in industrial maintenance, as accurate dimensions are essential for proper fitting and functioning of equipment.

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1 3/4"

1 5/8"

2 1/16"

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