2019 2020 ASVAB For Dummies with Online Practice by Angie Papple Johnston

Author:Angie Papple Johnston
Language: eng
Format: epub
ISBN: 9781119560722
Publisher: Wiley
Published: 2019-06-25T00:00:00+00:00

Using the mathematics of mechanics

Mechanical principles are based on mathematical principles. Therefore, a screw making a complete revolution turns 360 degrees, because a mathematical principle states that 360 degrees are in a circle, a complete revolution. If you have to know the surface area of a floor to determine the pounds per square inch that a ton of tile would put on the floor, that’s a mathematical principle, too .

Suppose you run across this question:

A 3-inch-diameter flanged pipe with six holes is being fitted to a base with six holes. What’s the maximum number of degrees the pipe must be rotated in order to line up the holes?

(A) 120 degrees

(B) 180 degrees

(C) 60 degrees

(D) 360 degrees

This isn’t really a Mechanical Comprehension question at all — it’s a math question. The only part that requires mechanical knowledge is knowing that the holes are spaced equally distant from one another on a flanged pipe. The answer is , Choice (C).

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