Deck 32: Formulas and Handbook Data

Question 1

What is the diameter of a circle in inches whose circumference is 62.45 inches? Use pi equal to 3.1416 and round the answer to the nearest hundredth.

Answer 1

19.88 inches

Question 2

When making a full development of the slope of a right circular cone the drafter lays out an angle found by using the formula: Slope = R/S ? 360°. Determine the measure of the angle if R = 45 mm and S = 120 mm.

Answer 2

135°

Question 3

Use the following information to solve problems 7 through 10. A drafter must determine several measurements before a gear can be drawn. These measurements are often found by using formulas. Most gear-cutting data can be found if the diametral pitch P and the number of teeth N are known. Given the diametral pitch P is 8, and the number of teeth N is 96, use the following formulas to solve the problems. a. Pitch Diameter D: b. Outside Diameter O: c. Addendum A: d. Thickness of the Gear Tooth T: e. Depth of the Gear Tooth W: Find the pitch diameter D .

Answer 3

12 inches

Question 4

What is the inch equivalent of 56 millimeters? Round the answer to the nearest thousandth as necessary.

Question 5

Formulas are used to obtain dimensions for layout purposes or for the manufacture of a product and the construction of a building.

Question 6

Find the thickness of the gear tooth T . Round the answer to the nearest thousandth.

Question 7

What is the area equivalent, in square inches, of 14 square centimeters?

Question 8

Find the outside diameter O .

Question 9

Find the addendum A . Round the answer to the nearest thousandth.

Question 10

The formula to determine the arithmetic mean or average of a set of n numbers is