Deck 14: Applied Plumbing Mathematics

Question 1

Convert 358 inches to feet and inches.

Answer 1

29 feet 10 inches

Question 2

Three equal length nipples, plus a union (1- $\frac{1}{2}$ inch laying length), plus a tee (laying length 3 inches), plus two ells (laying length 1- $\frac{3}{4}$ inches) are made up going from one ell to the other ell. If the c-c distance between the ells is 20 inches, what is the length of each nipple?

Answer 2

$\frac{3}{8}$

Question 3

What is the cube root of 1,728?

Answer 3

12

Question 4

Assuming $\frac{1}{2}$ inch of solder is needed for each joint, how many tees can be soldered with a 50-foot roll of solder?

Question 5

How many 2 foot 9 inch pipe segments can be cut from a 20-foot length of pipe?

Question 6

Find the cube root of 18.

Question 7

How much pipe is needed to cut 15 pieces 1 foot 9 inches long?

Question 8

What is the cube root of 33?

Question 9

Convert $\frac{3}{8}$ to a decimal.

Question 10

Find the square root of 48.

Question 11

Convert 163 inches to feet and inches.

Question 12

How many 14-inch pipe segments can be cut from a 20-foot length of pipe?

Question 13

If the center-to-center distance of two pipes is 26 inches and two elbows and a segment of pipe is used to join them, what is the length of the pipe? Assume the elbows have an allowance of $\frac{1}{2}$ inch each.

Question 14

What is the cube of 3?

Question 15

How many 45-inch pieces can be cut from a 100-foot roll of pipe?

Question 16

Convert $\frac{9}{16}$ to a decimal.

Question 17

What is the cube of 12?

Question 18

Convert 20 feet 3 inches to inches.

Question 19

What is the square of 63?

Question 20

What is the cube root of 50?