Introduction to Plumbing Math – Key Concepts and Practice Questions

Introduction to Plumbing Math


An example of a whole number is _____. - ANS 47

You have ordered a total of 15 bundles of PVC pipe. Each bundle contains 6 lengths of
pipe. In total, the
number of lengths of pipe in your order is _____. - ANS 90

Use the √ key on a calculator to _____. - ANS find the square root of a number

The improper fraction 14/8 can be converted to the mixed number _____. - ANS 1-3/4

3/4 - 1/8 = _____. - ANS 5/8

5/8 ÷ 1/2 = _____. - ANS 1-1/4

2.5 × 5 = _____. - ANS 12.5

You have a pipe that measures 40 inches in length. For an installation, you need several
short sections of pipe
that are 6.5 inches long each. By cutting the 40-inch pipe, the total number of 6.5-inch
sections that you will
end up with is _____. - ANS six

32.5379 rounded to the nearest hundredth is _____. - ANS 32.54

5% represented as a decimal is _____. - ANS 0.05

Rounded to the nearest eighth of an inch, 0.7 feet equals _____. - ANS 8-3/8"

The metric prefix that denotes 1,000 is _____. - ANS kilo

5 squared = _____. - ANS 25

The center-to-face measurement of a threaded joint is 5 inches, and the thread-in
measurement is 3/4 inch.
The fitting allowance is calculated as _____. - ANS 4-1/4"