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WorksheetsPlumb Math
Total questions: 40
Worksheet time: 20mins
An example of a whole number is _____.
1/4
0.5
15%
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 _____.
30
60
90
120
Use the √ key on a calculator to _____.
calculate the denominator of a number
divide a number
square a number
find the square root of a number
The improper fraction 14/8 can be converted to the mixed number _____.
1-5/8
1-3/4
2-5/8
2-3/4
3/4 - 1/8 = _____.
1/8
3/8
5/8
7/8
5/8 ÷ 1/2 = _____.
3/5
5/16
1-1/4
1-3/8
2.5 × 5 = _____.
7.5
12.5
75
125
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 _____.
four
six
eight
ten
. 32.5379 rounded to the nearest hundredth is _____.
32.5
32.6
32.53
32.54
5% represented as a decimal is _____.
0.005
0.05
0.5
5.0
Rounded to the nearest eighth of an inch, 0.7 feet equals _____.
6-1/8"
6-3/8"
8-1/8"
8-3/8"
The metric prefix that denotes 1,000 is _____.
deci
centi
milli
kilo
52 = _____.
5
10
25
50
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 _____.
4-1/4"
4-3/4"
5-1/4"
5-3/4"
The center-to-center measurement between two fittings is 30 inches. The fitting allowance is 1-1/4 inch. To fit properly between the two fittings, a length of pipe must be cut to _____.
27-1/2"
28-3/4"
31-1/4"
32-1/2"
A plumber is required to cut a length of steel pipe to connect two 1/2-inch threaded steel tees with a face-to-face measurement of 5 feet. The total length of the pipe should be _____.
5'-2"
5'-1 1/ 2 "
5'-1"
5'-1/2"
A plumber is measuring a length of pipe and has a center dimension. The plumber can determine the length of pipe by _____.
adding the fitting allowance for that end
subtracting the thread makeup for that end
adding the thread makeup for that end
subtracting the fitting allowance for that end
To calculate fitting allowance, measure the fitting from its center to its face, then _____.
add the thread-in measurement
subtract the thread-in measurement
measure the depth of the fitting's socket or thread
use the manufacturer's tables
The square root of 4,225 is _____.
65
650
2,112.5
0.000236
3 acres equals _____.
0.3 hectares
1.2 hectares
4.8 hectares
7.5 hectares
Refer to the figure above. You need to cut a length of a 1-1/2" threaded steel pipe to fill a space between two threaded 45-degree elbows. The center-to-center measurement between the two fittings is 25". The length of the cut pipe should be _____.
23"
24"
26"
27"
Refer to the figure above. You need to cut a length of a 2" threaded steel pipe to fill a space between two threaded tees. The length of the center-to-center measurement between the two fittings is 16". The cut pipe should be _____.
12-1/2"
14-1/4"
18-1/4"
19-1/2"
Refer to the figure above. You need to connect two 1/2-inch threaded steel tees. The end-to-center measurement is 12-1/4". The length of the cut pipe should be _____.
13-1/4"
12-5/8"
11-1/2"
11-5/8"
32 squared is _____.
5.657
64
102.4
1,024
The x2 key on a calculator is used to _____.
calculate the numerator
square a number
find the square root of a number
multiply a number
The part of a fitting that is used the least often when measuring pipe is the _____.
face
center
throat
Back
The expression "one-and-a-half inch pipe, 36 inches center of wye to face of ell" can also be written as _____.
1-1/2" 36" F ell-C wye
1-1/2" 36" C wye-F ell
36" 1-1/2" C wye-F ell
36" 1-1/2" F ell-C wye
The number of units of measurement in the modern metric system is _____.
seven
six
five
four
A box of 60 threaded steel elbows is delivered to your job site. Your supervisor asks you to separate them into groups of five elbows. The number of groups you will end up with is _____.
6
8
10
12
A plumber adds 6.25" of pipe to an existing line that is 10.5' long. Expressed as a fraction, the length of the extended pipe, not including the fitting, is now _____.
16-3/4"
109-3/4"
126"
132-1/4"
0.44' converted into the nearest sixteenth of an inch is _____.
5/16"
5-5/16"
5.28"
9-1/2"
The length of a pipe or a fitting is measured along the _____.
centerline
center point
face
Throat
The expression "two-inch pipe, 15 inches end to back of ell" can also be written as _____.
15" 2" E-B ell
15" 2" B ell-E
2" 15" E-B ell
2" 15" B ell-E
To find how many centimeters are in 12 meters, move the decimal point _____.
three places to the right
three places to the left
two places to the right
two places to the left
1.68 expressed as a lowest common denominator fraction is _____.
1-34/50
1-17/50
1-7/25
1-17/25
1/4 + 6/8 = _____.
5/8
7/8
1
1-1/2
A plumber is preparing a two-part pipe adhesive compound. The manufacturer's instructions say that the final mixture should consist of 30% of compound A and 70% of compound B. The plumber has one quart of compound B. The amount of compound A required, expressed as a decimal, is _____.
0.003
0.03
0.3
3
173.92 expressed as a percentage is _____.
17,392%
1,739.2%
173.92%
17.39%
The end-to-end measurements of a length of steel pipe required to connect 3/4" threaded steel tees, if the face-to-face measurement is 5-1/4", is _____.
6-3/4"
6-1/4"
6"
5-3/4"
To find the square root of a large or complex number using a calculator, enter the number and then press _____.
√
√ and =
x2
x2 and =
