Plumbing Math & Pressure Calculations for UPC Journeyman Plumber

Convert:

7.58’ to feet and fractional inches.

7’ 7”

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How tall is a water tower if the pressure at the base is 55 psi?

127 feet

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What is the pressure if the water source is 155 feet above the point of delivery?

67.1 psi

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Calculate the diagonal for a rolling offset made with two 45 degree fittings which has a rise of 8 inches and an offset of 7 inches.

15.03 inches

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Convert 8’ 7 1/4” to decimal feet.

8.60’

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Calculate the volume of a cylindrical tank that has a diameter of 30’ and a height of 20’. (Use Pi = 3.14)

14,130 cubic feet

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Calculate the diagonal for a pipe that offsets 36 inches using two 45 degree fittings.

50.9 inches

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Convert:

75 gallons into weight measurement in pounds.

625 pounds

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A toilet costs $257.00 at the supplier. The plumber will sell the toilet with a markup of 25%. What is the new price for the toilet?

$321.25

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Find the drop if the grade is 1/8” per foot and the run is 100 feet.

12 1/2”

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Calculate the measurement for M if the spread between pipes in parallel is 10” and J is 17 “.

12 7/8”

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Calculate the measurement for N if the offset between pipes in parallel is 9”.

12 3⁄4”

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Calculate the measurement for O if the spread between pipes is 10” and L is 16”.

20 1/8”

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Find the drop if the grade is 1/4” per foot and the run is 30 feet.

7 1/2”

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Find the percentage grade if the drop is 5 inches and the run is 40 feet.

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Convert:

2.375” to fractional inches.

2 3/8”

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Convert:

8 3/16” to decimal inches.

8.187”

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Calculate the diagonal for a pipe that offsets 40 inches using two 45 degree fittings

56.5 inches

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Convert:

39’ 9 7/8” to decimal feet.

39.82

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Find the drop if the percentage grade is 1% and the run is 40 feet.

4 7/8”

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Find the area of a tank base that has a diameter of 18 feet. (Use Pi = 3.14).

254 square feet

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Find the grade of a pipe if the drop is 7 1/4” and the run is 58 feet.

1/8” per foot

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Convert:

7’ 5 1/8” to decimal feet.

7.43’

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Convert:

9 1/8” to decimal inches.

9.125”

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A faucet costs $675.00 at the supplier. The plumber will sell the faucet with a markup of 25%. What is the new price for the faucet?

$843.75

# Convert: 3.687” to fractional inches.

3 11/16"

# Convert: 10 cubic feet into gallons.

75 gallons

# Convert: 13.91’ to feet and fractional inches.

13' 11"

See figure below. Calculate the measurement for a special case 90 degree offset using 45 degree elbows for N if the spread between pipes is 12".

25 7/16"

See figure below. Calculate the measurement for a special case 90 degree offset using 45 degree elbows for O if the spread between pipes is 12".

19 1/16"

See figure below. Calculate the measurement for a special case 90 degree offset using 45 degree elbows for M if the spread between pipes is 12".

8 1/16"

# Convert: 41,472 cubic inches into cubic feet.

24 cubic feet

# Convert: 10 3/4” to decimal inches.

10.75"

Calculate the diagonal for a rolling offset made with two 45 degree fittings which has a rise of 5 inches and an offset of 4 inches.

9.05 inches

# Fill in the blank: Find the volume of a tub that is 32” wide, 72” long and 17” deep on inside dimensions \_\_\_\_\_\_.

39,168 cubic inches

# Convert: 20,736 cubic inches into cubic feet.

12 cubic feet

Find the grade of a pipe if the drop is 7" and the run is 56 feet.

1/8" per foot

# Convert: 270 gallons to cubic feet.

36 cubic feet

What is the pressure at the base of a water tower that is 115 feet tall?

49.9 psi

# Find the area: A room that is 14' in width and 18’ in length.

252 square feet

# Convert: 2 3/8” to decimal inches.

2.375"

# Convert: 5 5/16” to decimal inches.

5.312"

# Convert: 7 15/16” to decimal inches.

7.937"

# Convert: 4 13/16” to decimal inches.

4.812"

# Convert: 6.187” to fractional inches.

6 3/16"

# Convert: 9.625” to fractional inches.

9 5/8"

# Convert: 4.125” to fractional inches.

4 1/8"

# Convert: 8.875” to fractional inches

8 7/8"

# Convert: 12’ 9 1/4” to decimal feet.

12.77'

# Convert: 15' 11 3/4” to decimal feet.

15.98'

# Convert: 4' 6 1/2” to decimal feet.

4.54'

# Convert: 2’ 2 1/2” to decimal feet.

2.21'

# Convert: 16.71’ to feet and fractional inches.

16' 8 1/2"

# Convert: 6.75’ to feet and fractional inches

6' 9"

# Convert: 21.125’ to feet and fractional inches.

21' 1 1/2"

# Convert: 18.83' to feet and fractional inches.

18' 10"

# Find the area: A square that is 8” on each side.

64 square inches

# Find the area: A square that is 24' 3" on each side.

588 square feet

# Find the area: A room that is 8’ 6” in width and 16’ in length.

136 square feet

# Find the area: A room that is 24’ in width and 30’ in length.

720 square feet

# Find the area: A tank that has a diameter of 12 feet.

113 square feet

# Find the area: A tank that has a diameter of 20 inches.

314 square inches

# Find the volume: A tub that is 16” wide, 60” long and 16” deep on inside dimensions.

15,360 cubic inches

# Find the volume: A rectangular aquarium that is 12” wide, 48” long and 16” deep on inside dimensions.

9216 cubic inches

Calculate the volume of a cylindrical tank that has a diameter of 20” and a height of 48”. (Use Pi = 3.14)

15072 cubic inches

Calculate the volume of a cylindrical tank that has a diameter of 10' and a height of 6'. (Use Pi = 3.14)

471 cubic feet

# Convert: 6.68 cubic feet into gallons.

50 gallons

# Convert: 13.36 cubic feet into gallons.

100 gallons

# Convert: 90 gallons to cubic feet.

12 cubic feet

# Convert: 449 gallons to cubic feet.

60 cubic feet

# Convert: 50 gallons into weight measurement in pounds.

416 pounds

# Convert: 10 gallons into weight measurement in pounds.

83 pounds

# Convert: 5 gallons into weight measurement in pounds.

42 pounds

Find the grade of a pipe if the drop is 18 3/4" and the run is 75 feet.

1/4" per foot

Find the grade of a pipe if the drop is 12 1/2" and the run is 25 feet.

1/2" per foot

Find the grade of a pipe if the drop is 12 1/2" and the run is 200 feet.

1/16" per foot

Find the drop if the grade is 1/4" per foot and the run is 50 feet.

12 1/2"

Find the drop if the grade is 1/4" per foot and the run is 80 feet.

20”

Find the drop if the grade is 1/8" per foot and the run is 50 feet.

6 1/4"

Find the percentage grade if the drop is 12 1/2 inches and the run is 100 feet.

Find the percentage grade if the drop is 40 inches and the run is 160 feet.

Find the drop if the percentage grade is 1% and the run is 80 feet.

9 5/8"

Find the drop if the percentage grade is 2% and the run is 50 feet.

12”

Plumbing Math & Pressure Calculations Flashcards

Develop skills in plumbing calculations and pressure measurements. (83 cards)