17. A centimeter is _____ larger than a
millimeter.
18. Convert following U.S. customary meas-
urements to metric:
A. 18 inches = _____ meter
B. 4 feet = _____ meter
C. 10 inches = _____ cm
D. 453 cubic inches = _____ liters
E. 2.5 cubic feet = _____ liters
F. 346 cubic feet = _____ cubic meters
19. Convert the following temperatures from
degrees Celsius to degrees Fahrenheit.
A. 85°C = _____ °F
B. 5°C = _____ °F
C. –10°C = _____ °F
D. 46°C = _____ °F
20. Convert the following temperatures from
degrees Fahrenheit to degrees Celsius.
A. 105°F = _____ °C
B. 46°F = _____ °C
C. –24°F = _____ °C
D. 12°F = _____ °C
Suggested Activities
1. Practice measuring the length of various
pieces of pipe using both the U.S. cus-
tomary and the metric scale.
2. Calculate the actual length of pipe required
for a variety of typical installations. Include
fitting allowances.
3. Compute the volume of a standard tank
for water heating or other plumbing
installations.
Chapter 4 Mathematics for Plumbers
101