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17 Cards in this Set
- Front
- Back
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Quarter of pi |
0.7854 |
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Entropy |
Total heat loss |
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Enthalpy |
Total heat |
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Amount of BTU required to change a substance, also known as latent heat |
970.3 |
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Boiler horsepower |
34.5 lbs. per hour of evaporation from and at 212 degrees Fahrenheit |
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Cubic inches in a gallon of water |
231 cubic inches per gallon of water 231 cubic in. / 1 gallon water |
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Weight of water per gallon |
8.33 pounds per gallon of water 8.33 pounds / 1 gallon of water |
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Pressure exerted on one foot of water, usually in psi |
0.433 psi per foot of water 0.433 psi / 1 ft. of water |
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Weight of one cubic foot of water |
62.5 or 62.3 pounds per cubic foot of water. 62.3 pounds / 1 cubic foot of water |
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Cubic foot of water to gallons |
7.48 gallons of water per cubic foot of water 7.48 gallons of water / 1 cubic foot of water |
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Psi |
Pounds per square inch |
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Psig |
Pounds per square inch gauge pressure |
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Psia |
Pounds per square inch in absolute pressure |
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Absolute pressure |
Gauge pressure plus atmospheric pressure |
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Pressure in psi at atmospheric level |
14.7 psi |
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Celsius to Fahrenheit |
C x 1.8 + 32 = F |
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Fahrenheit to Celsius |
(F - 32)/1.8 = C |
