Weights And Meassures Flashcards
1
Q
Metric/imperial unit conversions
A
1 L = .2642 U.S. Gallons or .219 imp Gals
1 U.S gallon = 3.785 L
1 imp gal = 4.546 L
2
Q
Water
A
1 ft3 = 62.4 lbs ( density of water) 1 ft3 = 6.24 lbs imperial gallons ( ig) 1 ft3 = 7.5 U.S gallons 1 imperial gallon= 10 lbs 1 U.S gallon = 8.33 lbs 1m 3 of water = 1000 kg (density of water) 1 m3 = 1000 L 1 L water = 1 kg
3
Q
BHP,BTU and EDR
A
1 BHP = 34.5 lbs of water to steam 1 EDR steam = 240 BTUs 1 BHP = 33475 BTUs 1 EDR water = 150 BTU Water: BTU = EDR x 150 BTU/hr Steam: BTU = EDR x 240 BTU/hr
4
Q
Atmospheric pressure
A
1 atmosphere = 14.7 PSIa = 101 KPa
Perfect vacuum = -14.7 PSIG
Gauge pressure = absolute pressure - atmospheric pressure
Absolute pressure = gauge + atmosphere
5
Q
Hydrostatic pressure
A
1m = 9.81 KPa 1'hd = .433 psi 1"hd = .0361 psi 1psi = 27.71"hd or 2.209' of water column
6
Q
Volume
A
1m3 = 1000 L = 35.287ft3
1ft3 = 28.34L = 0.028 34 m3
1 gal imp = 4.54 L
1 gal U.S = 3.77 L
7
Q
Mass
A
1 imp gal = 10 lbs
1 U.S gal = 8.33 lbs
1 m3 = 1000 kg
1 ft3 = 62.5 lbs