Formulas And Euivalents Troise. Flashcards
1
Q
- Atmospheric pressure in feet of water head?
A
33.9 feet.
2
Q
- Atmospheric pressure in inches of mercury?
A
29.9”.
3
Q
- Weight of 1 cubic inch of water?
A
.0361 lbs.
4
Q
- Weight of 1 cubic inch of mercury?
A
.49 lbs.
5
Q
- What is specific gravity of mercury?
A
13.6 .
6
Q
- Weight of 1 cubic foot of water?
A
62.4 pounds.
7
Q
- Weight of 1 U.S. gallon of water?
A
8.33 pounds.
8
Q
- How many gallons has1 cubic foot of water?
A
7.48 gallons.
9
Q
- How many cubic inches has 1 U.S. gallon of water?
A
231 cu. in.
10
Q
- What is the pressure at the bottom of a column of one foot of water?
A
.434 lb. per sq. in.
11
Q
- What is the pressure in feet of pressure head at the bottom of a column of water that exert pressure 1 lb. per sq. in?
A
2.31 foot or 27.7 inches.
12
Q
- How can you find pressure if you know Head ?
A
Pressure = Height (Head) x .434 for each foot high.
13
Q
- How can you find head of pressure that water will rise if you water pressure?
A
Head in feet = pressure x 2.31
14
Q
- Temperature of freezing of fresh water?
A
32* F.
15
Q
- Temperature of freezing of salt water?
A
27*F.