Flashcards in Pressure & Atmosphere Deck (13)

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1

## Formula for Force

### F=Pressure x Area

2

## Pressure and force units

###
Psi-lb/in2

Psf-lb/ft2

oz/in2,

Pa,

kPa

3

## Six principles of hydrostatic

###
-Fluid pressure exerted in all direction

-shape of the container does not affect Floyd pressure

-fluid pressure is proportional to depth

-fluid pressure is proportional to density

-horizontal runs do not increase pressure

-volume of fluid does not affect pressure

4

## Water one meter high exerts a pressure of

### 9.81 kPa

5

## Mercury one meter high exerts a pressure of

###
133.416 kPa

9.81 kPa (weight of 1m of H2O) x 13.6 (RD of mercury)

6

## Two factors that affect pressure

### Height and density of the fluid

7

## What factor doesn't affect pressure

### Volume of fluid

8

##
One cubic foot of water column exerts a force of 62.4 lb. divided by pressure of 144 in2 (inches in a foot) equals

###
0.433 psi lb/in2

Height in feet

9

## One in2 column of water weighs 0.0361 lb. How much does a 12" water column exert for pressure

### 0.433 psi

10

##
one sq. in. weighs 0.0361 lb. times 16oz/lb equals

###
0.578 oz/in2

Height in inches

11

##
INCHES OF MERCURY

RD of mercury is 13.6 times 0.0361 psi equals

###
0.491 lb/in2

Mercury

12

##
1 sq meter base 1 meter high water column of water has the pressure of

###
9.81 kPa

Kilopascals

13