Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
Pressure |
Force exerted over a unit of area p=f/a , p=ht x d |
|
|
Force |
Push or pull or weight not restricted to a certain area. Calculated over the entire area F= p x a |
|
|
Pascal |
Metric unit of pressure. Pressure produced when a force of one Newton is exerted over an area of one square meter |
|
|
Newton |
Metric unit that measures force. Amount of force required to accelerate 1kg at 1M/sec2 F=Mass (kg) x 9.81 |
|
|
Hydrostatics |
Study of fluids at rest and of the forces and pressures contained within the fluid |
|
|
Fluid pressure is exerted in ______ direction |
All directions |
|
|
Fluid pressure is proportional to _____ and _____ |
Depth and density |
|
|
Fluid pressure is proportional to _____ and _____ |
Depth and density |
|
|
_____, _____ and _____ do not affect fluid pressure |
Shape of container, horizontal runs, volume |
|
|
Fluid pressure is proportional to _____ and _____ |
Depth and density |
|
|
_____, _____ and _____ do not affect fluid pressure |
Shape of container, horizontal runs, volume |
|
|
1 foot=____psi |
0.433 Lbs/In2, psi |
|
|
1m=____ kPa |
9.81kPA |
|
|
1 in= ___psi |
0.0361 psi |
|
|
1 in= ____ oz/in2 |
0.578 oz/in2 |
|
|
1 in Hg= ___ psi |
0.491 psi |
|
|
1 in Hg= ___ psi |
0.491 psi |
|
|
1 psi = ___in WC |
27.64 in |
|
|
N=____kPA |
1N =1000xkPa |
|
|
Standard conditions in metric and imperial |
Imperial: 60F, 29.92"Hg, air has a density of 0.076 lbs/ft3 Metric: 0C, 101kPA, air has a density of 1.29kg/m3 |
|
|
Atmospheric pressure is exerted in ___ directions |
All directions |
|
|
Atmospheric pressure at sea level |
29.92" or 760mm Hg 14.7psia or 101kPa |
|
|
Absolute pressure |
Includes atmospheric pressure =psig+1 atmosphere(14.7psi or 101kPa) |
|
|
Gauge pressure |
Does not include atmospheric pressure. |
|
|
Vacume/negative pressure |
Pressures below standard atmospheric pressure. Perfect vacume is 0psia. Max theoretical depth in perfect vacume 10.34m (33'11") Max practical depth 7m (23'-26') |
|
|
1psi=____kPa |
kPa= 6.9xpsi |
|
|
760mm/101kPa= |
?mm/?kPa |
|
|
Air pressure decreases: 1"Hg for every ___' above sea level 1 psi for every ___' above sea level 1 kPa for every ___m above sea level |
Hg:1000', psi:2000', kPa:90m |
