The flow rate is critically sensitive to the fuel pressure at the jet, i . e . the hydrostatic head owing to the depth of fuel between the jet and the float level.
12.
Water supply talks about a typical residential pressure of 4-5 bar ( 60-70 psi ), which corresponds to 40 or 50 meters ( 150 feet ) of hydrostatic head.
13.
One specific definition of " waterproof / breathable " requires the fabric to withstand over 1, 000 millimetres of water ( 9.8 kPa ) pressure without leaking ( see hydrostatic head ).
14.
Unlike a conventional waterproof fabric, Analogy would fail a hydrostatic head test ( if used to seal the bottom of a tube containing water, only a very short column could be supported ).
15.
The components of the facility have to exclude the conduit, the associated transmission lines, cannot be an integral part of a dam , cannot use a dam to supply its hydrostatic head, and cannot be located on Federal lands.
16.
This does not necessarily result in a kick ( and may never become one ); however, a drop in the mud level might allow influx of formation fluids from other zones if the hydrostatic head at is reduced to less than that of a full column of mud.
17.
With this change, three properties worsened : " Water absorption " changed from 10 % to 15 %, " Resistance to water hydrostatic head " changed from 750mm to 600mm and " Oil repellency " changed from 5-6 to 0.
18.
A leat, called a " main ", " carrier " or " top carrier ", was used to divert water from the river and carry it down the valley at a gentler slope than the river, producing a hydrostatic head between the two.
19.
Upon encountering a zone of higher pressure than is being exerted by the hydrostatic head of the drilling mud ( including the small additional frictional head while circulating ) at the bit, an increase in mud return rate would be noticed as the formation fluid influx blends in with the circulating drilling mud.
20.
A leak occurring within a floor void would therefore go unnoticed until the hydrostatic head of pressure meant that the water found its way through to floors below where its dripping through the ceiling would be noted or, and more disconcerting, the water would penetrate the joints and connectors of the power or network cabling and cause system failure from short circuit.
