When the system is armed, the hydrazine is released whenever the engine-driven generators go off-line, or if all engine-driven hydraulic pumps fail.

When the brake pedal of a modern vehicle with hydraulic brakes is pushed, ultimately a piston pushes the brake pad against the brake disc which slows the wheel down.

When hydraulic fluid flow is stopped, the slightest motion of the load releases the pressure on the load ; there is no need to " bleed off " pressurized air to release the pressure on the load.

When King Louis XIV of France wanted to instruct his six-year-old son, he incorporated the series of hydraulic statues representing 38 chosen fables in the labyrinth of Versailles in the 1670s.

When completed and in service, the first 940 ran reliably in spite of its array of tricky mechanical issues such as a huge disk drive driven by hydraulic arms.

When all of the blocks in the arch ( there are four parallel arches altogether, not seen in the picture ) were in place, the gaskets were ' inflated ' using synthetic hydraulic fluid, expanding the entire arch and lifting it away from the formwork to support its own weight.

When they arrive, he sets the hydraulic press and motions for Helene to push the button.

When dock machinery required hydraulic power, the hydrostatic head of the water's height above ground provided the necessary pressure.

When there is a difference between the left and right wheels ' speed, the pump pressurizes the hydraulic fluid causing the clutch to compress.

When the hydraulic cylinder is extended, the fork clamps downward toward the bucket, much like a closing hand.

When the bale has moved fully onto the pan, the pan suddenly pops up, pushed by a large hydraulic cylinder, and tosses the bale up into the wagon like a catapult.

When the Falcon received a hydraulic clutch system, so too did the Jeep.

When the train is in position, the hydraulic launch mechanism accelerates the train from 0 to 128 miles per hour ( 0 to 206 km / h ) in 3. 5 seconds, pulling about 1. 67 Gs.

When the hydraulic pressure holding the bell down was released the bell would shoot back up to the surface in dramatic fashion.

When the gigantic C-5A entered service, the loadmaster field became more technical as loadmasters became responsible for operating complex systems to operate the hydraulic systems that operated the forward and aft cargo doors and to kneel the airplane for loading and unloading.

When the dam was completed in 1913, it was the largest hydraulic engineering project west of the Mississippi River and the fourth-largest dam in the US.

When the fuel injectors are electrically activated, a hydraulic valve ( consisting of a nozzle and plunger ) is mechanically or hydraulically opened and fuel is sprayed into the cylinders at the desired pressure.

When the dies are closed, the tube ends are sealed by axial punches and the tube is filled with hydraulic fluid.

When the water table is shallow, the augerhole method, a slug test, can be used for determining the hydraulic conductivity below the water table.

When the horizontal and vertical hydraulic conductivity ( Kh < sub > i </ sub > and Kv < sub > i </ sub >) of the soil layer differ considerably, the layer is said to be anisotropic with respect to hydraulic conductivity.

When the apparent horizontal and vertical hydraulic conductivity ( Kh < sub > A </ sub > and Kv < sub > A </ sub >) differ considerably, the aquifer is said to be anisotropic with respect to hydraulic conductivity.

When Hammerhead instigates a fight a summit held between Silvermane, Tombstone, and Doctor Octopus by drugging Silver Sable, Silvermane uses a hidden hydraulic exoskeleton, which provides him with superstrength and energy blasts, to fight with.

When paper electrophoresis was to be used for preparation, eight strips of a whole serum sample or a chromatographic fraction concentrated by negative pressure dialysis were run/chamber under the conditions described above.

When Kitti was alive -- and he remembered the pressure of her hand resting lightly on his arm -- she had been the center of his life.

When a parcel of air descends, the pressure on the parcel increases.

When the pressure applied on a parcel of air decreases, the air in the parcel is allowed to expand ; as the volume increases, the temperature falls and internal energy decreases.

When heat and pressure are applied to the layers, a chemical reaction ( polymerization ) transforms the layers into a high-pressure thermosetting industrial laminated plastic.

When the heat release oscillations are in phase with the pressure oscillations, the Rayleigh Index is positive and the magnitude of the thermo acoustic instability is maximised.

When the partial pressure of is reduced, for example when a can of soda is opened, the equilibrium for each of the forms of carbonate ( carbonate, bicarbonate, carbon dioxide, and carbonic acid ) shifts until the concentration of in the solution is equal to the solubility of CO < sub > 2 </ sub > at that temperature and pressure.

When a manipulation is performed, the applied force separates the articular surfaces of a fully encapsulated synovial joint, which in turn creates a reduction in pressure within the joint cavity.

When lying down, the cerebrospinal fluid as estimated by lumbar puncture is similar to the intracranial pressure.

When a multi-component liquid is heated, the vapor pressure of each component will rise, thus causing the total vapor pressure to rise.

When the total vapor pressure reaches the pressure surrounding the liquid, boiling occurs and liquid turns to gas throughout the bulk of the liquid.

When a binary mixture is evaporated and the other component, e. g. a salt, has zero partial pressure for practical purposes, the process is simpler and is called evaporation in engineering.

When Danny did return to New York, his father did not pressure him to return to school or to get a job, giving his son the chance to mature and discover his own abilities.

When the transformation occurs at constant pressure:

When a system, for example, n moles of a gas of volume V at pressure p and temperature T, is created or brought to its present state from absolute zero, energy must be supplied equal to its internal energy U plus pV, where pV is the work done in pushing against the ambient ( atmospheric ) pressure.

When the process of escape and return reaches an equilibrium, the vapor is said to be " saturated ," and no further change in either vapor pressure and density or liquid temperature will occur.

When a cartridge is fired, the internal pressure expands the case to fit the chamber in a process called obturation.

When the hats are closed, the pressure holding them together can be varied by varying the foot pressure.

When the Australian television programme 60 Minutes challenged her to demonstrate how she could live without food and water, the supervising medical professional Dr. Beres Wenck found that after 48 hours Jasmuheen displayed symptoms of acute dehydration, stress and high blood pressure.

When colonial rule was established and efficiency was sought, partly because of settler pressure, newly educated younger men were associated with old chiefs in local Native Councils.