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  2. Glossary of firefighting equipment - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firefighting...

    Rotated the other direction, it will produce a jet of water; and at the end of rotation the water will be shut off. The shut off option can not be used for a long time as line is charged with pressure and it may burst the hose line. Landon hand control diffuser: This branch is fitted with a handle. Moving handle we get fog, spray, jet and shut off.

  3. Reverse overshot water wheel - Wikipedia

    en.wikipedia.org/wiki/Reverse_overshot_water_wheel

    It is a large wheel fitted with boxes, which in the first design, encompass the whole diameter of the wheel. Holes are bored in the boxes to allow water into them, so that as a box dips into the water, it enters and is raised as the wheel turns. When it reaches to the top of the turn, the water runs out into a channel.

  4. Curb box - Wikipedia

    en.wikipedia.org/wiki/Curb_box

    A curb box (also known as a valve box, buffalo box, b-box, or in British English stopcock chamber) is a vertical cast iron sleeve, accessible from the public way, housing the shut-off valve (curb cock or curb stop) for a property's water service line.

  5. Gate valve - Wikipedia

    en.wikipedia.org/wiki/Gate_valve

    Gate valves are used to shut off the flow of liquids rather than for flow regulation, which is frequently done with a globe valve. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. [1] The size of the open flow path generally varies in a nonlinear manner as the gate is moved.

  6. Mine dewatering - Wikipedia

    en.wikipedia.org/wiki/Mine_dewatering

    Mine dewatering is the action of removing groundwater from a mine. When a mine extends below the water table groundwater will, due to gravity, infiltrate the mine working. On some projects groundwater is a minor impediment that can be dealt with on an ad-hoc basis.

  7. Blowout preventer - Wikipedia

    en.wikipedia.org/wiki/Blowout_preventer

    Center and hang off the drill string in the wellbore; Shut in the well (e.g. seal the void, annulus, between drillpipe and casing); “Kill” the well (prevent the flow of formation fluid, influx, from the reservoir into the wellbore); Seal the wellhead (close off the wellbore); Sever the casing or drill pipe (in case of emergencies).

  8. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    A raw water collection point (above or below ground) where the water accumulates, such as a lake, a river, or groundwater from an underground aquifer. Raw water may be transferred using uncovered ground-level aqueducts, covered tunnels, or underground water pipes to water purification facilities. Water purification facilities.

  9. Tunnel construction - Wikipedia

    en.wikipedia.org/wiki/Tunnel_construction

    Tunnel Construction. Tunnels are dug in types of materials varying from soft clay to hard rock. The method of tunnel construction depends on such factors as the ground conditions, the ground water conditions, the length and diameter of the tunnel drive, the depth of the tunnel, the logistics of supporting the tunnel excavation, the final use and shape of the tunnel and appropriate risk management.

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