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Что (кто) такое Ballast - определение
Найдено результатов: 44
ballast
n.
1) to take on ballast
2) to drop ballast
ballast
A heavy weight, usually sea water, necessary for the stability and safety of a ship at sea that is not carrying cargo.
ballast
Ballast is any substance that is used in ships or hot-air balloons to make them heavier and more stable. Ballast usually consists of water, sand, or iron.
N-UNCOUNT
ballast
['bal?st]
¦ noun
1. a heavy substance, such as gravel or lead, placed in the bilge of a ship to ensure its stability.
a substance carried in an airship or on a hot-air balloon to stabilize it.
2. gravel or coarse stone used to form the bed of a railway track or the substratum of a road.
a mixture of coarse and fine aggregate for making concrete.
3. a passive component used in an electric circuit to moderate changes in current.
¦ verb provide with ballast.
Origin
C16: prob. of Low Ger. or Scand. origin.
ballast
I. n.
1.
Weight (for steadiness), ballasting, filling, packing.
2.
Steadiness, consistency, stability, equipoise, balance, self-control, considerateness, foresight, prudence, discretion, judgment, sense, good sense, sound sense.
II. v. a.
1.
Put ballast into.
2.
Render firm or steadfast, etc. See the noun, under 2.
Ballast
·vt To keep steady; to steady, morally.
II. Ballast ·vt To steady, as a vessel, by putting heavy substances in the hold.
III. Ballast ·adj Any heavy matter put into the car of a balloon to give it steadiness.
IV. Ballast ·adj The larger solids, as broken stone or gravel, used in making concrete.
V. Ballast ·adj Gravel, broken stone, ·etc., laid in the bed of a railroad to make it firm and solid.
VI. Ballast ·adj Fig.: That which gives, or helps to maintain, uprightness, steadiness, and security.
VII. Ballast ·vt To fill in, as the bed of a railroad, with gravel, stone, ·etc., in order to make it firm and solid.
VIII. Ballast ·adj Any heavy substance, as stone, iron, ·etc., put into the hold to sink a vessel in the water to such a depth as to prevent capsizing.
Ballast
Ballast is material that is used to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability.
Electrical ballast
![impedance]] (AC resistance) to the circuit to counteract the negative resistance of the tube, limiting the current.<ref name="Sinclair" />](https://commons.wikimedia.org/wiki/Special:FilePath/Fluorescent light strip 2 tube.JPG?width=200 "impedance]] (AC resistance) to the circuit to counteract the negative resistance of the tube, limiting the current.<ref name=\"Sinclair\" />")
![40W T12 or 36W T8 fluorescent lamp]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Inductor for a fluorescent lamp PNr°0019.jpg?width=200 "40W T12 or 36W T8 fluorescent lamp]]s.")
USED TO STABILIZE THE CURRENT FLOW IN LAMPS
Lamp ballast; Ballast resistor; Dimming ballast; Ballast (electrical); Electrical ballasts; Electronic ballast; Electronic ballasts; Choke ballast; Choke ballasts; Ballast factor; Digital ballast; Magnetic ballast
An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit.
Water ballast
USED IN SAILBOATS TO PROVIDE MOMENT TO RESIST THE LATERAL FORCES ON THE SAIL
Ballast water; Ship ballast; Ballast (ship); Water ballast
·- Water confined in specially constructed compartments in a vessel's hold, to serve as ballast.
Sailing ballast
USED IN SAILBOATS TO PROVIDE MOMENT TO RESIST THE LATERAL FORCES ON THE SAIL
Ballast water; Ship ballast; Ballast (ship); Water ballast
Ballast is used in ships to provide moment to resist the lateral forces on the hull. Insufficiently ballasted boats tend to tip or heel excessively in high winds.
Википедия
Ballast
Ballast is material that is used to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability.
