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What is working principle of washing machine?
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Answer Posted / naveenkumar r
Low foam detergents lower the surface tension of water and
allow the clothes to become wet. The hydrophobic part of the
detergent attaches itself to the dirt and the hydrophylic
part of the detergent attaches itself to the water.
A motor causes the drum to rotate in half revolutions,
causing the clothes to be tossed from side to side.
A thermostat heats the water to a temperature suitable for
the fabric and the degree of soiling, i.e., 40°C for normal
washing and 90°C for heavy soiled cotton.
The soiled water is drained out of the machine through the
perforated drum and empties into the waste pipe. The drum is
filled again with cold water and the clothes are rinsed
(usually two or three rinses). The machine is emptied and
begins to revolve at high speed, exerting centrifugal force
on the contents (the clothes are forced against the
perforated drum and water is squeezed out of them).
| Is This Answer Correct ? | 49 Yes | 16 No |
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