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Does water flow from hot to cold?
No, cold water is piped into the hot water tank and is heated by electricity or gas, it then flows out to the hot water taps.
Will a mixer work if only the cold side is live?
No. A mixer mixes both flows, so if you have only one flow it can't mix.
What refers to the tendency of oil to resist flowing?
Oil viscosity depends on it's temperature. The higher the oil temperature is, leads to higher viscosity and low flow resistance. Cold oil temperature leads to lower viscosity and higher flow resistance
Why windows in cold countries have double doors?
Air in between the two doors forms a non-conducting layer & does not allow heat from inside to flow outside.
Does aluminum conduct cold faster than glass?
Aluminum is a conductor and glass is an insulator. Conductors allow the flow of energy transfer, but insulators block this transfer of energy. So by definition, Yes, aluminum conducts cold or heat(energy) transfer faster than glass.
