There is a hot/cold cross connection at one or more of the faucets at you house. make sure all faucets are shut off both hot and cold. If it still occurs more than likely you have a Moen faucet somewhere (most likely).
Usually air in the lines or possibly worn washers in the faucets.
Obviously hooked up wrong, or the faucets are mismarked . Usually cold on the right, hot on the left.
Usually red. For example, if you want to use colors to label hot and cold faucets, the hot would be red and the cold would be blue.
Hot
If you are referring to a regular building, the cold water feed pipe goes directly to all cold faucets, toilets and hot water tank. The purpose seems obvious.
Probably not. Most bathroom faucets are 4 inch between the hot and cold and kitchen ones are 8 inch.
If you are referring to a regular building, the cold water feed pipe goes directly to all cold faucets, toilets and hot water tank. The purpose seems obvious.
Not always, but they should be. The convention in plumbing was to have cold on the right and hot on the left. This was only written into some US building codes (Southern Building Code) in the past 10 years.
It will not work better if it is hot or cold if it is clogged. Replace it.
Lots of stuf can cause it including sediment or a blocked supply line
Through magic hot water elves. That's how hot water does come home.