yes
No because one must have sour with sweet
The same as any other cherry tree. A pit.
early spring
mid spring or after you pick the cherries
The spacing for dwarf bing cherry tree is 10-20 feet. Also most sweet cherry (Bing) are not self pollinating they need a different cherry tree like black tratarian, van, republican, Stella nearby.
This tree can be pruned from mid-summer to fall, but before the first hard-freeze for your area.
Of course you can. Assuming you have the proper tools, you can (i.e., it is physically possible to) trim any tree at any time. The question you should be asking is, "Will it harm my bing cherry tree if I trim it while it's in fruit?".
It needs another tree.
Prune it after leaf fall. It depends why you want to prune it. Trees dont usually need pruned as it spoils their natural shape. If it has become too large for its space then cut it back but remember pruning causes more growth.
Whict month of the year graft a cherry tree?
The Black Tartarian cherry tree needs to be pollinated by another cherry variety (Bing or another sweet cherry variety will do) in order to properly develop its fruit. Although the fruit can not develop without the tree having flowered first, flowering alone does not guarantee that the tree will set fruit.