Choke chains are a collar and lead made for a dog which is designed so that if the dog drags on the lead the collar will tighten around its neck. Individuals usually wear it because they think it's a fashion statement.
You shouldn't use a choke chain. They cause damage to a dog's neck and trachea. A leash/collar combination called a "gentle leader" is a better choice.
We would use a modified or full choke, and #4 shot.
The same as you would a chicken.
The choke you use depends on your target rather than the type of shotgun. For example: if you are shooting skeet, you would use improved or modified cylinder, but if you are shooting trap, you would use full choke.
You would use a full,or extra full choke if using 00buck for hunting purposes.If for self protection thats up to you.
Yes
A full or extra full choke will hold shot in a tighter pattern
Older vehicles with a carburetor have a choke to aid in cold starts. The choke would be part of the carburetor. If it was to be stuck on the engine would flood and not start. Newer vehicles (mid 80's and up) are fuel injected and do not use the "choke" as such. It is done electronicly.
You can use steel shot with a choke anywhere from cylinder to modified, i wouldn't recommend using steel with a improved modified or a full choke.
Yes- that is what the poly-choke is for.
They usually use a modified (medium) choke on the 870, unless it has choke tubes.
If the car has fuel injection you cannot use a choke. however if the car has a carburetor without a automatic choke that is when add a manual choke cable to the carburetor choke flap. When you pull the choke flap closed it limits the air flow to the engine allowing for the engine to warm up so so it can atomize the fuel for the engine to run more efficiently. This is important in cold weather you almost always have to use a choke to start the engine.