It sure is possible. The defense attorney will have to turn over to the prosecutor the list of names he plans to call as witnesses. Any state's attorney worth his job will probably run the names through the criminal information computer in order to learn something about the background of the witnesses he is going to have to contend with. If you're a felony absconder, it's quite likely you'll be in there.
Kind of unlikely. If/When they run your name into the sytem to check on you, the warrant will probably show up, and you'll be arrested.
A warrant is an order for an arrest issued by the court. But many arrests do not need a warrant. If you punch someone in the face, and police are called, you will be arrested without a warrant, and one will not be needed. If say, you failed to show up in court, then a warrant for your arrest will be issued, to alert all officers that you should be arrested on sight. So the warrant itself is not the thing 'allowing' you to be arrested.
Unless the arrest warrant specifically states that the issuing agency will extradite then you can not be arrested for it.
You don't have a legal obligation to turn someone in, even if you know they have a warrant for their arrest. However, if you allow that person to live with you and purposely hide them from the police, you can be arrested for harboring a fugitive.
yes, a warrant is a warrant.
No, they arresting officers do not have to have the warrant in their possession, only the knowledge that it exists.
A warrant is a judicial order for an arrest. If the warrant was still valid, the law enforcement officer has no choice but to make an arrest.
Yes.
Then you could be extradited to the county that issued the warrant.
Someone knew the crime happened and reported it to the police otherwise there could be no arrest warrant issued.
No
Yes.