Assume a firearm is loaded until you have personally checked it. After checking it, leave the action open. Keep your finger out of the trigger guard until ready to fire. Do not point a firearm at anything you do not mean to destroy. If you are a youngster, I would add to that do not touch or handle a firearm except when with a responsible adult.
It is when you fire the rifle or shotgun, but the projectile fails to leave the barrel of the firearm.
Yes
No
The Chinese fire stick
A semi-automatic firearm will only fire one round per trigger pull, then the trigger must be released and pulled again to fire the next round. A fully automatic firearm will fire as many rounds as it has available as long as the trigger is pulled.
yes, it will load and fire. unfortunately the shorter cartridge will cause the projectile to discharge without perfect alignment with the the barrel, thus the cylinder will absorb the recoil and ultimately destroy your firearm.
In general, no. A flare gun, properly called a flare projector, is capable of launching only a light weight, low velocity projectile, and is not suitable for use as a weapon. If an attempt were to be made to fire a standard firearm cartridge from a flare projector, it will likely destroy the projector, with a strong possibility of injury to the shooter.
When you do not intend to fire the weapon.
No
No
A regular pistol is a firearm. It uses gunpowder to fire a bullet. An air pistol uses compressed air to fire a pellet with less velocity than a firearm.