Postcript on the "more fuel injected" - only when the engine is turning!
Traditional chokes basically block the airway a bit - hence the name. Merc / mariners used a thing they called an "enrichening valve" - i.e a tap to throw more fuel in.
As Jambo says, on one of these types using "choke" + open throttle (throttle controls the air flow) you might as well be cranking it without the "choke", as the throttle open allows more air in, thus cancelling the "enrichment".
FWIW mine when cold I crank for 2-3 seconds with "choke". It will fire, and if I can get the throttle open quick enough it will keep running. If not I have to follow it with an "open throttle crank" - a little antisocial in a marina, as it roars instantly to 3000+ RPM! As per Jambo - when hot just turn the key.
...and its not a daft Q - especially these days when every car has a computer to do all that stuff for you behind the scenes.