No!
Water doesn't combust.
If you use Petrol or Gasoline in a Diesel engine you will destroy that engine. That is why you do not use it.
Yes, you can use a fuel injector in a petrol engine.
Petrol in a diesel engine will destroy the engine.
no
No. A petrol or gasoline engine will not run on diesel fuel.
if it is a petrol engine then no
Many use standard petrol, some use high octane petrol.
the engine will not run because of three reasons. 1. Diesel uses more compression than the petrol engine does 2. the diesel engines fuel to air mixture is 1:1 and petrol isn't 3. diesel engines use straight compression or glow plugs instead of spark plugs
Turbochargers are used on some petrol or gasoline engines.
Many petrol cars have fuel injectors.