It won't.
Yes it be done by laser
If the engine has spark plug it is said to be petrol engine, and if it has a pump to inject fuel then it is diesel engine.
No!
unless its a diesel, yes
Diesel engines have a far higher compression which allows the diesel fuel to explode without the use of a spark plug.
Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.
A petrol engine is called a spark ignition engine because it uses a spark plug to ignite the air-fuel mixture in the combustion chamber. When the engine's piston compresses the mixture, the spark plug generates a spark that ignites it, causing an explosion that drives the piston down. This ignition method distinguishes it from diesel engines, which rely on compression ignition. The term reflects the fundamental mechanism by which combustion occurs in petrol engines.
it could be for the spark plug, petrol engines dont need glow plugs, diesel engines do
A spark ignition engine, like your average gasoline/petrol burning car engine.
the spark plug provides the spark necessary to ignite the fuel and air in the engine, which allows your engine to run. without spark plugs, your engine wouldn't start.
spark ignition engine is also known as petrol engine. but in diesel engines the fuel is burnt due to the high compression of air.so there is no need of spark plug
not possible becase it has low calorific value.only spark plug can cann