Question

Multi Point Fuel Injection uses several injectors, normally respective to number of engine cylinders and placed at the ............... of each cylinder.

• A. induction manifold
• B. carburettor
• C. inlet port
• D. outlet port

Hint:

Tip: MPFI → precise fuel at inlet port → better combustion!

Answer 1

The Correct Option is C

Multi Point Fuel Injection (MPFI) is a modern fuel supply system used in petrol engines.
In MPFI, each cylinder has its own dedicated fuel injector.
These injectors are installed near the inlet port of each cylinder.
When fuel is injected directly at the inlet port, it mixes efficiently with the incoming air, forming a uniform air-fuel mixture.
This results in better combustion, improved power output, fuel efficiency, and reduced emissions.
Unlike a carburettor, which mixes fuel with air in the intake manifold, MPFI delivers fuel precisely at each cylinder’s inlet.
The outlet port is the exhaust side, not the intake.
Therefore, the correct answer is inlet port.