Question

The injection of fuel into a SI engine can be done by ___________

(a) direct injection of fuel into the cylinder

(b) injection of fuel close to the inlet valve

(c) injection of fuel into the inlet manifold

(d) all of the mentioned

The question was asked in an interview for internship.

This is a very interesting question from Fuel Injection In S.I. Engine topic in section Mechanical Injection Systems of IC Engine

Answer 1

Right answer is (d) all of the mentioned

For explanation: The injection of fuel into a SI engine can be done by

i) direct injection of fuel into the cylinder

ii) injection of fuel close to the inlet valve

iii) injection of fuel into the inlet manifold.