The air intake system conveys fresh air through pipes or ducts to:
1. Air-intake manifold of four-stroke engine.
2. The scavenging pump inlet of a two-stroke engine.
3. The supercharger inlet of a supercharged engine.
The air intake may be located:
(a) Very Near the ground and outside the plant building.
(b) In the building roof.
(c) On the building roof.
(d) Inside the engine room.