Question

During an engine's intake stage, what passages inside the cylinder head of a gasoline powered engine must the incoming air-and-fuel mixture flow through in order to enter the cylinder?

A. Intake ports
B. Valve guide
C. Exhaust manifold
D. Cylinder bore

Answer 1

A. Intake Ports
Have a good one!

Answer 2

The answer is the intake ports/valves.

Engine valves consist of two types of valves; intake and exhaust valves. An intake valve is placed on a cylinder head of an internal combustion engine. It is built to allow or let in the proper amount of air-fuel mixture to enter inside the cylinder when the complete cycle movement of piston from TDC to BDC and then back to TDC takes place.