Final answer:
The venturi is the carburetor component that measures the amount of air delivered to the engine.
Step-by-step explanation:
The carburetor component that measures the amount of air delivered to the engine is called the venturi.
It is a narrow passage in the carburetor that increases the velocity of the air flowing through it. As the air speed increases, it creates a low-pressure area in the venturi, drawing fuel up from the fuel bowl through the main jet. The amount of air passing through the venturi determines the amount of fuel that is mixed with it, resulting in the optimal air-fuel ratio for combustion in the engine.