Piston Engines | Carburetors

Outline the purpose of the carburation system

To control the air and fuel ratio in response to the throttle setting

The ____ carburetor system is very prone to carburetor icing, and may also be affected by ____

float, flight manoeuvres

A more sophisticated alternative the to float carburetor is a ___

fuel injection system

Within the induction manifold, when the throttle is opened, the pressure will ____

rise

As engine speed increases, the proportion of fuel to air ___ as a result of the flow characteristics

rises

With increasing altitude, the weight of the air drawn into the cylinder ___ as the density ___

decreases decreases

The pressure drop in the venturi will ___ as the ambient density decrease, however the amount of fuel will not decrease by the same proportion

decrease

When using power settings above the cruise range, a ____ is required to prevent detonation

richer