Question

1- On an engine equipped with a pressure-type carburetor, fuel supply in the idling range

is ensured by the inclusion in the carburetor of
*A- a spring in the unmetered fuel chamber to supplement the action of normal metering
forces.
B- an idle metering jet that bypasses the carburetor in the idle range.
C- a separate boost venturi that is sensitive to the reduced airflow at start and idle
speeds.

Answer 1

A- a spring in the unmetered fuel chamber to supplement the action of normal metering forces. On an engine equipped with a pressure-type carburetor, fuel supply in the idling range is ensured by a spring in the unmetered fuel chamber.

Step-by-step explanation:

On an engine equipped with a pressure-type carburetor, fuel supply in the idling range is ensured by the inclusion of a spring in the unmetered fuel chamber to supplement the action of normal metering forces.