If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the __________.

Correct Answer: Option A — control air system

A control air system is a dedicated subsystem designed to provide clean, dry, and regulated air to pneumatic combustion controls, valve actuators, and instrumentation. Because these components are sensitive to contamination, this system is typically separate from the ship's general service air system to ensure reliability and precise control performance.