What is the primary purpose of the pneumatic component shown in the illustration? Illustration MO-0119

Correct Answer: Option D — If the throttle is manually moved from its 'zero' position, the resulting effect will tend to override the output of the governor, and secure the air to the control circuit.

Manual movement of the throttle from the zero position overrides governor output pressure and secures pneumatic control circuit air to guarantee immediate local emergency shutdown capabilities.