Final answer:
It is false that the selection of the LH or RH ENG FIRE PUSH switchlight determines which Firex bottle squib is fired; the fire suppression system's logic and design determine the deployment of the extinguishing agent.
Step-by-step explanation:
The statement is false. The selection of the LH or RH ENG FIRE PUSH switchlight does not determine which Firex bottle squib is fired. In aircraft systems, the logic for firing the extinguishing agent from a Firex bottle is often determined by the fire detection system and can involve automated decision-making based on certain criteria rather than direct pilot selection.
Typically, each engine or protected area will have its own dedicated fire suppression system, and the selection of either the left hand (LH) or right hand (RH) engine fire push switchlight would activate the corresponding system for the troubled engine. The systems are designed to ensure redundancy and safety. The actual firing of a specific bottle squib may be subject to the condition of the detected fire and the fire suppression system design, not merely the selection of a fire push switchlight.