When air supply source is mechanically controlled, it should be

When air supply source is mechanically controlled, it should be

• A. Interlocked with fuel supply
• B. Independent of fuel supply
• C. In parallel with the fuel line
• D. Operated separately from the fuel system

Answer: (A)

Interlocking air and fuel supplies is a safety requirement. The system is designed so that fuel can only be released if the air supply is present and flowing. This ensures proper combustion and prevents dangerous conditions like unburned fuel buildup, smoke, or explosions when air is unavailable or disrupted. With a mechanical interlock, a fault or interruption in the air path automatically prevents fuel from being delivered, providing a reliable fail-safe. Why this option fits best: tying the fuel supply to the air control guarantees that no fuel flows if there’s no air flow, or if the air path is compromised. It enforces correct sequencing and prevents unsafe operation that could occur if fuel could be supplied independently of the air system. Why the other ideas don’t fit: making the air source independent of fuel means fuel could be released without sufficient air, creating hazardous conditions. Having the air system in parallel with the fuel line might still allow unsafe conditions if one path operates without the other. Operating the air and fuel systems separately removes the automatic safety link that prevents fuel flow when air isn’t available.

Interlocking air and fuel supplies is a safety requirement. The system is designed so that fuel can only be released if the air supply is present and flowing. This ensures proper combustion and prevents dangerous conditions like unburned fuel buildup, smoke, or explosions when air is unavailable or disrupted. With a mechanical interlock, a fault or interruption in the air path automatically prevents fuel from being delivered, providing a reliable fail-safe.

Why this option fits best: tying the fuel supply to the air control guarantees that no fuel flows if there’s no air flow, or if the air path is compromised. It enforces correct sequencing and prevents unsafe operation that could occur if fuel could be supplied independently of the air system.

Why the other ideas don’t fit: making the air source independent of fuel means fuel could be released without sufficient air, creating hazardous conditions. Having the air system in parallel with the fuel line might still allow unsafe conditions if one path operates without the other. Operating the air and fuel systems separately removes the automatic safety link that prevents fuel flow when air isn’t available.