For a clustered model using multiple igniters, which indication is typically required of igniter continuity?

For a clustered model using multiple igniters, which indication is typically required of igniter continuity?

• A. The launch control must provide audible indication of igniter continuity
• B. The launch control must provide visual indication of igniter continuity
• C. The launch control must provide both audible and visual indications of igniter continuity
• D. The launch control must provide a backup power source for igniters

Answer: (C)

Continuity testing in a clustered motor is about confirming the ignition circuit is complete so every igniter in the cluster will receive current. When you have several igniters, relying on a single cue can lead to missed faults in less-than-ideal conditions. Providing both audible and visual indications ensures you can verify continuity in a variety of environments: the beep confirms the circuit is closed even if you can’t easily see the panel, and the light gives a clear, independent check at a glance. Using both forms of indication increases reliability and safety by reducing the chances of missing a fault before launch. A backup power source for igniters is a separate concern and does not indicate whether the igniters will actually fire; continuity indication is about the circuit being complete.

Continuity testing in a clustered motor is about confirming the ignition circuit is complete so every igniter in the cluster will receive current. When you have several igniters, relying on a single cue can lead to missed faults in less-than-ideal conditions. Providing both audible and visual indications ensures you can verify continuity in a variety of environments: the beep confirms the circuit is closed even if you can’t easily see the panel, and the light gives a clear, independent check at a glance. Using both forms of indication increases reliability and safety by reducing the chances of missing a fault before launch. A backup power source for igniters is a separate concern and does not indicate whether the igniters will actually fire; continuity indication is about the circuit being complete.