What is the purpose of the humidity indicator?

• A. To indicate battery health
• B. To detect moisture inside the launch tube
• C. To measure ambient humidity
• D. To monitor air pressure

Answer: (B)

The humidity indicator is there to reveal whether moisture has penetrated the launch tube. Inside the tube, any ingress of moisture can cause problems for the missile’s seals, electronics, or propellant, potentially leading to corrosion, arcing, or degraded performance. The indicator changes visually when humidity is present, giving a quick, reliable signal that the round is not in a dry, safe condition for handling or firing. This is why detecting internal moisture is the purpose of the indicator.

It isn’t about battery health, it doesn’t measure ambient outside humidity, and it isn’t a device for monitoring air pressure. The focus is specifically on the internal moisture level inside the launch tube to ensure readiness and safety.