For a rocket with bursting smoke and BD, which item is listed as a safety?

• A. jet
• B. wp
• C. fire
• D. chem

Answer: (B)

This question tests recognizing which material is treated as a safety item in a rocket that uses bursting smoke and a bursting device. White Phosphorus (WP) is designated as the safety item because it is a highly hazardous material with ignition and contamination risks, requiring strict handling, containment, and protective measures. Its properties demand specific safety procedures, so it’s the item flagged as a safety concern in this context.

The other terms describe effects or hazards rather than a specific safety designation in this scenario: a jet is the propulsion or expulsion stream, fire is a general hazard, and chem refers to chemical hazards or components. None of these are treated as the formal safety item in this listing, which is why the correct choice is White Phosphorus.