MGO substitutes must be burned in how many weeks?

• A. 4 weeks
• B. 6 weeks
• C. 8 weeks
• D. 12 weeks

Answer: (B)

The key idea here is disposal timing. MGO substitutes are chemical blends used in training that can change quality or become less stable if kept too long. Burning them within a set window manages safety risks, keeps storage practical, and aligns with waste-disposal rules.

Six weeks is the chosen interval because it balances safety and practicality: it prevents degradation, sediment, or formation of unstable byproducts in storage, while not forcing overly frequent disposal that would waste time and resources. If you try to push the timeline shorter, you create unnecessary handling and disposal work. If you extend it longer, the substitutes may deteriorate or react in storage, making disposal more hazardous or less predictable and increasing regulatory concerns.

So, burning them within six weeks keeps the process safe, predictable, and manageable.