The altitude range for the MK-79 signal is 250 ft to 650 ft.

The altitude range for the MK-79 signal is 250 ft to 650 ft.

• A. 100-300
• B. 250-650
• C. 400-900
• D. 50-200

Answer: (B)

Understanding this question hinges on knowing the published altitude range for the MK-79 signaling flare. The MK-79 is a parachute illumination flare used at sea, and its performance spec specifies it should reach an altitude between 250 and 650 feet. This range is chosen to maximize visibility over the water and horizon while keeping the flare within a safe, effective height for observers to spot. If the flare rises too low, spray or waves can obscure it; if it climbs too high, it may be harder to locate and may drift out of optimal viewing range. Therefore, the 250–650 feet range matches the device’s design and training guidelines, making it the correct choice. The other ranges would fall outside the specified operating envelope and would not provide the intended visibility or safety characteristics.

Understanding this question hinges on knowing the published altitude range for the MK-79 signaling flare. The MK-79 is a parachute illumination flare used at sea, and its performance spec specifies it should reach an altitude between 250 and 650 feet. This range is chosen to maximize visibility over the water and horizon while keeping the flare within a safe, effective height for observers to spot. If the flare rises too low, spray or waves can obscure it; if it climbs too high, it may be harder to locate and may drift out of optimal viewing range. Therefore, the 250–650 feet range matches the device’s design and training guidelines, making it the correct choice. The other ranges would fall outside the specified operating envelope and would not provide the intended visibility or safety characteristics.