प्रवासी विमानास सर्वात जास्त घातक धोका खालीलपैकी कोणत्या घटकापासून असतो ?

The correct answer is Option D (Hail).

Key Points:
• Core Concept
• In aviation meteorology, severe atmospheric phenomena pose varying risks to aircraft integrity and aerodynamics.
• Why Correct
• Hail (hailstones) represents an immediate, severe physical hazard to aircraft in flight. Large hailstones traveling at high relative velocity can shatter cockpit windshields, severely damage radomes, dent wing structures, and cause sudden catastrophic jet engine failure by damaging compressor and fan blades.
• Key Details
• Modern radar systems help commercial aircraft detect and navigate around cumulonimbus cells, but clear-air hail thrown miles from thunderstorms remains intensely destructive.
• Exam Traps
• While thunderstorms are dangerous weather systems, the specific physical agent responsible for severe, immediate structural and engine destruction during flight is hail.
• Other Options
• Thunderstorm (Option 1) encompasses multiple phenomena, but hail specifically shatters aircraft skin.
• Rain (Option 2) primarily reduces runway visibility.
• Cyclones (Option 3) are typically avoided in advance through wide strategic rerouting.
• Key Takeaway: Hail poses a grave physical hazard to aircraft in flight by damaging engines, wings, and cockpit windshields.