UPSC Prelims 2025 · Question 2 of 100
UPSC Prelims 2025 question on Uav Types Hovering Vertical Landing
- ExamUPSC CSE
- Year2025
- PaperGeneral Studies Paper I
- SubjectScience and Technology
- TopicDefence Technology
- DifficultyMedium
- TypeStatement
With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements:
I. All types of UAVs can do vertical landing.
II. All types of UAVs can do automated hovering.
III. All types of UAVs can use battery only as a source of power supply.
How many of the statements given above are correct?
Show answer
Answer: D. None
Analysis
None of the statements are correct → Option (d).
Statement by statement
Statement I – INCORRECT: A fixed-wing drone is an aerial vehicle that utilizes rigid wings, a fuselage, tails, a propeller, and a motor to cover long distances at high speeds. Unlike other drones, they cannot hover or land at specific points, requiring a runway or a net for landing. Thus all drones (for example fixed-wing drones) cannot do vertical landing.
Statement II – INCORRECT: Again, unlike other drones, traditional fixed-wing drones cannot hover or land at specific points, requiring a runway or a net for landing. Not all UAVs can do automated hovering.
Statement III – INCORRECT: UAVs come in many configurations including multirotors, fixed-wing UAVs, hybrid VTOLs, and high-endurance military UAVs (e.g., Predator drones). Many of these cannot rely solely on batteries due to power and endurance limitations. Batteries cannot provide sufficient power or duration for long-range and military UAVs.
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