UPSC CSE Prelims 2025 Q42 — Science & Technology PYQ with Answer

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?