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?
(a) Only one
(b) Only two
(c) All the three
(d) None
Explanation:
Statement I: Incorrect. Not all UAVs can do vertical landing. Only certain types, like multi-rotor drones, have vertical takeoff and landing (VTOL) capability. Fixed-wing UAVs typically require runways.
Statement II: Incorrect. Not all UAVs are designed for automated hovering. Hovering requires specific flight mechanics (like rotors), which fixed-wing UAVs do not have.
Statement III: While many UAVs use batteries, the word “only” makes this statement restrictive. However, UAVs can also be powered by other sources like fuel (petrol/diesel), solar energy, or hybrid systems. Therefore, this statement is also incorrect.
Correct Answer: (d) None
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