Technology : Information Technology (IT) And Robotics (AI)

Q 4 / 37
With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements :
  1. All types of UAVs can do vertical landing.
  2. All types of UAVs can do automated hovering.
  3. All types of UAVs can use battery only as a source of power supply.
How many of the statements given above are correct?