Mr Kheng told BBC Radio Lincolnshire: “With these mini drones… before yesterday, you didn’t need to know anything about airspace or aviation.
“By taking the test, you will have that basic knowledge of airspace and airspace use.”
Before the new rule came into place, RAF Waddington and the Red Arrows posted on social media warning people to not fly drones in Flight Restriction Zones.
The base posted a map of the Flight Restriction Zone around RAF Waddington, which includes areas like Bracebridge Heath, North Hykeham, and Boothby Graffoe.
It said flying without permission “poses a serious safety and security risk” and advised users to check airspace restrictions before take-off.
Jonathan Nicholson, head of special projects at the CAA, said people who took the test felt “much more confident” flying their drones because they understood where they could operate.
Users who fail to take the test before flying will be breaking the law and liable to potential fines or even imprisonment.
Mr Nicholson said: “We want people to fly drones, we want people to enjoy drones, but they must do it safely and responsibly and that will ensure the future with drones in this country and worldwide.”