To begin with, you will be given information on all three wires in a domestic plug. Hit space to go to the first slide with information about live wires, press it again for information on earth wires, press it again for information about neutral wires, then press it once more to start the game. You will have 30 seconds to answer as many questions as you can. To cut a wire, simply click on the wire (blue, green with yellow or brown lines). Cut the right wire get a point, cut the wrong you lose 3 points.
School project. I played a game and got the high score of 25. Check out Scottwill22's version :