Mechanical Reasoning Tests | Electricity
Questions on electricity usually take the form of simple circuit diagrams.
These diagrams are usually restricted to showing the power source, switches, loads (typically bulbs), and the path of the wiring. To answer these questions you need a basic understanding of how electricity flows around a circuit.
1. How many switches need to be closed to light up one bulb?
2. How many bulbs will light up when the switch is closed?
3. If bulb 1 is removed, how many bulbs will light up when the switch is closed?