Mechanical Reasoning Tests | Electricity

 Questions on electricity usually take the form of simple circuit diagrams.

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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.

Example Question
1. How many switches need to be closed to light up one bulb?

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  • A) 1

  • B) 2

  • C) 3

  • D) 4

2. How many bulbs will light up when the switch is closed?

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  • A) 1

  • B) 2

  • C) 3

  • D) 4

3. If bulb 1 is removed, how many bulbs will light up when the switch is closed?

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  • A) 1

  • B) 2

  • C) 3

  • D) 4

Answer to Question
1. B – Two switches need to be closed to complete a circuit.
2. D – All 4 bulbs will light up.
3. B – Only bulbs 2 and 4 will light up.

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