Question 5
What does the largest pin of a three-pin plug connect to?
The right answer is the one marked above.
The appliance's metal case, and through the socket to earth. Without it the RCCB could not detect a leak to the case.
Lesson: Chapter 10 — Power and energy in electrical appliances
The parts of a household circuit
5 of 5
Clear all your answers?
This erases every answer in this set and starts you again at question one. Your score will be gone.
Type these four numbers to confirm:
Those numbers don't match. Look at them again and type them.
This browser is not saving your answers, so no total can be shown.
Answer the question to continue.