Third pin in a 3-pin plug is provided so as to ________. – McqOptions

MCQOPTIONS

1.	Third pin in a 3-pin plug is provided so as to ________.
A.	provide an earth connection
B.	provide a 3-phase supply, when required
C.	provide a spare phase when required
D.	prevent the plug being reversed in the socket
Answer» B. provide a 3-phase supply, when required

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