tnteason
Mar 11, 2012, 06:41 PM
An automatic device that operates at preset values is known as a what.
stanfortyman
Mar 11, 2012, 06:52 PM
Please do your own homework.
thelionking12
Mar 11, 2012, 07:21 PM
78. An automatic device that operates at present values is known as
(A) mercury switch
(B) relay
(C) fuse
(D) contactor.
Get Answer:
B - Relay
Source :-
http://www.electricalquizzes.com/Circuit_Breakers/Circuit_Breakers_MCQs_6.htm
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