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Answer Posted / roy.bijoy067
a relay use in conventional system and it working/operation
is fixed put plc is used in automation system and it
operation can be change according to our need.
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sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com
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