I want to know the questions asked in ONGC interview(after
being selected in the written exam) for Instrumentation
branch.Kindly help.
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8 Answers Qatar Airlines, Qatar Petroleums,
Is there’s power on the bus (if so, state whether on the signal bus, or on a separate in the following: a) HART b) Profibus DP c) Profibus PA d) DeviceNet e) Foundation Fieldbus
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