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GATE CH 2021 | Question: 11

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Which of the following is $\text{NOT}$ a standard to transmit measurement and control signals?

  1. $4-20 \: \text{mA}$
  2. $3-15 \text{ psig}$
  3. $0-100\: \%$
  4. $1-5 \text{ VDC}$
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