Answer / seema

Plc Means Programmable logic control.

CNC Means Computerized numerical control.

CNC used for controlling the movement by numerical value.
nowadays it widely used in automatic machines like which is
to program & do any operation

Hello friends i need check lists of different instruments during the Erection and commissioning in thermal power plant.Please help me.My Mail id is naba02222@gmail.com/naba02222@rediffmail.com Thanks Nabakishore Biswal

1 Answers  

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What is live zero and dead zero

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Wht should be the ratio of natural frequency (Fn) to wake frequency (Fw) and wht if goes above the rato limit?

2 Answers  

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During valve sizing from all calculation you got flow coefficient CV 12,than what it means? like for selecting pressure transmitter if your MAWP is 12 bar than you select a capsule of max. 20 bar which cover your mawp 12 in same way for selecting control valve If CV is 12 than how we use it in selecting valve??????

1 Answers  

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what is the difference between cold loop and hot loop

2 Answers  

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what is Instrument Schedule, and what it is mainly used for?

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what are the use of belew gear in general ??

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what are the sensor types of vibration&speed?n what is proximity sensor?

3 Answers  

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what is the advantage by using PID controller than P& PID?

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In the field and in the control room different power supplies if used How to handle the ground

1 Answers   ITC Infotech,

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Why flow/pressure transmitter before control valve?

0 Answers   UPL,

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The wire is disconnected from the temperature sending unit (magnetic gauge). A voltmeter connected to the wire reads 0v. What does this indicate?

2 Answers  

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