Answer / prashant sharma

NAK is negative acknowledgment or not acknowledged. It is a
signal used in digital communications to ensure that data
is received with a minimum of errors. Sometimes the NAK
signal is called REJ (for rejection or rejected).

Why we using 250ohm resistance during lab calibration and why not using in field in one plz define deeply???

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hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

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I have a steam flow DP transmitter that has output swinging. Steam valve is in manual.I have good steam pressure. The impulse lines have steam tracing on them. The steam tracing has a hole in it that is blowing raw steam on the high side impulse line only. Could this be causing the swinging?

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