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Answer Posted / sasi.n
Signal modulation auto-rerangeable remote transducer.
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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
what is zero and span ?
in differential pressure transmitter,min&max pressure range for hp&lp
Draw bode plot of any transfer function. Why is plotting bode necessary?
Exothermic reaction./ endothermic reaction
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
How ejector(or)evactor air pump is working in thermal power plant?
what is the procedure of O2 sensor(ABB) calibration?
Calibration procedure for water rotameters
We Have Two Field bus Pressure Transmitters of Different Sensor Range (I.E One is of Lower range and Another is of Higher Range).Is same Process Line. My Question is Can i provide Saturation Limit to my field Bus Transmitter as We can provide Saturation current limit to HART Instruments. As During Low Pressure Both Working OK ,But During High Pressure, transmitter with Lower sensor range Goes to Fault mode as Beyond its Sensor Limit it can Measure, So may I provide Saturation point Some where to Suppress This Fault during High Pressure.
how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.
What is zener diode? What is voltage regulator?
What is profibus?
Explain an adaptive / self-tuning controller’s major draw card.
