Answer / y.kathirvel

the smoke detector is a thing that detects the smoke by intensity variation of that area under control. if any fire occurs there the light intensity on that area decreases. this can be measured my photo metric method.Photometric measurement is based on photodetectors, devices (of several types) that produce an electric signal when exposed to light. Simple applications of this technology include switching luminaires on and off based on ambient light conditions, and light meters, used to measure the total amount of light incident on a point.its o/p will be in mV.

(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.

0 Answers   ADMA OPCO,

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what is input and output cards of plc needs to be hot swappable mean

1 Answers  

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the square root type transmitter r used to which applications

4 Answers   Roche,

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you are on site,the plant trips,you are approached by operations,what do you do?

0 Answers   ABB,

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what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

2 Answers  

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how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

0 Answers  

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Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.

1 Answers  

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What is input and output of vaiberation transmitter and what is its unit.

4 Answers   SMH,

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how commission a transmitter evev plant is already running

2 Answers  

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What is SLPC & MLPC? How it works?

2 Answers  

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ON RADAR INTERFACE LEVEL TRANSMITTER IF DI-ELECRIC IS WRONG WITH CONTINIUS PROCESS THAN HOW CAN INDENTIFY OR HOW CAN I PUT NEW DI-ELECTRIC VALUE?(ROSEMOUNT-TDR-3300-COXIAL PROBE TYPE)

1 Answers   Chevron Phillips,

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can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.

0 Answers  

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