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Instrumentation Interview Questions
Questions Answers Views Company eMail

May I have a brief note above the voltage barriers? Whats is the purpose? Please mail me if you've operational details, mail id: rajkumar.diice@gmail.com

1152

where Pirani gauges are uesd in case of pressure measurement?

3 5108

What s PDS & PDMS tools ?its role in instrumentation?

1 8387

generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 4631

units of pressure,flow, level,temperature? principle of pressure gauge? calibration of pressure tx., level tx., temperature tx.flow tx.? description of two wire ,three wire and four wire R.T.D.? WHAT IS INPUT AND OUTPUT OF TX.? WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE? WHAT IS HOT LOOP AND COLD LOOP? WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.? PRINCIPLE AND WORKING OF HART? WHAT IS PNP AND NPN PROXY? CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH? DESCRIPTION OF FIELDBUS FOUNDATION? WORKING OF SOV.?

2 3686

HI FRIENDS IHAVE QUESTION 1.WHAT IS PARTIALSTROKE TEST?WHY IT IS USED ON ESD ON OFF VALVES?

KNPC,

3 4257

HI FRIENDS IHAVE QUESTION 1.WHAT IS PARTIALSTROKE TEST?WHY IT IS USED ON ESD ON OFF VALVES?

KNPC, Rotork,

3 5794

Why 4ma - 20ma signal used in instrumentation??

5 11783

what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .

3932

what is the safety integrity levels (SIL)

1 3588

hello sir/madam, I,Subramanian need 5yrs placement papers of officer trainee of Instrumentation technology.pls send to this mail id mani_nxtgen@yahoo.co.in please do the needful. with regards, subramanian.v

1258

What is feed factor and its Importance in cement industry? How we can solve feed factor?.

2646

what is the Difference betwee the Hart and smart series Pressure transmitter

HPCL Mittal Pipelines Limited HMEL, Kastech Instrumentation,

1 1979

Coal mill Instruments Equipments for cement plant And process diagram ?

1870

why the positioner output is 3-15psi

5 7843


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Un-Answered Questions { Instrumentation }

A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer

1163


How many ohms are required for proper earthing?

193


What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?

13035


is there any digitel grevity meter availaible in the market by which we can measure specific gravity of a battery?

1323


when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

1250






If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

1119


how to check earthing,what is minum ohms for proper earthing

1053


what is difference between fork type and capacitance type level switch. where it is using

1457


In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?

1013


Explain the mechanism behind the turbine meter.

188


any questions on motor and energy conversions machines?

1291


In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?

1019


what are the selections available in configuring a burnout protection of a controller? thanks

995


Where Can i take a SPI INtools training in Mumbai? In Rolta India Ltd to whom I should approach regarding of SPI INtools Training?

1642


I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

1027