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Instrumentation Interview Questions
Questions Answers Views Company eMail

If P will increase then what will happen with PID?

Chettinad, Galfar, Mehran Sugar Mills,

1 6061

Why we are using sqare root in flow?

4 8269

T.x range -0.1 to 0.2 milibar,so how much mili ampear at 0.1 milibar?

Sugar Factory,

7 9768

WHY RESISTANCE TEMPERATURE DETECTOR IS AN ACTIVE DEVICE

2 6317

how many mmwc are eual to 1kg/sq.cm & can we calculate mmwc into tph?

2 4865

what is linerity and non-linearity?

2 6685

Hi at present i m wrking with tire industry as a manager having gud ctc. Nw I am selected for 1 of the best chemical industry but my ctc is lower than current n also i hv 2 compromize vit post as post is also lower. I hv 6 yrs of exp in various type of industry. Should i join chemical industry as there ar lot of gud instrument than tire? Financialy i can manage 4 more 2 yrs. Bt during wrking vit tire industry i found there is very less instrument n feel that opportunity is less. Pl ans quickly. I have less time to decide.

1 3595

how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr

7920

how to calculate the temp. of RTD&Thermocouple when we got some mV r Ohms?if anybody has d chart pls mail the chatrs to me...

1 4627

how to caluculate flow by using transmitter?tell me plz I am eagerly waiting for your reply..

Agi Glaspac, Reliance Power,

2 5847

why do we use 4-20mA as o/p and why don't use 0-20mA or 5- 21mA?

3 9103

what is PID n give me brief info. about P&I&D.

2 6440

why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.

ONGC,

2734

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

3 7439

what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

2533


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

What materials are used in thermo wells?

1167


what is sil (safety integrity level

2734


what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.

2042


Linear amplifier.

2015


What is Positive Calibration and Negative Calibration?

2246


where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com

3543


What is Predictive Maintenance

1166


How does work A temperature valve or fv control valve in process plz brief me

2447


Explain about safety integrated level protection? . How it was differ from other protections ?

1744


while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

1897


a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

2281


draw shematic diagram of c/v positioner(smart type)?

2220


HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.

2266


how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

2476


Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com

3207