Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is the formulae to find the thermocouple output to temperature

5 8892

what is the difference between SMART and tipical transmeter ?

Sirte Oil Company,

3 7188

How can we cheak the ENCODER ?

1 4943

What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 3726

In s7-200 we use HMI TD-200C , what that C stands for........ plz reply

2 4764

can i use capillary type dp transmitter converted to capillary type pressure transmitter. if i removed one side capillary tube its work correctly?

1 5069

What is the use of keyphasor in turbine.

Hindustan Zinc, R&D,

7 35702

i have a dp tx range is 5000mmwc. in which calibration i use in a open tank.1.5*3.5*2.5 mtr.for level msmnt. what is the calculation.

Bajaj Hindusthan,

2 6621

capillary type tranmitter using remote seals and capillary tubes filled with liquid of known of known density so if you wanna callibrate it just close block valve just before capilary @ high side & connect druck apply it's calibrated range pressure as normal calibration ensure low side block valve must be closed & if you asking commissioning so this is not a DP type pressure tx so simple if you wanna put in servie this tx just open high side block valve & than low side block same way i do it but still transmitter showing -13 ma.just tell me what i want to do ?

Gasco,

1 5036

hye SAM acn u send your e mail id, so that i can solve my query through e mail?

2320

how to calculate temp.prapotional to mv in thermocoulpe.

Electronics, KNPC,

2 6995

Can we measure pressure using differential pressure transmitter? If yes then how?

Reliance,

5 10649

why are set -10vdc in bently neveda vibration system.

4 7877

What is the PLC configuration in Cement industry?

IMCO, Maha Cement,

3861

Can anyone send most commonley asked Instrumentation questions and answers in cement industry please?

2039

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Un-Answered Questions { Instrumentation }

Why ac supply load cell is used? Can we use the dc supply load cell?

1121

Explain the working principle of lvdt?

1248

What is instrumentation control?

1216

What are the interlocks we have to check during the start up of LP/HP compressor?

2044

why we r opening HOT BYPASS valve during startup of a compressor?

2167

What you mean by multi stage control vavles?

1851

what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

5123

Why MUX JB's are using only Temperature Element in Fundation field bus?

2386

Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?

2372

What is cut off relay? And why use in PLC and DCS?

1419

What is the working principle of the magnetic meter?

1196

any body please send me the old question papers of ongc test.

2153

how to work static pressure sensore how to work dpt

1934

what is temperature compensation?

5530

What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?

2096

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