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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is intools software

2 23162

what is the vital subject for scoring bhel exam&what is the question pattern

Bhel,

2479

I need the intools training institute address in india. Intools subject oriented local authors books.Refer me plz

3 12924

Can anyone explain in a simple way the difference between DCS and PLC?

Honeywell,

7 14102

i have one absolute pressure transmitter for the range is -400mmhg to 400mmhg. If i do the zero trim at atmosphere the transmitter should be give 4ma or 12ma? which one is correct?

2 8090

What is cv of control valve

Cadila,

4 11402

detail of mass flow meter pricipal

2361

Why 4-20mA SIGNAL IS PREFERRED OVEA A 0-10v signal?

5 12271

What is the difference between Pressure Safety Valve and Pressure Relieve Valve, in what condition we prefer choose Pressure Safety Valve rather than Pressure Relieve Valve? and vice versa

Vedanta,

2 14277

Y to use 4 to 20ma instead of 0-10v

5 11128

what is the operation philosophy of proximity velocity sensor

1 6117

What is passive connection of instrument in different types of IO module?

2 6153

can someone tell me about electronic speed switch &how it conect with proximittyswitch?(with dgm)

2010

Any Transmitter Range (Span value) start from 2?

Exxon Mobil,

1 4183

How can we check Zero of DP type Level Transmitter onside?

Birla,

7 22888

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Un-Answered Questions { Instrumentation }

Name different types of bourdon tubes.

1201

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

2095

I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.

2412

What is three element in drum level?

1456

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

1419

in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

2316

How INtools is useful for routine Instrument maintenance?

2132

what is your eligibility criteria for freashers?

2198

POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?

2337

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

3591

1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?

2273

can you send remote seal interface level transmitter calculation steps for oil water saperator.

2676

How do you identify between actual alarm and false alarm in a Temperature Transmitter in SCADA based Control System

1422

what is function of SCADA , and how is it work, explain with difination

2445

when a magnet is heated?

2039

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