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

Instrumentation Interview Questions

Questions Answers Views Company eMail

State 5 different method of level measurements.

SRACO,

3 6858

what is the essential difference between DIODE and SCR in term of application.

ADMA OPCO,

2 6026

In turbine, what does term CDP, NI, NH, HSSOC, means

ADMA OPCO,

2770

An equipment is certified for EEX, IA, IIC, T6, what do you under stand by this.

ADMA OPCO,

3 7684

I HAVE PRESSURE TRANSMITTER WITH TWO WIRES 24 VOLTS SUPPLY.IF TRANSMITTER WILL GIVE SIGNAL TO THE DCS WHAT HAPPEN TO THE 24 VOLTS POWER SUPPLY IT WILL DROP OR REMAIN TO 24 VOLTS POWER SUPPLY.

3 7924

what is sequence table in DCS . make a logic in sequence table for tripping of ID fan in Boiler(in YOKOGAWA CS 3000 DCS).

Yokogawa,

1 7529

Dear all... I have 1 0-400 duplex type RTD, I connected the A side to the temperature indicator and B side to the PLC panel, but when I have observed then found that The PLC side temp has the variation. and it was distub to other RTD temp also. so what can I do.

1 4497

Worley Parsons,

1 5045

Can we used Condensate Pot on flow transmitter which is using on liquid having sluge and DP transmitter is in pit and below the process line,Can we used Condensate pot for accamulate the Sluge?

1 5814

What properties or parameters to be taken into consideration for protection while selection of Dcs controller.

JPL,

1 4319

What is the difference between ROM & RAM .

Sabic, SPIC,

1 5581

Can we use a 10000 Lph Flow Transmitter in 100 LPH flow line to get 20mA O/P by adjusting SPAN ?

1 4692

in differential pressure transmitter,min&max pressure range for hp&lp

2003

What is the difference between EPROM & EEPROM.

Sabic,

1 9336

What is scale factor of proximitor & unit of the viabration.

Sabic,

2 6083

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Un-Answered Questions { Instrumentation }

How to erection of DCS Panel at site step by step

1497

Make Heater Process Logic.

2103

I am manjunath having exp in maintenance of chemical plants,know i want to do a design course INTOOLS,after doing design course can we get jobs in design field.sinve i dont have design exp..

1741

Why rdt and thermocouple both give different output .and one things more, how to generate ohm or mili volt plz mail me merajalam143545@yahoo.com

2806

How to change dcs card in online. (Dsc is maxdna)

2734

in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?

3179

How to calculate P,I&D value in PID controller ?

2139

1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

1643

what are the use of belew gear in general ??

2003

What is mean by analytical instrumentation?

1813

How earthing can be checked????

2406

Explain why use mmwc unit?

1044

if my flow is 20000 m3/h than which range of DPT i have to use????

1835

What is ultrasonic flowmeter?

1110

What are advantages and disadvantage of the ac supply load cell?

1056

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