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 6847

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

ADMA OPCO,

2 6015

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

ADMA OPCO,

2767

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

ADMA OPCO,

3 7683

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 7913

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 7527

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 4488

Worley Parsons,

1 5041

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 5808

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

JPL,

1 4310

What is the difference between ROM & RAM .

Sabic, SPIC,

1 5579

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

1 4685

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

1993

What is the difference between EPROM & EEPROM.

Sabic,

1 9334

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

Sabic,

2 6077

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Un-Answered Questions { Instrumentation }

what can of fault ofently come in vibration mesurement?

2144

Programmable Logic control.

1954

in mass flow meter what is drive friquancy ?

2091

What is the use of temperature compensation?

1998

Please tell me details about Sox,Nox,SWAS analyser????

3724

Explain the use of hair spring in the pressure gauge.

1086

what is the different between deflection type measurement and null type measurement in RTD?

1891

What is shielding effect?

2239

what is the difference between scaler and vector drive

2174

how can use ram

2048

Define the difference between a stable versus an unstable controlled system and some of the tools you might use to be able to detect when this is happening and assumptions used for control system application design that could contribute to instability

1834

How to convert mmWc(mili meter water colam) to tph(ton per hour)?

981

Which types of quections asked in interview for FORMULATION PLANT (PHARMA)

6704

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

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

1373

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