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 6869

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

ADMA OPCO,

2 6042

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

ADMA OPCO,

2777

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

ADMA OPCO,

3 7698

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 7940

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 7538

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 4501

Worley Parsons,

1 5052

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 5822

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

JPL,

1 4335

What is the difference between ROM & RAM .

Sabic, SPIC,

1 5590

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

1 4695

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

2011

What is the difference between EPROM & EEPROM.

Sabic,

1 9347

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

Sabic,

2 6093

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Un-Answered Questions { Instrumentation }

what is temperature compensation?

5452

how to calibrate corollaries (Mass flow meter)?

2176

How is work 5/2 sov?

1889

How servomotor controls throttle valve of TURBINE?

1963

OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION

10717

Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions?

2188

how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?

3673

What is super thermocoupal?

2220

what is gas metering system? gas chromatograph? and gas compressors?

2458

Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

1854

How works weighfeeders in cement industry? what is the working principle?

2043

can we copy the software from a transmitter using hht(hart 275) ?

2082

What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

2134

I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?

2208

In apron feeder how TPH is calculated?

1740

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