Instrumentation Interview Questions
Questions Answers Views Company eMail

State 5 different method of level measurements.

SRACO,

3 5622

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

ADMA OPCO,

2 4772

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

ADMA OPCO,

2190

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

ADMA OPCO,

3 6437

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 6400

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 6546

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 3675

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.pls help me

Worley Parsons,

1 4208

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 4908

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

JPL,

1 3469

What is the difference between ROM & RAM .

Sabic, SPIC,

1 4574

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

1 3972

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

1521

What is the difference between EPROM & EEPROM.

Sabic,

1 8317

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

Sabic,

2 5083


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Un-Answered Questions { Instrumentation }

hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

2136


Why are the uses 24vdc in industries

487


what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1553


what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?

1746


what are the steps I have to deal with?

1739






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

932


field bus transmitter calibration procedure tell me

1334


protection relay watchdog contact operation?

1556


What is standard procedure of manual mapping in Radar type level transmitter?

1413


why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

2379


Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..

1385


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

627


what is compensation? temprature & pressure

1562


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?

1749


pls give me presant awerness quistion and answer in my emailid.

2305