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Instrumentation Interview Questions
Questions Answers Views Company eMail

what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?

2114

It is desired to reduce effect of 50Hz pick up in a thermocouple measurement. If a third order LP filter is used for this, what should be its cut off frequency, if gain should be 0.001 at 50Hz.

Honeywell,

1 3991

What is sensitivity of K type thermocouple? Is polarity important in thermocouple connections?

Honeywell,

3 10757

How can one improve linearity of an RTD based temperature measurement system?

Honeywell,

2 7630

What is cold junction compensation in thermocouples? How is it achieved?

Honeywell,

4 11798

How does one detrmine the direction of movement of core in an LVDT?

Honeywell,

2 6741

What is an instrumentation amplifier? How is it better than a differential amplifier when handling outputs from a wheatstone's bridge?

Honeywell,

2 7059

How INtools is useful for routine Instrument maintenance?

2132

What are the problems faced while testing HART instruments?

SSC,

1 5004

please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 4232

if drum level is low what is interlock? i mean we put interlock to fd fan or id fan ?

4 13918

suppose in dcs range of a flow transmitter is 10t/hr what is dp for 50% in 2500mmwc

Chevron,

6 13398

Waht is surge in compressors and how to control it?

DEWA,

1 3961

What is surge in compressors? How to detect and control it?

DEWA,

1 8202

what is procedure of calibration of remote seal transmiter, botom to top flanch 850mm, fluid liquid density .73, transmiter fixed on a fractionation colum, under vaccume 10mbar

4 7730


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Explain the combusion chamber

2078


what is the process to make control schematic ?

2281


can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

2170


what are the use of belew gear in general ??

2061


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 .

2934


what is stroke check for field instument transmetter's & AOV's

2254


Explain signal isolator

1226


Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?

10908


how to check earthing,what is minum ohms for proper earthing

1999


What is zener diode? What is voltage regulator?

1148


What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

3982


Introduce yourself which is not present in your biodata?

2490


There are many type of control cable like pair,core,tried, What are defination each one

2208


Why grounding is necessary? Give example with diagram.

2270


What do you know about gail?

2521