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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?

2074

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 3911

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

Honeywell,

3 10621

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

Honeywell,

2 7525

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

Honeywell,

4 11593

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

Honeywell,

2 6648

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

Honeywell,

2 6928

How INtools is useful for routine Instrument maintenance?

2084

What are the problems faced while testing HART instruments?

SSC,

1 4927

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

1 4149

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

4 13753

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

Chevron,

6 13186

Waht is surge in compressors and how to control it?

DEWA,

1 3875

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

DEWA,

1 8086

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 7570


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1965


What are the type of bonnets in the control valves?

1868


what is difference between HOT permit and cold permit

2198


god evening sir i am studying m.sc(tech)electronics &instrumention.am i elegible to all industies

1809


What is the purpose of LO Overhead tank in turbines.

2008


What you mean by multi stage control vavles?

1811


Which type of diagphram use in costic line,DM water line,natural gas line,oil line?

3919


How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,

3185


what effects a surging can produce in the compressor

1918


I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

2202


Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

1540


What is the use of control cable?

1153


why fuse block is not used for AI signal?

1892


Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?

1930


How to interfacing microcontroller with a DC motor

2058