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Instrumentation Interview Questions
Questions Answers Views Company eMail

How does work A temperature valve or fv control valve in process plz brief me

Jindal,

2392

Why rdt and thermocouple both give different output .and one things more, how to generate  ohm or mili volt  plz mail me merajalam143545@yahoo.com

Samsung,

2763

how to calculate static pressure in a pipe line,when we know the DP(differential pressure) in the line, area of the pipe? please any one tell me the relation between them..?

2 5875

how to convert MA in to measuring values..and how mwasuring values into MA ?..plz ansr.i have intervw

2623

Basic working principle of control valves

1 2700

The company where I am working, their is rosemount 5400 series radar type level transmitter, it is meant to show level of filled tank, but along with the level it is showing temperature also, so my question is how a onon-contact type radar type level transmitter can show temperature even if it does not have any contact with the fluid?

Process Control Technologies,

2222

If a normal magnetic type flow transmitter that can measure flow, temperature and show this parameters on field, is it possible by any means to get this (flow and temperature) parameters info. On dcs? And if yes then with HART, FO communication or any other communication system?

Process Control Technologies,

1 2813

If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.

Process Control Technologies,

1 4595

I have installed a RTD whose length is 2250mm(RTD stem length), but it's upper 200 -250mm is out of the reactor, and this upper 200mm stem is surrounded by atmospheric temp. And the lower portion i.e. 2000mm is in contact with the measuring fluid, then does the final measuring temp. Gonna change as the upper 200mm RTD stem is out of reactor?

Process Control Technologies,

1 2642

How does a single acting, spring return ball valve actually work? Does it require continuous air supply? 

Process Control Technologies,

2097

In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

Process Control Technologies,

1 4246

What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?

Process Control Technologies,

3132

Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?

Process Control Technologies,

2142

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? 

Process Control Technologies,

2115

What is shielding effect?

Process Control Technologies,

2197


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

NSV type probe stands for

2345


wich is coming the first HAZOP OR SIL

2711


What is heating effect?

2287


What is eddy current? Describe the operating principle of proximity probe.

2245


How to convert milliampares into flow??

1672


what about your moleg in pogrees with company

2232


Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.

2024


Speedtronic system .

1926


HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with

2040


typical loop drawing of a simple feedback control comprising of one transmitter and one control

1958


how to measure oxygen which methods are using?

1937


What is the principle of capacitance type level transmitter?

1030


what can of fault ofently come in vibration mesurement?

2105


why using negative supply for bentley nevada vibration system ?

2098


Identification of ss fittings, pilot valves, relief valve.

1786