Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

Why in turbine used two critical speed band ?

Ankit Metal Power,

1 4205

why gray colour is choosing to all instrument panel.why not choosing other colour?

Reliance,

1 5057

How we select the range of level transmitter in closed vessel ?

Rosemount,

4 5421

why the output sugnal is 4-20 ma and not 4-25 ma?

5 7479

I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

KOC,

3 5126

How to find the range of DP cell Transmitter for measurement of level in closed vessel.

Rosemount,

3 5193

How to work mass flow meter ?

1 3708

How to work ultrasonic flow meter ?

1 3613

What are the cable come out from the paddle type flow sensor.and how is further connections

1 2751

What is difference between reset and initialization in system.

Marafiq,

1 4058

Where should we terminate the shield and why?

OPaL,

3 5583

Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

Chagalesh Consulting Engineers,

1764

What is the different between of rtd and thermocouple ?

6 7482

what is cavitation in control valve? & how we can avoid it?

Forbes Marshall, Reliance,

1 5267

why 4 to 20 ma used at 0 set

Borouge, Yokogawa,

2 5090

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Do you have reference list?

1838

Can I calibrate the Electromagnetic Flow Meter on line and How.

1963

how to do dynolab wind speed sensor loop test, how to simulate value,i have simulate mA 4-20mA but not responding in DCS faceplate, please kindly advice me any one.

1046

What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?

3377

Can anyone convert a 5/2 way or 3/2 way valve into an ISO valve?

929

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.

2074

what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question

1929

How to Calibrate Vortex Flow transmitter in field

1271

hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?

2102

how to work MIL contol valve posistioner ?

2145

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?

2203

what is KV and XV valve

1796

how to calculate range of level transmitter?

2327

what is easiest way to read STL language in PLC?

3137

Why mixer nd grinder Is example of constant torque load not variable torque load ???

1958

For More Un-Answered { Instrumentation } Questions Click Here