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 4138

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

Reliance,

1 4980

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

Rosemount,

4 5277

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

5 7282

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 4996

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

Rosemount,

3 5047

How to work mass flow meter ?

1 3626

How to work ultrasonic flow meter ?

1 3530

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

1 2681

What is difference between reset and initialization in system.

Marafiq,

1 3958

Where should we terminate the shield and why?

OPaL,

3 5469

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,

1725

What is the different between of rtd and thermocouple ?

6 7293

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

Forbes Marshall, Reliance,

1 5191

why 4 to 20 ma used at 0 set

Borouge, Yokogawa,

2 4991

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Linear amplifier.

1971

Can any one tell me what type of question asked for instrumentation and control interview panel??? pls mail ramashankar.goel@gmail.com

866

which type of zones used for boiler? & why ?

1825

we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?

2536

whatis range of marcury filled tempereture gague

1904

How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

2302

why would you like to join our company

1323

What is instrumentation instrumentation engineering?

1063

what is wave length were using ?

1851

use of split range ? where it is used ? in which control loop it is used ?

1928

List three types Level Switches with their working principles

2078

why we take %i0.0 as input for twido plc

2117

How d.p. Transmitter can be applied to close tank?

982

a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

2242

Name different parts of a pressure gauge.

1070

For More Un-Answered { Instrumentation } Questions Click Here