Instrumentation Interview Questions
Questions Answers Views Company eMail

how to calibrate 0- 150 psi presure gauge by dead weght tester

1472

Explain what is meant by the term “FLASH POINT” of liquid?

2 5326

How can measure flow in oil line?which type of transmitter is generally used?

1 3507

what is the way of measuring air flow in air duct?explaim instruments used and DP creation in line?

3 5268

How oil line flow measured?eplain about instruments used and working principle?

1518

DC motor and DC Drives working funda?

1 4023

wich is coming the first HAZOP OR SIL

2297

why we use casced loop

6 7364

PLZ explain to me massflow

4 5528

wt kind of business we can do by usig PLC?

Dabur,

2 4984

what the differant between Wet Leg /Dry Leg

Sepam Group,

2 25670

where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia

9296

what are the different types of communication cables used in automation and what are the difference in the cables

KN,

1 3184

in control valve is constructed as per API 6D or API 6A, then which standard is used for fire testing of valve?.

1 3550

in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

1555


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Un-Answered Questions { Instrumentation }

plz tell me clearly about PID.."when v have to change I value,D value,GAIN??

1656


what is dc moter.

1739


If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

1604


What is 3 selection available when configure the burnout protection for controller

2039


What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?

1663






how is work pressure switch& level switch?what is the principle of this?

2104


why orfice is not used for main steam flow calculation

1586


What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

1620


State bernoulli’s application.

650


Explain signal isolator

738


what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .

4386


Using your own examples solve a problem involving normal table. (experimental method and analysis)

659


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

1701


draw shematic diagram of c/v positioner(smart type)?

1737


What is offset in a control system.

7919