Instrumentation Interview Questions
Questions Answers Views Company eMail

What denotes the 5/8mm in the 3300XL 5/8mm proximitor probe?

977

Ega interview going on for power plant. Which type of question will asked. For questions

EGA,

1012

it is possible to check the fail safe condition in pressure transmitter. if possible how?

888

Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

KOC,

922

Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?

1045

What is difference between radial vibration and axial vibration explain in detail .

Emerson,

1157

What is sensitivity in vibration probes..?

Lanco,

1027

what is the difference between magnetic flow meter and mass flowmeter

891

why I need valve guard and whats different between guard and positioner ??

871

I need to know steps to Calibration Valve Guard......

980

What is the cascade control

984

how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

KNPC,

836

what is KV and XV valve

1286

why would you like to join our company

Aramco,

873

while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

Petronas,

1337


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Un-Answered Questions { Instrumentation }

Full form of KKS when use DCS.

2599


can we create an interrupt in plc through scada?

1886


what is the different between deflection type measurement and null type measurement in RTD?

1448


I want to apply for the universities in US,but i got the GRE score of (650+300=950)TOEFL 69/120.Is this score sufficient for applying universities please i am married i need to go to US because my husband didn't get H1 yet.please send me suggestion

1438


How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)

2119






What are different type of instrument cable

1792


What is the use of gauge?

679


on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon

1690


What are de-saturators?

721


POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?

1750


Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1477


Questions on flow meters,few questions on HART protocol,

1561


How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?

5412


How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.

1617


TEMPERATURE VARIATION FOR FREQUENTLY.

1507