Instrumentation Interview Questions
Questions Answers Views Company eMail

What are the charcterstics of a P&ID controller block for Governor speed raise or lower for a load sharing functionality between 4 Gas turbines in droop mode.

TNPL,

2486

what are the steps to commissioning a DCS system?

BGR Energy,

2 15581

what is orifice plate? Give me best answer?....plz

5 9816

Can we use twisted pair cable instead of ethernet for communication?

Yokogawa,

1 7099

How does a redundant controller comes in line when the main controller fails??

Yokogawa,

3 8263

DCS marshilling Cabinet Power supply can be replace during plant running time?

1 4288

Why do we use 24V DC supply in instrumentation? What are its merits and demerits??

JSW, MJPRU,

1 8743

CAN WE CALIBRATE LEVEL TRANSMITTER USING HART COMMUNICATOR WHEN WATER LEVEL IS PRESENT IN THE BOILER SHELL?

Chemin, Emerson,

4 9221

pls suggest suitable MOC of diaphragm for pressure measurement of UREA grade solution service fluid.

Siemens,

2658

what is compensation in engineering and what is temperature compensation?

Binani, Yokogawa,

1 4775

1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

2214

I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.

JSW,

1883

what is the Difference Between Domain and Station?

Emerson,

3 9420

how to calculate density?

2 4615

How to check vortex flow meter is in good condition while we do not having calibration setup?

4 7496


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Un-Answered Questions { Instrumentation }

WHAT IS THE CAM POSITION IN CONTROL VALVE POSITIONER ? WHY IT IS USED?

543


all types of liquid analyzer principle with drawing?

1529


why we r opening HOT BYPASS valve during startup of a compressor?

1592


what happen if i increase height of displacer type LT.accuracy or sensitivity are affected.why?

2067


what is loop1 and loop2 in MTS LT?

4184






What is shielding effect?

1753


What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

3439


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

1392


please can any one tell me clearly about pid tuning i am confusing about this .how to tune pid easly?

1681


what is KV and XV valve

1290


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

925


Difference between ultra sonic flow meter

1547


I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.

1360


you must show the examples application and give at least 4 types of transducer/sensors that can minimize the failure during the manufacturing of the resistors.

2840


What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows   very argent : my mai is merajalam143545@yahoo.com

2027