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Instrumentation Interview Questions
Questions Answers Views Company eMail

Difference between ultrasonic flow meter and radar type flow meter

Dodsal, Qatar Petroleums,

2 11917

WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT? 1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE. 2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100% OUTPUT. 3)LINEARITY PRBS. 4)1005 O/p IS CORRECT BUT ZEO POINT IS WRONG.

Reliance,

1 5083

Can a pneumatic control valve work without positioner?

SMC,

4 5332

How to adjust the zero & span of a control valve from the posiitioner(MIL)?

Bhel, SMC,

1 7266

WHAT IS SELF CLEAN ELCTRODE IN MAGNETIC FLOWMETER?? WHAT DO YOU MEAN BY THIS TERM??

IOCL,

2 6943

why to use 3 wire at RTD ? what's the reason for common wire ?

4 8081

What is the use of each wire in three wire RTD

GSPC,

1543

How to convert gpm into inches of eater.I nerd formula with example so pls help me.

1 2649

Please can anybody help for control valve sizing step by step procedure?

1148

Can anybody please let me know Orifice plate sizing calculation formula and step by step procedure

1035

Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 2896

how to set calibration range in a DP transmitter to measure level for a closed tank and for an open tank,and also please explain me how to set calibration range for a DP flow transmitter in a line ?

CCL Products, IOCL,

1 7619

While giving Power Supply of 24 VDC to a Transmitter,why Shield Terminal is connected either at Transmitter or at ISB.Why not Shield Terminal connected at both ends.If the Reason is to avoid Noise interference,which type of noice that is interfering.Is the Noice from the 24 VDC supply terminals or from any external source.

1 4116

what is ABB DCS SYSTEM?

OMV,

2 4416

How to find out the current of two motors having same power consumption but different RPM?

1095


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Un-Answered Questions { Instrumentation }

pls give me presant awerness quistion and answer in my emailid.

1830


How many types of sensor

686


-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.

1494


How to calibrate Field bus transmitter? procedure ?

1369


Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

163






how to check earthing,what is minum ohms for proper earthing

1050


how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

1041


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

1177


Give Detail information about plc,dcs,and scada system?

792


how do calibrate the valves.. with clear manual

1065


plz send me general of ongc

1074


we are using centum vp as monitoring with Dell precision work station T3600 but some times PC(s) are restarted automatically . how we can solve this problem? thanks

1315


how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

4795


Explain the use of hair spring in the pressure gauge.

160


Please any one can provide latest aptitude test,technical test and interview questions for tata consulting engineering (TCE) i need it asap thanks in advance

1097