Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

if we mount flow tube in arrow direction then flow comes in negative & if we mount it another direction then flow comes positive,So what will be the problem

2 5011

if tx. dp increase or decrese what happend in the reading

BSP,

1 5212

how can calibrate vacume trasmitter by HART COMMUNICATOR ?

Bajaj, IMECO,

3 7601

What's the difference between cold loop test and hot loop test?

5 43892

Can we calibrate an actuator?

Siemens,

5 12823

What is Cu-100 and Cu-1000 ? and tell me its application ?

2 6965

why we cant transmit the dc current easily

1 5247

What is the Temperature Co-officient of Resistance of PT- 1000 and PT-2000 ?

Adani, Birla, MEIL,

2 9457

Consider a control valve action,the inlet air pressure is only 6 ksc but physically how it can be operate against 100 ksc line fluid pressure?

SCS,

2 7282

ABB DCS (AC 800 M)redundency take howmany milliseconds to switch from master controller to slave?should be less than DCS scanning time?

SCS,

2 6393

A DP Endress and Hauser flow transmitter is always tripping pump at low flow. set point is 74 cubic meter/hr. Thorough impulse line flushing and zero calibration has been done, yet problem persists. What do you think is the problem and how do you rectify this fault?

5 8306

how works encoder in plc

2138

Explain the usage of the PLC system?

3 6817

Explain the difference between the types of input variables plc?

1 4896

Is an analogue only transmitter as accurate as a smart transmitter?

SCA,

2 5182

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

KAlman filter code for two dimension?

2125

HOW TO CHOOSE FREAQUENCY IN FMCW TYPE RADAR INSTRUMENTS. DESIGN BASIS OR DESIGN CALCULATONS ?

2226

principle of automatic votage regulator

2190

Explain about safety integrated level protection? . How it was differ from other protections ?

1820

DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.

1951

What is shielding effect?

2301

Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

1586

Pl send the model question paper of mahagenco account officer post

2824

what is 24vdc live and dry supply

2321

What is the meaning of wet leg

1330

In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

2416

Why mmwc unit is used?

1255

can you provide me full detail about instrumentation in ONGC??

2219

Why upper weighing limit of electronics balance is 90% of the total weighing capacity?

2254

How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer

2840

For More Un-Answered { Instrumentation } Questions Click Here