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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?

2077

It is desired to reduce effect of 50Hz pick up in a thermocouple measurement. If a third order LP filter is used for this, what should be its cut off frequency, if gain should be 0.001 at 50Hz.

Honeywell,

1 3917

What is sensitivity of K type thermocouple? Is polarity important in thermocouple connections?

Honeywell,

3 10634

How can one improve linearity of an RTD based temperature measurement system?

Honeywell,

2 7532

What is cold junction compensation in thermocouples? How is it achieved?

Honeywell,

4 11613

How does one detrmine the direction of movement of core in an LVDT?

Honeywell,

2 6657

What is an instrumentation amplifier? How is it better than a differential amplifier when handling outputs from a wheatstone's bridge?

Honeywell,

2 6940

How INtools is useful for routine Instrument maintenance?

2094

What are the problems faced while testing HART instruments?

SSC,

1 4939

please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 4156

if drum level is low what is interlock? i mean we put interlock to fd fan or id fan ?

4 13769

suppose in dcs range of a flow transmitter is 10t/hr what is dp for 50% in 2500mmwc

Chevron,

6 13205

Waht is surge in compressors and how to control it?

DEWA,

1 3886

What is surge in compressors? How to detect and control it?

DEWA,

1 8101

what is procedure of calibration of remote seal transmiter, botom to top flanch 850mm, fluid liquid density .73, transmiter fixed on a fractionation colum, under vaccume 10mbar

4 7586

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Un-Answered Questions { Instrumentation }

How we connect a instrument with ground, Give brief explanation with help of diagram?

2096

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

2184

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

3132

please tell no. & add. of consultancy who recruit me in power plant as instrumen engg. present i m working in power plant as ass.t instrument engg. thanku mahesh 09226562826

2092

what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.

2056

why is not useing in boiler skin thermocople

5283

why orfice is not used for main steam flow calculation

2136

can any send me a forbes marshall dtron 316 manual

1958

Specific gravity.

1887

Why trim span ? How?

1612

hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com

1935

Explain the combusion chamber

2030

how to turbine speed measurement?

1588

What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?

1988

what is difference between HOT permit and cold permit

2210

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