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Instrumentation Interview Questions
Questions Answers Views Company eMail

Operational amplifiers

CCIE,

1909

What is the input impedence of an OPAMP as an ideal device.

CCIE,

1 3639

Boolean algebra

CCIE,

2121

Specific gravity.

CCIE,

1823

Conversions

CCIE, Nestle,

2092

Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.

CCIE,

1884

Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

CCIE,

1800

Positioner usage.

CCIE,

1882

Emergency Shutdown Systems/ Plant Shutdown System.

CCIE,

2197

Area classification, Equipments, Gas groups, temperature classification, Ingress protection, Fire Extinguishers.

CCIE,

1928

How many are the types of instrument cables in terms of No. of pair.

CCIE, Samsung,

2148

What kind of feedback is used in DP cells.

CCIE,

1 3857

Exothermic reaction./ endothermic reaction

CCIE,

2003

Gas equation

CCIE,

1795

Galvanizing.

CCIE,

1907


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??

7461


If P will increase then what will happen with PID?

5986


How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

1452


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.

1746


How to measure the dust in chimney(spm)?

4043


how to calibrate and troubleshooting of leveltroll?

2127


I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .

1921


Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

2065


if in a level tx height is given, how u calculate the ranges of the tx?

7598


what is the difference between profibus and controlnet networking.

3155


how to convert MA in to measuring values..and how mwasuring values into MA ?..plz ansr.i have intervw

2615


a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

2237


How earthing can be checked????

2361


I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

1839


what is zero and span ?

1608