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Instrumentation Interview Questions
Questions Answers Views Company eMail

What is instrumentation control?

1160

Explain types of valves?

1056

Why plc require in analog input 4-20amp & 0-10 volt?

1139

What is the difference between mmwc and mmwg?

1377

Explain the difference between mmwc and mmwg?

5668

Explain why use mmwc unit?

1044

What are the types of valves?

1149

Where is wet leg is used?

1061

Explain the difference between differial pressure & delta pressure?

1 1621

Define cryogenic?

1166

Explain why plc require in analog input 4-20amp & 0-10 volt?

1096

Explain the difference between plc and cnc?

1069

Explain the key components of control loop?

1057

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

993

how to do dynolab wind speed sensor loop test, how to simulate value,i have simulate mA 4-20mA but not responding in DCS faceplate, please kindly advice me any one.

1046


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr

7920


i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

2095


What is the principle of capacitance type level transmitter?

1079


Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.

2072


IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

2395


What is loop1 and loop2 in MTS LT?

3845


how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

2351


How to calculate P,I&D value in PID controller ?

2137


What is ultrasonic flowmeter?

1110


Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

1789


I WANT SECURITY PAPER MILL, HOSHANGABAD TEST PAPER.KINDLY SEND TO MY MAIL ID

2787


how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

1887


In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.

2023


Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =

1941


please send the sample qustion paper for iocl written test ..

3716