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

Instrumentation Interview Questions

Questions Answers Views Company eMail

typical loop drawing of a simple feedback control comprising of one transmitter and one control

1989

Reasons for using seal pots:

1 4769

Definition of reverse and acting controllers:

Monnet,

2315

Thermocouples work as follow:

Dashen Brewery, Tata Power,

1 3604

An RTD is a_________________________.it works as follows

2 5116

Type of level transmitter commnly used in Procees area are the following. a.________________This type of level transmitter works as follows

2110

two common seiling liquid used in seal pots are:

Thermax,

1 3919

The DCS stand for________________________. it is composed of the following major components: a:______________ b:______________ c:______________ d:______________

2 5430

The DCS has the following signal type:

3 6757

Reasons for using current as signal

1 4871

Functions of electropneumatic valve positioner:

4 7710

we re giviang 24v supply to transmitter and we getting output from tx?now my question is wht we call this complete proces?

2 4668

in i/o panel for digital ouput(do) how much power(in volts) we must give?

2 4771

what is working principle of presure and temperature guage?

4 34769

What is Fieldbus?

NSL,

3 8993

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

How to calibrate Magnetic flow Transmitter in Field

1270

please tel me the calibration of pneumatic controler.

2150

What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

3935

what is a half wave, full wave, and bridge rectifer.

1782

Explain the difference between plc and cnc?

1067

Why mmwc unit is used?

1193

What are different type of instrument cable

2271

What is zener diode? What is voltage regulator?

1101

how to commission furnace ( water heater)

2047

Give 2 application of quartz crystal used for process parameter measurement.

2014

in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

2024

In bently nevada vibration monitoring system,what is the reason to maintain the Resistance of the probe + extension cable equal to 95 ohm? If possible explain the basic principle of measurement with detail electronic circuits.

2957

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

1164

How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?

2952

what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

2118

For More Un-Answered { Instrumentation } Questions Click Here