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

Instrumentation Interview Questions

Questions Answers Views Company eMail

There are many type of control cable like pair,core,tried, What are defination each one

Birla,

2148

How to work togather like sov,limit switch,proxy switch and booster in xv

4221

in a power plant main steam flow is volumetric or mass flow? is it required compensation?

Wartsila,

1 5465

what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

2 5398

how u meassure room temp?is it possible 2 meassure room temp by rtd or thermocouple?between rtd n thrmocouple which is more regard?3 meassure diff. between rtd n thermocouple?

3 6584

how many types of spped sensors n vibration sensors?their basic principle n connection?

IOCL, ITC Infotech,

2566

can a control valve works without positioner?why need tunning of c/v?

4 8408

why need 3 element system in power plant? if it is not there then what l happen?

5 12344

what is axial shift n what is differential expansion in turbine? how many sensor probes r mounted for this n how it works?

Apple,

2 33194

basic connection and principle of axial shift sensor n differential sensors in tubine describes n draw......

2368

in a power plant which system are compensated?

2 5445

what do u mean by 2/3 soleniod valves?

Nile Sugar,

8 35178

how to calibrate the interface leveltrol

Lanco,

1 6898

what is the reason for flow fluctuations happen on differential flow transmitter during in service

2 5880

what is the path to communicate from profi to ofc.what is the means of communication.what is multi cire cable in ofc.

1 4109

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Un-Answered Questions { Instrumentation }

How many types of sensor

1616

can you send remote seal interface level transmitter calculation steps for oil water saperator.

2615

how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

5670

can any one explain in which term we are flow flow is it volumetric r is it mass? and y

1930

Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;

2178

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

3934

how to turbine speed measurement?

1582

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 values of fuel flow rate in various places in boiler.

1726

How to Calibrate Radar Level Transmitter in Field

1243

is motorized valve closed when power shutoff?

1730

in differential pressure transmitter,min&max pressure range for hp&lp

1997

What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus

5858

State some of balance principle’ advantages?

1176

What are the types of valves?

1146

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