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

Instrumentation Interview Questions

Questions Answers Views Company eMail

Why in turbine used two critical speed band ?

Ankit Metal Power,

1 4201

why gray colour is choosing to all instrument panel.why not choosing other colour?

Reliance,

1 5051

How we select the range of level transmitter in closed vessel ?

Rosemount,

4 5411

why the output sugnal is 4-20 ma and not 4-25 ma?

5 7461

I have transmitter of range -20 to -5 kpa.if it is possible to zero trim with atmospheric pressure,means HP and lp having no pressure...what will get after zero trim and it is the right way.....plz give me reply ....

KOC,

3 5118

How to find the range of DP cell Transmitter for measurement of level in closed vessel.

Rosemount,

3 5178

How to work mass flow meter ?

1 3703

How to work ultrasonic flow meter ?

1 3608

What are the cable come out from the paddle type flow sensor.and how is further connections

1 2751

What is difference between reset and initialization in system.

Marafiq,

1 4053

Where should we terminate the shield and why?

OPaL,

3 5578

Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

Chagalesh Consulting Engineers,

1762

What is the different between of rtd and thermocouple ?

6 7480

what is cavitation in control valve? & how we can avoid it?

Forbes Marshall, Reliance,

1 5264

why 4 to 20 ma used at 0 set

Borouge, Yokogawa,

2 5080

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Un-Answered Questions { Instrumentation }

can anyone tell me about the basic concepts to consider before to start a PLC panel wiring

1917

In turbine what does term CDP, NH, HSSOC means.

1766

full process of gas turbin?

2103

How d.p. Transmitter can be applied to open tank?

1128

If relative y axis vibration sensor is by passed, and relative x axis and absolute sensor is left working. how much monitoring i would have risked?

1452

A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

2248

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

2615

need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job

1885

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

1845

Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor

2139

what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?

2178

i am preparing for BARC ,so plz mail me how to prepare for BARC. ALSO IF POSIBLE SOME RELATED QUESTIONS. MY MAIL ID IS khushi_4uall2003@yahoo.co.in

3009

what is exact time to study dcs and plc cources

2046

Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?

1927

What are the type of bonnets in the control valves?

1863

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