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

2050

Reasons for using seal pots:

1 4895

Definition of reverse and acting controllers:

Monnet,

2378

Thermocouples work as follow:

Dashen Brewery, Tata Power,

1 3695

An RTD is a_________________________.it works as follows

2 5231

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

2156

two common seiling liquid used in seal pots are:

Thermax,

1 4008

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

2 5525

The DCS has the following signal type:

3 6892

Reasons for using current as signal

1 4956

Functions of electropneumatic valve positioner:

4 7856

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

2 4770

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

2 4866

what is working principle of presure and temperature guage?

4 34967

What is Fieldbus?

NSL,

3 9156

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Un-Answered Questions { Instrumentation }

What is zone,loop/fire alarm system?

2749

Explain PID, ON/OFF, Controls

2086

How to Calibrate Level Troll in field

1467

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.

2070

how to measure draft pressure in transmitter pl. give its single line digram

2033

What is the start up procedure of desalter

3743

How to erection of DCS Panel at site step by step

1549

how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

1947

Can Any body tell me about the Contact or Email id of any good Consultancy which help me to find a job in Instrumentation Field in India .I have Six years of Work Experience in the Same field.Please revert me back on shammi_gwalior@yahoo.com ?

1896

how the arrangement of equipments done in control room

2060

how to calibrate corollaries (Mass flow meter)?

2236

What is the difference between modbus,fieldbus & profibus

2474

what is the process for double acting cylinder pneumatic for 32' v/v

2130

In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

1877

How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

2155

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