Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

GNFC, HPCL, Thermax, Polmon, Aramco,

5 11062

What is the meaning of the term "g force"?

Reliance, Saint Gobain, Thermax,

3 8656

What is the relationship between the universal gravitational constant (G) and the acceleration due to gravity (g)?


3 30748

Identify the electrical variable that is either directly or inferentially used by various instruments to determine the value of a measured variable.

4 5311

Describe how to calibrate various types of instruments and transmitters using ISA industrial consensus standard techniques.


4 9612

Identify and use the ANSI/ISA-S5.1 consensus industrial standard process symbols.

GAIL, Olympia,


Troubleshoot to the device level basic process control systems given the Process and Instrumentation Diagram?

HPCL, Chettinad,

2 6647

Convert a pressure, level, flow, or temperature process variable value into the appropriate pneumatic or electrical value given different types of instruments.

Jindal, Thermax, MCL,

6 14029

Determine the manipulated variable, controlled variable, and the measured variable given a description of various typical industrial processes.


6 31516

How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.

EID Parry,

1 3382

How the warning lamp of a charging-system is activated ?


Technician A says the brake warning light is connected into both the parking and service brake systems. Technician B says the brake warning light will come ON only if the service brake system fails. Who is correct?

2 3393

If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?


Technician A says that a fuel tank sending unit will have a high resistance only when the tank is full. Technician B says that its resistance when the tank is full depends on whether the sending unit is designed for use with a bimetallic gauge or with a magnetic gauge. Who is correct?

3 4914

what will the sending unit in the fuel gauge utilizes?


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Un-Answered Questions { Instrumentation }

why is not useing in boiler skin thermocople


all questions related to instrument technician in any offshore oil and gas company.


Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer


which type of zones used for boiler? & why ?


What is three element in drum level?


how to convert cubic metre per hour to newton cubic metre per hour


what is insdustrial vibration.who it works. give atleast 2 types of insdustrial vibration


what is sliding spool valves?


how to connect transmitter measuring sulfur process? 1-by using long impulse line or 2- by using coated short impulse line


Positioner usage.


Hi i am aneesh, done btech in applied electronics & instrumentatiin. And then i took mba in finance & marketing.After that i got placement in finance co and worked there for 3.5 yrs.Now i wanted to come back to engineering job.But without engg experience, i may not able to find an opening.i have done a course related to flow meters and ite calibrations. Kindly suggest where should i try to get a job?


what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other


How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?


How to calibrate H2s Dectector


please tell me what is a light up procedure of Cfbc boiler and what it's axuillaries of cfbc boiler?