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Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

Aramco, GNFC, HPCL, Polmon, Thermax,

5 13716

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

Reliance, Saint Gobain, Thermax,

3 9971

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

APPSC,

3 32810

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

4 6401

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

Reliance,

4 11429

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

GAIL, Olympia,

2590

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

Chettinad, HPCL,

2 7775

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

Jindal, MCL, Thermax,

6 16013

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

Honeywell,

6 35659

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 4012

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

1696

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 4066

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

1193

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 5907

what will the sending unit in the fuel gauge utilizes?

996


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Un-Answered Questions { Instrumentation }

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

831


Coal mill Instruments Equipments for cement plant And process diagram ?

1884


what is IEC code in cables & how to selecting cables?

856


what is the calibration procedure for magnetic flow meter @ onsite

742


in mass flow meter what is drive friquancy ?

1169






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

1224


the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

1087


what is difference between HOT permit and cold permit

1046


How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

677


Please asked me How calculate DCS controller memory.

1895


wich is coming the first HAZOP OR SIL

1850


what is the difference between magnetic flow meter and mass flowmeter

482


what about your moleg in pogrees with company

1226


What is the purpose of LO Overhead tank in turbines.

1124


Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

1115