Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC, Polmon, Aramco,

5 11658

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

Thermax, Saint Gobain, Reliance,

3 8946

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

APPSC,

3 31409




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

4 5549

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

Reliance,

4 9955

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

GAIL, Olympia,

2333

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

HPCL, Chettinad,

2 6914

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 14474




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

Honeywell,

6 32426

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 3486

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

1500

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 3525

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

974

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 5147

what will the sending unit in the fuel gauge utilizes?

819


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Un-Answered Questions { Instrumentation }

what is type of protocol used in instrument field to marshalling cabinet cabel. what is the differenance between bus cabel and instrument cabel?

2679


how is work pressure switch& level switch?what is the principle of this?

1422


The company where I am working, their is rosemount 5400 series radar type level transmitter, it is meant to show level of filled tank, but along with the level it is showing temperature also, so my question is how a onon-contact type radar type level transmitter can show temperature even if it does not have any contact with the fluid?

1009


How RAL(Rotary air lock)works in cement industry?

1180


Explain an adaptive / self-tuning controller’s major draw card.

1223






Somebody can explain me about >Critical Loops, calibrations, ESD critical Loop checks, Logic Diagram / Cause & Effect checks for ESD loops,

588


How we connect a instrument with ground, Give brief explanation with help of diagram?

1017


Programmable Logic control.

820


Emergency Shutdown Systems/ Plant Shutdown System.

959


Which types of quections asked in interview for FORMULATION PLANT (PHARMA)

5571


please send data bank of quetions answers on analytical instrumentation.

852


A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

241


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

2333


Exothermic reaction./ endothermic reaction

801


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

974