Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC, Polmon, Aramco,

5 12051

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

Thermax, Saint Gobain, Reliance,

3 9075

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

APPSC,

3 31691




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

4 5663

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

Reliance,

4 10151

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

GAIL, Olympia,

2366

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

HPCL, Chettinad,

2 7052

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 14702




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

Honeywell,

6 32995

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 3550

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

1530

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 3587

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

1008

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 5236

what will the sending unit in the fuel gauge utilizes?

845


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Un-Answered Questions { Instrumentation }

define feed forward control loop with example and drawing?

2109


what is dc moter.

1138


What is the cascade control

281


hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com

958


Conversions

1025






Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.

961


What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

1969


diff between neutral ,ground,phase , earthing and shielding?

1262


which type of filter gives the constant phase characteristics?

1000


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?

879


what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .

3751


If fire would be inside the plant which fire detector is to detected the fire.

509


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

1059


what is function of switch, and how is it work, explain with difination

984


can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

988