Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC, Polmon,

5 9135

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

Thermax, Saint Gobain, Reliance,

3 7576

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

APPSC,

3 28257




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

4 4621

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

Reliance,

4 8415

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

GAIL, Olympia,

2165

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

HPCL, Chettinad,

2 5815

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 12767




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

Honeywell,

6 28957

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 2970

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

1297

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 2924

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

824

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 4401

what will the sending unit in the fuel gauge utilizes?

652


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Un-Answered Questions { Instrumentation }

hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

870


what is the analog input , analog output , digital output, digital input geven to the MSSV , CBD, IBD , START UP VENT , BOILER FEED PUMP , AOP, CEP , ETC

1578


CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?

641


how to calibrate Necleuonic level transmitter.?

795


How to calibration coriolis flow meter?

417






Explain about the leakage class of the control valves

777


Give Detail information about plc,dcs,and scada system?

443


HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?

1871


What is three element in drum level?

7


Specify for Cables - Flame Retardant and Fire Resistant?

785


i need some objective type questions in instrumentation

3516


Draw block digram for well head from well to shipping pump?

966


what is sliding spool valves?

974


Why do we have earthing cable in branch cable and shield in the same cable?

1318


what is the vital subject for scoring bhel exam&what is the question pattern

1073