Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC, Polmon, Aramco,

5 12562

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

Thermax, Saint Gobain, Reliance,

3 9336

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

APPSC,

3 32038




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

4 5832

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

Reliance,

4 10495

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

GAIL, Olympia,

2410

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

HPCL, Chettinad,

2 7257

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 15092




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

Honeywell,

6 33853

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 3645

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

1569

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 3701

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

1059

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 5395

what will the sending unit in the fuel gauge utilizes?

874


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Un-Answered Questions { Instrumentation }

Can Any body tell me about the Contact or Email id of any good Consultancy which help me to find a job in Instrumentation Field in India .I have Six years of Work Experience in the Same field.Please revert me back on shammi_gwalior@yahoo.com ?

839


what is the reset offset and control system in instrumentation

2559


on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon

1115


how to turbine speed measurement?

581


why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.

1409






Explain why plc require in analog input 4-20amp & 0-10 volt?

19


What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

1073


we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?

1511


principle of dead weight tester ?

892


With N nodes and B branches what will have a network ???

945


how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

876


1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

1525


what is interlock system and why we use of this?

879


How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

1005


What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?

47