Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC,

2 4514

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

Thermax,

3 5397

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

APPSC,

3 19667




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

4 3112

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

Reliance,

3 5482

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

GAIL, Olympia,

1879

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

HPCL, Chettinad,

1 3821

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,

5 9513




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

Honeywell,

6 19834

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 2133

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

897

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 2129

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

598

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 3334

what will the sending unit in the fuel gauge utilizes?

493


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Un-Answered Questions { Instrumentation }

State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.

507


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

4574


how can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?

641


what is RTV function in in process control?

1145


Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

242


why we take %i0.0 as input for twido plc

324


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

270


who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.

2336


why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V

912


What is stripper & spilitter ? Diffrence in this.?

1473


what is exact time to study dcs and plc cources

495


In my plant I want to mount a steam flow transmitter .Flow nozzel is already mounted in steam line .So how can i know the range to put in flow transmitter?

293


plz tell me clearly about PID.."when v have to change I value,D value,GAIN??

534


we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

1271


send me last 5 years questions asked in rrb chennai, for section engineer

638