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Instrumentation Interview Questions
Questions Answers Views Company eMail

how many types of elements are there?

1 3545

why we use -ve voltage in vibration monitoring system.generally we use 4 to 20 mA as output of instrument then why we use voltage in vibration

2 8114

what is bms?

Emco,

4 6298

I have a LT of 10000mmwc range. can i use this LT in 1000mmwc range of tank?? if yes than what happened???

Nirma,

3 6103

what is the deluge ? How can its working?

KOC,

2 6181

what is the difference between plant earth and instrument earth? and what type of cable( cable size ) used for both? and why ?

2693

please explain about actuator action? direct action & return action ?

1 3630

draw a loop drawing of vibration beginning to end

1 3661

what is proportional & what is proportional band

Nimir,

1 2137

I want condensate pots vent position erection of flow transmitter ?

1 3159

WHAT IS D/O D/I AND A/O A/I PLZ EXPLAIN

2 4538

what is instrument termination

1 2375

what is intrument termination what is commisioning

3 7271

what is solenoid valve?

1 5024

Whatis the reset ofset and control system in instrumentation

Asyad International Company, CAE, Sugar Factory,

1412


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

1408


how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr

7135


Which type of diagphram use in costic line,DM water line,natural gas line,oil line?

3303


In Safe Guarding test what means by "Failed to Danger" ?

1452


what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.

1316






Galvanizing.

1287


In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1315


What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus

5082


Pressure tx shows 1 mbar but we need 1000 mbar at this process condition .. how can we sort it out .

1011


Valve positioner and actuators in detail.

1214


What is hp & mp seperator .& what is its working principle ?

1837


What is difference between differential pressure & delta pressure?

465


What is difference between radial vibration and axial vibration explain in detail .

933


line up procedure for dp type flow transmitter?

1150


1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

1049