Instrumentation Interview Questions
Questions Answers Views Company eMail

How I identify to solonied coil which is 24v or 230v In our lab.because there is no tag.

MRPL Mangalore Refinery and Petrochemicals Limited,

1 10543

Can 2 transmitters be connected to Integral orifice meter taps? Does an integral orifice comes with 2 set of taps?

1 6521

What is the compensation of thermocouple

Samsung,

2 13072

Close loop and open loop diagram for instrumentation

Petron ltd,

1 5970

how to convert digital signal to analog signal in plc

UltraTech,

1 7469

Tyes of interface level measurement and how to use that technique for interface level measurement,

2148

why pressure 3-15psi is used as industrial standard and what is the reason

JAL International, UltraTech,

2 13311

what is the difference in Kg/cm2 and mmwc?

Niko,

2 7963

How we are blocking 40 kg or more pressure through only 6 kg instrument air in control valve 

3 8988

What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows   very argent : my mai is merajalam143545@yahoo.com

Samsung,

2024

How to calibrate radar lt type transmitter

NTPC,

1 6456

What is the live zero and dead zero

Samsung,

2 7274

Why rtd  out put is ohm how create the ohm 

Samsung,

1 5238

What is the difference between ff transmitter and non ff transmitter

Samsung,

1972

What is the diffrence between ff tx and non ff tx

Jindal, Rosemount,

2449


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Why we are using reverse action in displacer types level transmitters on some Vessels?

2025


IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

1936


What is solenoid valve? Where it is used?

601


find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s

1453


send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com

1735






why fuse block is not used for AI signal?

1391


what effects a surging can produce in the compressor

1465


why we are using drum level control valve air to close?

1594


In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

1890


send me HPCL paper

8320


how many types of viberation transmitter and how to calibrate and where use of vibration transmitter

1683


what is the imbustion control loop

1428


Exothermic reaction./ endothermic reaction

1525


How an rtd work, and what volts/current goes to a rtd to measure the resistance?

724


What are the uses of orifice plates?

612