Why flow/pressure transmitter before control valve?

1512

WHAT ARE THE INSTRUMENTAL DIAGRAMSOF VALVES?

2079

how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

2302

There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

1904

Explain PID controller tuning & any one method used for it.

7697

What is the difference between PLC and DDC?

2108

I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?

2029

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?

2520

What is three element in drum level?

1348

principle of automatic votage regulator

2086

What is the principle of capacitance type level transmitter?

1017

Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .

2442

what are the values of fuel flow rate in various places in boiler.

1655

Define cryogenic?

1082

How to calculate P,I&D value in PID controller ?

2080