Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mohamed rafik
The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators. Positioners are used to control the opening or closing of the actuator based on electric, or pneumatic signals.
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
What are different type of instrument cable
Name different parts of a pressure gauge.
whatis range of marcury filled tempereture gague
1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?
For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.
tell me the field & lab calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter, temperature transmitter, temperature indicator, flow indicator, level indicator, control valve, thermocouple, pressure indicator (digital & analogue),
How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.
How to calibrate the flow transmitter
How it the difference between force balance system and dispalacement balance system?
in differential pressure transmitter,min&max pressure range for hp&lp
If we increase only P what will be controller action ?
Why do we have earthing cable in branch cable and shield in the same cable?
why we are not using the turbine flow meter in the steam service?
why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V
