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Answer Posted / madeena
Digital Control System
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Why thermo wells are used? What materials are used in thermo wells?
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),
Why mixer nd grinder Is example of constant torque load not variable torque load ???
What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.
Which tank weighing system is better to install (Accuracy point of view) 1) Tank weighing system with 3 load cell or 2) Tank weighing system with 4 Load cell
Questions on flow meters,few questions on HART protocol,
steps for installing orifice plate?
why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.
Draw a complete P&ID of a flow suction tank indicating all control & protection equipment. Indicate all its inlets and outlets. Explain the controls for this system
How we calculate orifice plat size???
how to design orifice plate?what is the equation?
What is super thermocoupal?
how can leve transmetter calibate in feild .and also put cv and flow plz .....
In which principles tx ,pressure gauge,Temp gauge,control valve works?
hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???
