Answer Posted / sundara pandian
control valve i/p : 3-15 psi
o/p : 4-20 ma
| Is This Answer Correct ? | 9 Yes | 16 No |
Post New Answer View All Answers
Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?
How will you calibrate PID controller? explain with example.
What is the GK Value in Flowmeter?
How would you choose differential range?
what is the procedure of O2 sensor(ABB) calibration?
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
which processor is used in dcs.
How it the difference between force balance system and dispalacement balance system?
what diffrence b/w plc s7200,300,400
Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com
can we create an interrupt in plc through scada?
What is zener diode? What is voltage regulator?
What is Positive Calibration and Negative Calibration?
sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com
How to Calibrate Flow Switch in field