Answer Posted / instru
Bigger size actuator are required whenever thrust required
for control valve is higher. Thrust required is higher
whenver control valve has to open against high differntial
pressure. Also whenver type of packing is Graphite , large
size actuators are required because packing friction is
higher compared to PTFE.
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon
use of split range ? where it is used ? in which control loop it is used ?
What is defferent betwen ESP &PCP PUMP .HOW IT IS WORK?
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
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
what is gas metering system? gas chromatograph? and gas compressors?
Explain about safety integrated level protection? . How it was differ from other protections ?
how pressurize drum calibrated ?
what are the use of belew gear in general ??
Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.
What is megering????
Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.
What is offset in a control system.
How to calibrate smoke Dectector
please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...
