Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / m.ra
Yes we can operate a control without a positioner in the
following condiotions.
1) Volume booster is not required.
2) Operation of control valve will be very sluggish.
3) Charecteristics of control valve cannot be changed.
4) If the valve is self regulation than also positioner is
not required.
| Is This Answer Correct ? | 4 Yes | 8 No |
Post New Answer View All Answers
all types of liquid analyzer principle with drawing?
Any body have know try work calculation ???
how to calculate signal cable sizing? and multipair cable sizing??explain in brief?
DEAR SIR/MADAM MY NAME IS ARKAPROVA BHATTACHARYYA.I AM A FRESHER INSTRUMENTATION ENGINEER.CAN YOU PLEASE SEND SOME QUESTION PAPERS OF GRADUATE ENGINEER TRAINEE EXAM OF DVC(DAMODAR VALLY CORPORATION).MY EMAIL IDs ARE arka_aec@rediffmail.com.
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,
How will you test a transistor with a multimeter?
What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?
what is function of switch, and how is it work, explain with difination
Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?
Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?
how to calibrate steam control valve in steam turbine
detail of mass flow meter pricipal
Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?
you are on site,the plant trips,you are approached by operations,what do you do?
