Answer Posted / jpr.keeranur

mv*25=temp

What is the constant voltage unit?

1134

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what is interlock system and why we use of this?

2096

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If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?

2165

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any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

2543

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how can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?

2274

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1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling

2467

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How oil line flow measured?eplain about instruments used and working principle?

2102

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if my flow is 20000 m3/h than which range of DPT i have to use????

1874

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Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

2172

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1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2853

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please send me the inteview questions in IOCL

2290

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Specific gravity.

1934

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this site is owned by an nonsense

2376

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How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

2644

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draw shematic diagram of c/v positioner(smart type)?

2266

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