can u briefly explain aboutan aryton shunt multirange DC
what is instrument philosophy
In control valve there are two type of valve seat we can use
metal to metal seat & soft seat.On this valve seat i have
1)I have never seen practically the internal assembly of
valve so my doubt is that basically weather the seat is soft
seat or metal its basic MOC is same as valve body(SS or CS)
only in soft seat we are using PTFE ring & place on valve
seat & in metal this PTFE ring is not threr am i correct???????
2)what are the common general rule for using metal to metal
seat & soft seat,means its depend on process parameter like
liquid,gas, steam & on valve leakage class.
What are the type of bonnets in the control valves?
what is moisture probe? What are there types? What is there
working principle and how they works?
guys this is one of technical question I had ask in
If you know its answer please let me know. The interviewers
were more interested in microwave moisture probe, so if you
find its any link please just forward me on my mail
Thanks in advance.
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