Answer / abhijith

vibration transmitter
normally used in
compressor, turbine to
measure the vibration by
adjusting the gap voltage.
we cant control vibration
it shows only vibration
reading.

control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

---

What is Trim?

1 Answers   Gujarat Borosil,

---

for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}

1 Answers   L&T,

---

1.what is beta in control valves? 2.what is the condition followed by light in LASERs? 3.1kg/cm2=?psi 4.Integral action reduces what? 5.about vena contracta 6.a simple RC circuit 7.thermistor material's temp coefficient of resistance 8.if wave passes through the thicker area of a chord to a thinner area what changes will occur to wavelength? 9.if 4-20 mA represents 0-10 kg/cm2 what will be the current when pressure is 5 kg/cm2.................

0 Answers   Lurgi,

---

What is the difference between mmwc and mmwg?

0 Answers  

---

What are the problems faced while testing HART instruments?

1 Answers   SSC,

---

What is purpose of shield wire?

1 Answers   IFFCO,

---

Why do we floating DC in DC system.

0 Answers  

---

Consider a control valve action,the inlet air pressure is only 6 ksc but physically how it can be operate against 100 ksc line fluid pressure?

2 Answers   SCS,

---

How to ensure vibration sensor functioning accordingly.With out using an other sensor.

3 Answers   ACC, Oil India,

---

What is the working principle of sox, nox analyzer?(opacity monitor) Otherwise how to measure the sox,nox?

1 Answers   Thermax,

---

What are three main programming in PLC

5 Answers  

---