Answer / vijay krishna

profi bus communication is not suitable for more distance
and will be get affected by emf.signal strength will also
low compared to ofc commn.only thing is less expensive.

how to install Differential pressure transmitter in gas line.i need transmitter down side.

7 Answers   Rockwell,

---

Dear Sir/Madam, I am attending an interview for ETs in BHEL. I have cleared my written test under Electronics (Instrumentation). This is the first time I am appearing for an interview. Can any one who has attended the interview earlier give me a clue to face the interview. With regards Sindhu

2 Answers   Siemens,

---

What is SLPC & MLPC? How it works?

2 Answers  

---

What is CNC

1 Answers  

---

how many parts of valve positioner?

1 Answers   Kentz,

---

If we increase only P what will be controller action ?

0 Answers   IMECO,

---

why relays are used with plc?

4 Answers  

---

I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.

0 Answers  

---

What is the loop calibration? Which instrument used to loop calibration and how?

2 Answers   Descon, QCon,

---

1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

0 Answers  

---

What is difference between Ionization heat and bimetallic heat

0 Answers   KOC,

---

If P will increase then what will happen with PID?

1 Answers   Chettinad, Galfar, Mehran Sugar Mills,

---