Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...

0 Answers   Adgas, GAIL, Oil India, ONGC,

---

how many types of viberation transmitter and how to calibrate and where use of vibration transmitter

0 Answers   Sabic,

---

what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

0 Answers  

---

diff c and c++

1 Answers  

---

loop chech tools list

1 Answers   BAP,

---

if my 6 kva UPS gives 20 min. backup at 100 % load, then at 25% load what is the backup time?

17 Answers  

---

There are many type of control cable like pair,core,tried, What are defination each one

0 Answers   Birla,

---

what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar

1 Answers   Birla,

---

How we are deciding while programming in pid controller , What we are using heating or cooling.

1 Answers  

---

What is the cascade control

0 Answers  

---

compare the thermocouple and pyrometer,which one is the best?why?

4 Answers   Ramco,

---

which is the best type to measure level of a Tank(water). Displacer or Differential Pressure method?

2 Answers  

---