what is diffrance between FF & SMART, explain with difination

0 Answers   Bapco Bahrain Petroleum Company,

---

what is the field bus calble ? what are diffrences in orang colur cable and black coular calble ?

0 Answers   ABB, Yokogawa,

---

How to check vortex flow meter is in good condition while we do not having calibration setup?

4 Answers  

---

what is the function of 3 way manifold valve in a closed loop system?

1 Answers   Emerson,

---

Can anyone provide me the details of GAIL test paper?What is the format and what type of questions will be there? my id-princegnb@gmail.com

1 Answers   GAIL,

---

Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

0 Answers   IGL, Punj Lloyd Ltd, Shapoorji Pallonji Group(SPCL),

---

What is the purpose of valve positioner. Explain 4 uses.

2 Answers   SRACO,

---

if field commnictor 475 does not communicate with transmitter what will you do ?

4 Answers   Samsung,

---

WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

23 Answers   Exxon Mobil, Honeywell,

---

when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

1 Answers  

---

what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

---

Explain the difference between differial pressure & delta pressure?

1 Answers  

---