Answer / subhendu amitav

It's a petroleum refinery process,in which the heavy oil is allowed to pass through metal chambers under pressure and high temperature where the catalyst are present such as silica , alumina or zerolite.at the end of the process the heavy long chained oil molecules breaks into light , simple and short chain molecules with higher octane number

What is NPSH of a Centrifugal pump ? How is it varied by the pump manufacturer for a particular model of pump ?

3 Answers  

---

Hindustan petroleum placement papers.please send me.

2 Answers   HPCL, HSBC, NTPC, Satyam,

---

• Why not 4 phase & 5 phase

0 Answers   NTPC,

---

what is the full form of LVDT

4 Answers  

---

what is entropy acc to new concept?//

1 Answers   L&T, MAHINDRA,

---

---

How to decide the thickness of sheet metal while designing the bracket?

0 Answers   TATA,

---

How to measure sound level of engine of tractor?

1 Answers  

---

what is the difference between transformer welding machine and rectifier welding machine?

2 Answers  

---

what is the main purpose of reheater in a coal fired boiler

3 Answers   L&T,

---

CATIA:VARIATON IN SIZE AND PATTEREN

0 Answers   TATA,

---

How much is the specific fuel consumption of an average diesel engine?

1 Answers   RRB,

---

What is vane diagram in centrifugal pump?

0 Answers   Tata Steel Limited,

---