What is a good estimate for the absolute roughness for epoxy lined carbon steel pipe?

0 Answers  

---

hello sir..iam keen to sit for iocl interview..please forward sample iocl questions to my id: kunal_kv06@yahoo.co.in

0 Answers   IOCL,

---

i need sample question paper of hpcl entrance exam... in chemical engneering category... please mail me to mychitti07@yahoo.co.in

0 Answers  

---

how to find a liquid flow's direction in a closed pipe by merely seeing it(without pressure gauges)...

4 Answers  

---

Explain the difference between cfm (cubic feet per minute) and scfm (standard cubic feet per minute)?

0 Answers  

---

---

POLYMER ENGINEERING - QUESTION 24.3 : The molecular weights M in kg / mol of 3 different monomers a, b and c in a polymer are Ma = 14, Mb = 16 and Mc = 18, with their respective quantities in N units having the ratio of Na : Nb : Nc = 2 : 3 : 5. (a) Find the numerical average molecular weight of the polymer by using the formula (Ma Na + Mb Nb + Mc Nc) / (Na + Nb + Nc). (b) Find the weighted average molecular weight of the polymer by using the formula (Ma Na Ma + Mb Nb Mb + Mc Nc Mc) / (Ma Na + Mb Nb + Mc Nc). (c) Calculate the polydispersity Q by using the answer in (b) divided by answer in (a). (d) Find the volumetric average molecular weight of the polymer by using the formula (Ma Na Ma Ma + Mb Nb Mb Mb + Mc Nc Mc Mc) / (Ma Na Ma + Mb Nb Mb + Mc Nc Mc). (e) Estimate the polydispersity Q by using the answer in (d) divided by answer in (b).

1 Answers  

---

A cylinder having water is being evacuated with constant rate. what is the relation between pressure which is existing in cylinder with time? (P and t relation)

2 Answers  

---

is petroleum a mixture of hydrocarbon?

5 Answers  

---

What is the difference between multi grade filter and dual media filter?

1 Answers   Dalkia, Oil and Gas Jobs,

---

QUANTUM BIOLOGY - EXAMPLE 33.1 : In quantum biology, conditional entropy is given by H (S | O) = H (SO) - H (O). With reference to such equation, find another equation for H (SA).

1 Answers  

---

When an expansion is joint needed on the shell side of a shell and tube heat exchanger?

0 Answers  

---

ENGINEERING MATHEMATICS - EXAMPLE 8.1 : A local utility burns coal having the following composition on a dry basis : Carbon (C) 83.05 %, hydrogen (H) 4.45 %, oxygen (O) 3.36 %, nitrogen (N) 1.08 %, sulfur (S) 0.7 % and ash 7.36 %. Calculate the ash free composition of the coal with reference to C, H, O, N and S.

1 Answers  

---