ENGINEERING MATERIAL - EXAMPLE 12.1 : In crystal material, hexagonal crystal system could form 4-digit index in certain direction of solid. For [1(-1)0] direction in the hexagonal crystal systems of particular catalyst applied in fume removal of incinerator, what is the four-digit index for this direction? Hint : The transformation equations between the 3-digit [h'k'l'] and the 4-digit [hkil] indices are : h = (1/3) (2h'-k'); i = - (h + k); k = (1/3) (2k'-h'); l = l' A. [(-1)100] B. [1(-1)00] C. [(-1)000] D. [00(-1)(-1)] E. [(-1)0(-1)0]

1 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,

---

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

0 Answers  

---

What is a common source of error in determining the percent spent caustic in refinery applications?

0 Answers  

---

testing formula for oxygen by ammonium chloride,ammonium hydroxide and copper

0 Answers  

---

---

Explain what are some common precipitating agents used to remove metals from aqueous waste streams?

0 Answers  

---

Hi. I have completed my masters in chemical engineering from M S University in year 2008 and now going to do MS Chemical engineering in Lamar University. I am planning to appear for interview in two weeks from now. What are the expected questions from VO regarding masters after masters ? and wat should i expect to give reply ? kindly give your suggestions. Thanks

0 Answers  

---

DIFFERENTIAL EQUATIONS - EXAMPLE 20.3 : A differential equation is given as y” + 5y’ + 6y = 0, y(0) = 2 and y’(0) = 3. By using Laplace transform, an engineer has correctly produced the equation L {y} = (2s + 13) / [(s + 2)(s + 3)] = A / (s + 2) + B (s + 3). (a) Find the values of A and B. (b) The inversed Laplace transform of 1 / (s + a) is given by exp (-at) where a is a constant. If the statement : L {y} = 9 L { exp (-2t) } - 7 L { exp (-3t) } is correct, find the equation of y as a function of t as a solution to the differential equation stated in the beginning of this question. When L {d} = 9 L {b} - 7 L {c}, then d = 9b - 7c with b, c and d are unknowns.

1 Answers  

---

Are there flow velocity restrictions to avoid static charge build up in pipelines?

0 Answers  

---

For a centrifugal pump if the pump is running and we close the discharge valve what is the effect

11 Answers   Asian Paints, NFTDC, Reliance,

---

can any one tell me that how shoul i prepere for entrance exams of psu i mean from which book i have to gone through?

3 Answers   BPCL Bharat Petroleum, GACL, GATE, IOCL,

---

Explain what are the affinity laws associated with dynamics pumps?

0 Answers  

---