Answer / ramana reddy

please send hpcl officer trainee - chemical engineering
previous question papers . my mail id :
ramana_ochem@yahoo.com

Answer / man singh

pls send me HPCL & reliance test paper for chemical
engineering.....

Answer / sib das

Pls send me hpcl previous years all chemical engineering papers

Answer / ritesh

ok

Explain how can one estimate how the friction factor changes in heat exchanger tubes with a change in temperature?

0 Answers  

---

What are the types of load?

0 Answers  

---

For a heat exchanger, will the overall heat transfer coefficient increase along with an increase in lmtd (log mean temperature difference) around the unit?

0 Answers  

---

In a Furnace arch pressure is more than Hearth pressure,then how flue gas travels to stack

0 Answers  

---

Are there any methods of preventing cracking of carbon steel welds in refining environments?

0 Answers  

---

If sum one has HAL placement paper plz mail me ,I m Chemical Engg.my id is er.kotnala@gmail.com

0 Answers   HAL,

---

Question 62 – The names of the flow streams could be represented by : H1 for first hot stream, H2 for second hot stream, C1 for first cold stream, C2 for second cold stream. Data of supply temperature Ts in degree Celsius : 150 for H1, 170 for H2, 30 for C1, 30 for C2. Data of target temperature Tt in degree Celsius : 50 for H1, 169 for H2, 150 for C1, 40 for C2. Data of heat capacity Cp in kW / degree Celsius : 3 for H1, 360 for H2, 3 for C1, 30 for C2. (a) Find the enthalpy changes, dH for all streams of flow H1, H2, C1 and C2 in the unit of kW. Take note of the formula dH = (Cp) (Tt - Ts). (b) Match the hot streams H1 and H2 with the suitable cold streams C1 and C2 to achieve the maximum energy efficiency.

1 Answers  

---

QUANTUM COMPUTING - EXAMPLE 32.3 : A system of linear congruences consists of 3 equations : X ≡ 1 (mod 3), X ≡ 3 (mod 5), X ≡ 4 (mod 6). X has positive values. (a) List the values of these equations from 1 to 35. Then find the minimum value of X. (b)(i) Find the least common multiple (LCM) of b = 3, 5 and 6 where X ≡ a (mod b). (ii) If b - a has the same value of all equations above, then X + (b - a) is divisible by LCM. Find the value of minimum value of X via LCM division.

1 Answers  

---

How can viscosity affect the design of a mixer?

0 Answers  

---

Question 27 – By using Excel or other easiest programming package, explain how I, the integral of sin x dx from 0 to 3.142 could be approximated using random number. Find the exact value of I.

1 Answers  

---

Question 84 - In Mendelian genetics, yellow (Y) is dominant to green (y) and round (R) is dominant to wrinkled (r). (a) What is the probability P of Rr x Rr producing wrinkled seeds? (b) What is the probability P of Yy x yy producing green seeds? (c) What is the probability that RRYy x RrYy would produce RrYy?

1 Answers  

---

What is vapour flooding and liquid floodin in distillation?

0 Answers   Deepak Fertilisers,

---