Answer / kang chuen tat (malaysia - pen

Answer 64 – (a) dP = (4 psi / 10 ft) x 60 ft = 24 psi. (b) dP = 9 + 10 = 19 psi minimum. (c) P of pump = 8 + 50 = 58 psi. (d) dP for pipe = Answer of (c) - Answer of (a) - Answer of (b) = 58 - 24 - 19 = 15 psi. Maximum length of pipe = (100 ft / 2 psi) x 15 psi = 750 feet. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Question 40 - A stream with volumetric flow rate Q enters a cylindrical tank and a stream with volumetric flow rate q exits the tank. The fluid has a constant heat capacity and density. There is no temperature change or chemical reaction occurring in the tank. Develop a model for determining the height of the tank, h. Let V is the volume, A is the cross sectional area, r is the density, m is the mass, where V and A are for the tank, r and m are for the fluid. The rate of mass of fluid accumulation, dm / dt = (Q - q) r. Prove the model to be dh / dt = (Q - q) / A.

1 Answers  

---

I want previous year question paper of ONGC for chemical engg.

0 Answers  

---

what is cv value in valves

3 Answers   IFFCO,

---

BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.3 : In thin layer chromatography (TLC), let retention factor Rf = (distance traveled by solute) / (distance traveled by solvent). Silica gel is used as stationary phase which is more polar than the hexane solvent as mobile phase. If the Rf values of 3 solutes A, B and C are 1.5, 0.75 and 1 respectively, compare the polarities of A, B and C with reasons.

1 Answers  

---

The power required for size reduction in crushing is???

2 Answers  

---

---

what is the relation between velocity & pressure. tel me if pressure in water line is increased what wil b effect on velocity ?

5 Answers  

---

How to caliculate the boil up rate, dia and height in both packed and tray distillation columns and any referance books for the design.

0 Answers  

---

What is the ignition temp. of Aluminum,Coper&Iron.

0 Answers  

---

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.10 : Let D be the random outcome of rolling a dice once. A new dice has values of D* = D - 3.5. There is a total of n rolls of a dice. (a) Find the variance for D* by using the formula 6 V = [ D* (D = 1) ] [ D* (D = 1) ] + [ D* (D = 2) ] [ D* (D = 2) ] + [ D* (D = 3) ] [ D* (D = 3) ] + [ D* (D = 4) ] [ D* (D = 4) ] + [ D* (D = 5) ] [ D* (D = 5) ] + [ D* (D = 6) ] [ D* (D = 6) ]. (b) Calculate the standard deviation of D* as a square root of V. (c) Another new dice has values of D** = kD*. (i) Find the value of k so that D** has a standard deviation of 1. (ii) Find the values of D** for each outcome of D = 1, 2, 3, 4, 5 and 6, when the standard deviation is 1. (iii) Given that the average score of a dice is 3.5, find the equivalent, new and improved model of a dice, Sn in term of n and D**. (iv) Find the expected value of D** as the average of D**.

1 Answers  

---

how to decide reflux ratio & its calculation

1 Answers  

---

What is chemicals?

1 Answers   Thirumalai Chemicals,

---

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.23 : An engineering company would like to produce 10000 units of control instruments. Let selling price per unit = $10, variable cost per unit = $2, overall fixed cost = $30000. (a) Calculate the income obtained when all units are sold out successfully. (b) Find the overall cost of production. (c) Calculate the percentage of gross profit obtained based on the answers in (a) and (b). (d) Find the minimum units that need to be sold out successfully in order to prevent losses. (e) How many minimum units of instruments that need to be produced in order to prevent losses, if all units produced are sold out successfully?

1 Answers  

---