Answer / kangchuentat

ELECTRICAL TECHNOLOGY - ANSWER 16.1 : I = IS [ exp (nVD / VT) - 1 ] = 0.000000000001 [ exp (1.5 x 0.026 / 0.026) - 1 ] = 0.00000000000348 A. 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.

Three solid objects of the same material and of equal mass – a sphere, a cylinder (length = diameter) and a cube – are at 5000C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change of temperature is smallest for a) cube b) cylinder c) sphere d) equal for all the three whyyyyyyy???????

3 Answers   GATE,

---

Question 89 - A hemocytometer is a device that is used for counting cells. In an engineering experiment, 100 microlitres of cell suspension is diluted with 50 microlitres of Trypan blue dye. Only death cells appear blue in color when stained with the dye. There are 57 cells detected in a hemocytometer, where 5.3 % of them appear blue when the chamber of the meter is placed under a microscope. Each square of a chamber can contain 0.0001 mL of liquid. (a) Calculate the number of viable cells. (b) The cells ocupied 5 squares. Calculate the average number of viable cells / square. (c) Calculate the dilution factor of the cell suspension by using the formula : Dilution = final volume / initial volume. (d) Calculate the concentration of viable cells / mL by using the formula : Concentration = (Average number of viable cells / square) x dilution x (square / volume).

1 Answers  

---

What is the maximum permissible Earth to Neutral voltage in an electrical system.

0 Answers  

---

how much type question asking sulfuric acid plat interview. if not maintain acid temp. and conc. what will happen

1 Answers  

---

What is the maximum recommended velocity for steam in a plant pipe network?

0 Answers  

---

ENGINEERING ECONOMY - EXAMPLE 7.2 : In the purchase of a machine with a period n = 8.5 years, the minimum attractive rate of return, i = 12 %, the cost P = $55000, F = $4000 is the salvage, annual maintenance A = $3500. The return of the investment or equivalent uniform annual benefit is $15000. The equivalent uniform annual cost is P (A / P, i, n) + A - F (A / F, i, n). The investment is considered acceptable only when equivalent uniform annual benefit is greater than the equivalent uniform annual cost. From the compound interest table, (A / P, i = 12 %, n = 8 years) = 0.2013, (A / P, i = 12 %, n = 9 years) = 0.1877, (A / F, i = 12 %, n = 8 years) = 0.0813, (A / F, i = 12 %, n = 9 years) = 0.0677. Prove by calculations whether the investment above is acceptable.

1 Answers  

---

Explain what particle sizes are electrostatic precipitators used to remove?

0 Answers  

---

what is density

2 Answers   CPCL, TII,

---

What are some guidelines for designing for liquid and gas velocities in process plant piping?

0 Answers  

---

Suggest the best book for barc written test guide me the syllabus

1 Answers  

---

In DM plant, If pH in anion outlet is 7.2 and Mixed bed pH is 6.2, wat could be the reason.

8 Answers   Cipla, Jindal,

---

hai can anyone send me soft copy of o.p gupta or tell me downloading link please please at saify_0@hotmail.com

0 Answers  

---