Answer / ranjeet

go through O.P GUPTA OBJECTIVE and make ur basics strong

Answer / somsubhra bera

to clear the written test of PSU exam must read the
objective books of 1. O.P Gupta
2. Ramprasad

Answer / rahaman

due to thermal cracking large amounts of coke is formed which poisions the catalyst,so steam is added to reduce coke formation, what steam does is that it oxidise carbon to co or co2

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.

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is extractive distillationӞH

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How many grams per liter would there be in a 0.35 n (normality) citric acid solution?

1 Answers  

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Why is post-weld heat treatment (stress relieving) sometimes necessary for welded vessels?

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Explain some of the consequences of an undersized kettle type reboiler?

1 Answers  

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i want sample inteview question of chemical engg for BARC

1 Answers   BARC,

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Dear sir/madam I am in final year BE chemical engineering.Which companies i can apply .Please guide me.It is very helpful for me

1 Answers   TCS,

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What factors go into designing the vapor space of kettle type reboiler?

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What is a black body?

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For cement company what type of questions come in written exam?

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ENGINEERING NUMERICAL METHODS - EXAMPLE 19.2 : For a mixture of benzene (B), toluene (T) and xylene (X), the equation applies where x for B, T and X will sum up to 1. The equation of x for each component is x = (L / V + 1) (F) / (L / V + K). The data of F for each component are : 0.5 for B, 0.35 for T, 0.15 for X. The data of K for each component are : 1.98 for B, 0.76 for T, 0.24 for X. When x for B + x for T + x for X = 1, find the values of (a) L / V; (b) x for each component of B, T, X respectively. You may use Excel program - Data : What-If-Analysis for Goal Seek to perform the iterative calculations.

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How to estimate the efficiency of a pump?

2 Answers   OGDCL,

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