Answer / s.karthik

We can keep cement bag upto infinite time only thing is
that the store place must be free of moisture.

Answer / nilesh mehta

When cement powder comes into contact with water or
moisture it will be crosslinked because of chemical
reaction takes place.So if we want to store cement bags
long time, this must be kept away from moisture or water.

Answer / ramadan

I think that we can sotore the cement @ the good conditon
more than 6 months in API condition

Answer / sriram

upto 6 mounts

Need to design filter...Length and diamter of shell

1 Answers  

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an anybody provide me the HPCL apptitude papers?am having the test on this feb 27th 2008 so plz [Send This Question to Your Friend] please send me hpcl placement papers both technical and apptitude.. please

3 Answers   HPCL, NTPC,

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A distillation column separates 10000 kg / hr of a mixture containing equal mass of benzene and toluene. The product D recovered from the condenser at the top of the column contains 95 % benzene, and the bottom W from the column contains 96 % toluene. The vapor V entering the condenser from the top of the column is 8000 kg / hr. A portion of the product from the condenser is returned to the column as reflux R, and the rest is withdrawn as the final product D. Assume that V, R, and D are identical in composition since V is condensed completely. Find the ratio of the amount refluxed R to the product withdrawn D. Hint : Solve the simultaneous equations as follow in order to find the answer (R / D) : 10000 = D + W; 10000 (0.5) = D (0.95) + W (0.04); 8000 = R + D.

2 Answers  

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What are the affinity laws associated with dynamics pumps?

1 Answers   HPCL,

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We are having proplem with the persperation smell in ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is not conditioning the environment. We have to use exhaust fan to through out of the room bad air. Could anyone suggest how to coup with this effectively using chemical engineering. Any permanent solution to neutralise the bad smell.The Air freshners are not doing enough instead making a bad odour.

0 Answers  

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which type of packing gives large interfacial area stacked or random?

2 Answers   NPCIL,

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Define pneumatic conveying?

0 Answers  

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What are the specialized crushing methods?

0 Answers  

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.17 : In the engineering calculations of interest rate caused by inflation, General Inflation Effect and Fisher Effect may be considered. Let I = inflation rate, R = nominal interest rate, r = real interest rate. According to Fisher Effect, (1 + R) = (1 + r) (1 + I). According to General Inflation Effect, r = R - I. (a) If I = 0.1 for all effects, both the values of R and r in the Fisher Effect are the same as R and r in the General Inflation Effect, find the values of R and r. (b) If R has the same value caused by both General Inflation Effect and Fisher Effect, find the possible values of R, r and I in term of R etc.

1 Answers  

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What is the Chemical Formula of Mineral Oil used in Transformer. It is Challenged for all Chemical Engineers.

6 Answers   Ambuja, Oil and Gas Jobs,

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Is there any way to remove residual product left in pipes after a batch operation?

0 Answers  

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QUANTUM BIOLOGY - EXAMPLE 33.6 : The time to maintain quantum coherence in a biological system is t. Let t = k / (MT) where k = constant, M = mass, T = temperature. For living farm animals, normal rectal temperatures ranges for pig and goat are 38.7 - 39.8 and 38.5 - 39.7 in degree Celsius respectively. Let a pig has a mass of 100 kg and a goat has a mass of 300 pounds. (a) Find the mass of goat in the unit of kilogram, when 1 pound = 0.4536 kg. (b) Find t (p) / t (g) for living animals when t (p) = t for pig and t (g) = t for goat. (c) State the assumption of your calculation in question (b).

1 Answers  

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