Explain what are flameless oxidizers?

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Explain the some guidelines for sizing a psv for a fire scenario on a vessel in a refinery service?

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What chemical is used to expand air bags in such a short amount of time?

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What does the catalytic converter on an automobile really do?

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Are there any special considerations to be taken into account for combustion ammonia?

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What does capacitor load means? How does it connect?

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what is the cast iron grade of composition of c-3.06% , Mn- 0.48% , Si-2.38% , S-0.088% , P-0.092% , Cr-0.12% , Ni- 0.012% , Mo-0.00%

0 Answers   L&T,

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HOW WOULD YOU CALIBRATE A ROTAMETER

2 Answers   IOCL,

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Explain the method of determining maximum differential pressure during hydro testing of shell and tube heat exchangers?

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hello everyone do anyone have interview questions for any chemical industry please email me at

0 Answers   ONGC,

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PLZ ANYONE SEND ME PLACEMENT PAPERS OF I.O.C.L MY ID---- gaurav.nitw.5609@gmailcom

0 Answers   IOCL,

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MICROBIOLOGICAL ENGINEERING - QUESTION 28.3 : In the calculation of the growth of bacteria, absorbance, A in spectrophotometry is used. According to Beer-Lambert Law, A = e x l x c where A is the absorbance of the solution (no unit), l is the distance of light travels through the solution (in cm), e is the molar absorptivity or the molar extinction coefficient [ in L / (mol.cm) ]. For a particular solute and fixed path length : As / Ao = Cs / Co where Ao is the observed signal for a known concentration Co, and As is the observed signal for a sample concentration Cs. (a) For a cell concentration of 560 cells / mL, a spectrophotometre gives an absorbance reading of 1.0. A mixture of concentration 3600000 cells / mL can be diluted in several operations, with each operation having a dilution of 1:20. How many dilutions should be made so that the concentration of this mixture can be calculated within a range of A = 0.0 to 1.0. (b) In another experiment, a sample tube of 1 cm in width is used. Let A = 0.06 and e = 0.0012 ml / (cell.cm). Find the cell concentration of the sample.

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