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HOW WOULD YOU CALIBRATE A ROTAMETER

1 Answers   IOCL,

How can separation of chiral chemicals affect the chemical and/or pharmaceutical industries?

0 Answers  

What are the assumptions made on conservation equation?

0 Answers  

what are the reaction between sodium meta bi sulphate and chlorine?

1 Answers   Dalkia,

Explain the largest application for surfactants?

0 Answers  

What are the methods involved to test helium leak testing in a vacuum system?

0 Answers  

MICROBIOLOGICAL ENGINEERING - QUESTION 28.1 : In the calculation of the growth of bacteria, colony forming unit (CFU) in serial dilution is used. In a laboratory, viable count assay is used to estimate CFU. Formula applied is CFU / mL = (number of colonies x dilution) / (amount plated, in unit mL). Acceptable plate count is either between 20 and 200 or between 30 and 300 according to 2 different references. A wastewater sample of 200 ml is added to and mixed with 1.8 L of sterile water. Another 200 ml of the mixture is added to and mixed with 1.8 L of sterile water. (a) Calculate the dilution of first mixture and the dilution of the second mixture. (b) 100 microlitres of wastewater samples from the first mixture and the second mixture are placed separately on 2 different alga plates. The first plate has 250 colonies and the second plate has 23 colonies. Calculate the average CFU / mL.

1 Answers  

In a screw compressor air is sucked from atm and mixes with the oil and is separated using separators.Will the viscosity of the oil get affected as moisture in air gets mixed with oil?

1 Answers  

Should slurry pipes be sloped during horizontal runs?

0 Answers  

Why reflux is necessary in distillation column?

1 Answers   Deepak Fertilisers,

What is the maximum steam pressure that can be generated?

0 Answers   CPCL,

What are the uses of quicklime?

0 Answers