#Question id: 14868
#Section 1: Engineering Mathematics
#Question id: 14231
#Section 5: Bioprocess Engineering and Process Biotechnology
In current service, 20 kg s^-1 cooling water at 12⁰C must be circulated through a coil inside a fermenter to maintain the temperature at 37⁰C The coil is 150 m long with pipe diameter 12 cm; the exit water temperature is 28⁰C After the inner and outer surfaces of the coil are cleaned it is found that only 13 kg s^-1 cooling water is required to control the fermentation temperature. Calculate the overall heat-transfer coefficient before cleaning. What fraction of the total resistance to heat transfer before cleaning was due to fouling deposits?____________
#Question id: 12911
#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
#Question id: 19915
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 3314
#Section 3: Genetics, Cellular and Molecular Biology
The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 14 gm to 16 gm. Which of the following natural selection operate on this species?