Sterilization Questions

• The relationship between the del factor, temperature and time is given as
• The specific death rate of an organism can be expressed as
• The radius of the filter with a depth of 14 cm required for a volumetric airflow rate of 10 m3/min is approximately
• The collection efficiency by interception increases with the
• The heated medium passes through a holding section, which is usually maintained in
• The collection efficiency by the inertial impaction mechanism is the function of
• The moist heat is more effective than the dry heat because the intrinsic heat resistance of vegetative cells is greatly
• The value of K
• The collection efficiency by impaction increases with
• The efficiency of fibrous filter by combined mechanism is given by(where ηimp,ηint,ηdif are the efficiencies by impaction, interception and diffusion respectively)
• The heat conduction in dry air is
• The destruction of microorganisms by steam may be described as
• For laminar flow of Newtonian fluid through a smooth round pipe, the ratio of average fluid velocity to the maximum velocity is
• Sterilization can be carried out by
• The highest temperature which appears to be feasible for batch sterilization is
• The X90 value for a filtration system is
• In sterilization process, spore of which of the following organism is considered as control?
• The collection efficiency by diffusion increases with
• Model proposed by the Friedlander, correlating the air filtration efficiency by impaction can be expressed as (where NSt is the Stokes number)
• The K used in the equation for X10=2.303/K depends upon