26. The reduction of number of cells from 10¹⁰ to one will result into the del factor (Δ) of

A. 1
B. 10
C. 23
D. 10³

27. Sterilization can be carried out by

A. heat
B. radiation
C. chemical agents
D. all of these

28. The collection efficiency by the inertial impaction mechanism is the function of

A. Stokes and Reynolds number
B. Stokes and Schmidt number
C. Grashoff and Reynolds number
D. Stokes and Grashof number

29. The heated medium passes through a holding section, which is usually maintained in

A. adiabatic conditions
B. isothermal conditions
C. isotropic conditions
D. isobaric conditions

30. The highest temperature which appears to be feasible for batch sterilization is

A. 121°C
B. 100°C
C. 105°C
D. 130°C