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1. The sterilization method depends

A. nature of additive
B. volume and feed rate
C. both (a) and (b)
D. none of these

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2. The specific death rate of an organism can be expressed as

A. ln 2/D
B. D/ln2
C. D.ln2
D. 2.0.3/ln2

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3. The interception efficiency can be expressed as (where d_p is the particle diameter and D_c cylindrical collection diameter)

A. d_p/D_c
B. d_px D_c
C. d_p/D_cx 100
D. d_pD_c/100

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4. The relationship between the del factor, temperature and time is given as

A. Δ = A.t. e^–E/RT
B. Δ = 1/(A.t. e^-E/RT)
C. Δ = A.t. e^E/RT
D. Δ = A.t.T

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5. The del factor (Δ) increases as the final number of cells

A. decreases
B. increases
C. zero
D. constant

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