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*cylindrical collection diameter)

_{c }A. *d _{p}*/

*D*

_{c}B.

*d*x

_{p}*D*

_{c}C.

*d*/

_{p}*D*x 100

_{c}D.

*d*/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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