STERILIZATION

STERILIZATION

1). Efficiency of sterilization can be tested by

a)      Litmus paper

b)      Spores of bacillus steorothermophilus

c)      By growing colonies of rod shaped bacteria

d)     None of the above

ANS: B

2). Difference between sterilization and disinfection is

a)      The former kills the spores along with micro organisms.

b)      The later kills the spores along with micro organisms.

c)      Both are same.

d)     Only difference is of temperature.

ANS :a

3). Sharp instruments are effectively sterilized by:-

a)      Autoclave

b)      Chemicals

c)      Dry heat

d)     Any method

ANS: C

4) Ethylene oxide gas sterilization is achieved by

a)      Alkylation of organisms

b)      Denaturation of nucleic acids by the micro organisms

c)      Both of above

d)     None of above

ANS: c

5).releasing time required in an autoclave is

a)      5 mins

b)      10 mins

c)      15 mins

d)     20 mins

ANS: D