A 1

B 2

C 3

D 4

A Reverse osmosis

B Sedimentation

C Both

D Neither

A Ingestion

B Dermally

C Inhalation

D Through conjunctiva

A Pregnancy

B Undiagnosed vaginal bleeding

C Pelvic inflammatory disease

D Uterine malformation

A 50%

B 55%

C 60%

D 70%

A 20 mg

B 30 mg

C 40 mg

D 50 mg

A 40 mg

B 100 mg

C 200 mg

D 500 mg

A Live vaccine

B Live attenuated vaccine

C Toxoid

D Killed vaccine

A Education, family size and housing

B Education, occupation and housing

C Income, family size and land holding

D Education, occupation and income

A 0.10%

B 0.31%

C 0.50%

D 1%