186q: chlorine demand is measured by ?
a. horrock’s apparatus
b. colorimeter
c. double pot
d. berkfeld filter
187q: which of the following is not transmitted by lice ?
a. Q fever
b. Trench fever
c. Relapsing fever
d. Epidemic typhus
188q: which of the following statements about lepromin test is false ?
a. it is negative in most children in first 6 months of life
b. it is a diagnostic test
c. it is an important aid to classify the type of leprosy
d. BCG vaccine may convert lepra reaction from negative to positive
189q: true about Accredited Social Health Activist ( ASHA ) is ?
a. mental health worker
b. deployed per thousand people
c. to replace anganwadi worker in ICDS programme
d. minimum need program worker
190q: true about point source epidemic are all except ?
a. the curve has rapid rise and slow decline
b. all cases occur in one incubation period
c. one single peak only
d. no secondary curves
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