21 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 11

51q: in two groups of subjects , BP was taken before and after giving an antihypertensive drug . this type of study is known as ?

a. paired T test
b. Chi-Square test
c. T-test
d. J-test

answer a . paired T test .

52q: India is having crude birth rate from 93 to 80 and death rate from 21 to 10 , the country is in which stage of demographic cycle ?

a. late expanding
b. early expanding
c. high stationary
d. low stationary

answer a. late expanding . india is now in late expanding phase

53q: minimum requirement of portable water is all except ?

a. 95% of sample should not contain any coliform organisms in 100 ml
b. No sample should contain E coli in 100 ml
c. No sample should contain more than three coliform organisms per 100 ml
d. Coliform organisms may ( 1 to 2 ) or may not be detectable in 100 ml of any two consecutive samples

answer c and d .

54q: for multiple choice questions ( mcqs ) asked on population catering the following table should be remembered thoroughly :

 

answer:

 

SUBCENTRE	5000 in general
	3000 in hilly, tribal and backward areas
PHC	30000 in general
	20000 in hilly,tribal and backward areas
CHC	80000 to 1.2 lakh
Male and Female Health Assistants	30000 in general
	20000 in hilly, tribal or backward areas
Male and Female Health Workers	5000 in general
	3000 in hilly,tribal and backward areas
Health Guide	1000
Anganwadi workers	1000

55q: quarantine is related to ?

a. minimum incubation period
b. maximum incubation period
c. serial interval
d. generation time

answer b . maximum incubation period