154 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 47

236q: the most common cause of blindness in India is ?

 answer  cataract .

237q: under national programme for prevention of nutritional blindness , a child in the age group of 6-11 months is given a mega dose of vitamin A equal to ?

a. 50000 IU
b. 1 lakh IU
c. 1.5 lakh IU
d. 2 lakh IU

 answer  b . 1 lakh IU .

238q: the usual incubation period of pertussis is ?

 answer 7-14 days .

239q: risk of damage of fetus by maternal rubella is maximum if mother gets infected in ?

a. 6-12 weeks of pregnancy
b. 20-24 weeks of pregnancy
c. 21-25 weeks of pregnancy
d. 32 – 36 weeks of pregnancy

 answer  a . 6-12 weeks of pregnancy .

240q: deficienct in weight for height in a 3 year old child indicates

a. acute malnutrition
b. chronic malnutrition
c. concomitant acute and chronic
d. underweight

 answer  a. acute malnutrition .

241q: several studies show that 85 % of cases of lung cancer are due to cigarette smoking . it is a measure of ?

a. incidence rate
b. relative risk
c. attributable risk
d. absolute risk

 answer  c . attributable risk 

153 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 46

231q: if the birth weight of each of the babies born in a hospital in a day is found to be 2.8 kgs , then the standard deviation of the sample will be ?

a. 2.8
b. 0
c. 1
d. 0.28

 answer  b . 0 . 

232q: a diagnostic test for a particular disease has a sensitivity of a 0.90 and a specificity of 0.80 . a single test is applied to each subject in the population in which the diseased population is 30 %. What is the probability that a person negative to this test , has no disease ?

 answer 95 % 

233q: according to WHO , blindness is defined as a visual acuity of the better eye , less than ?

a. 6/60
b. 5/60
c. 4/60
d. 3/60

 answer  d . 3/60 .

234q: the drug of choice for treating cholera in a pregnant women is ?

a. tetracycline
b. doxycycline
c. furazolidine
d. cotrimoxazole

 answer  c . furazolidine . for adults it is doxycycline and for children it is cotrimoxazole

235q: when an intervention is applied to community to evaluate its usefulness , it is termed as a trial for

a. efficacy
b. effectiveness
c. efficiency
d. effect modification

 answer  b . effectiveness .

152 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 45

226q: vitamin A deficiency is considered a public health problem if prevalence rate of night blindness in children between 6 months to 6 years is more ?

a. 0.01 %
b. 0.05 %
c. 0.1 %
d. 1.0 %

 answer  d . 1.0 % 

227q: the highest perecentages of PUFAs are present in ?

a. groundnut oil
b. soyabean oil
c. margarine
d. palm oil

 answer  b . soya bean oil .

In the decreasing order of content of PUFA :

1. SAFFLOWER OIL ,
2. SUNFLOWER OIL,
3. CORN OIL,
4. SOYABEAN OIL,
5. COTTON OIL,
6. MARGARINE OIL,
7. GROUNDNUT OIL,
8. PALM OIL,
9. BUTTER and
10. COCONUT OIL .

228q: a randomized trial comparing efficacy of two regimens showed that difference is statistically significant with P greater than 0.001 but in reality the two drugs do not differ in their efficacy . this is an example of :

a. type-I error ( alpha error )
b. type-II error ( beta error )
c. I-alpha
d. I-beta

 answer  a. type-I error ( alpha error )

229q: histogram is used to describe ?

a. quantitative data of a group of patients
b. qualitative data of a group of patients
c. data collected on nominated scale
d. data collected on ordinal scale

 answer  a . quantative data of group of patients .

230q: a physician after examining a group of patients of a certain disease , classifies the condition of each one as NORMAL, MILD, MODERATE or SEVERE . which one of the following is the scale of measurement that is being adopted for classification of the disease condition ?

a. nominal
b. interval
c. ratio
d. ordinal

 answer  d . ordinal .

151 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 44

221q: which of the following is not transmitted by lice ?

a. Q fever
b. Trench fever
c. Relapsing fever
d. Epidemic typhus

 answer  a . Q fever .

222q: true about endemic typhus ?

a. man is the only reservoir of infection
b. flea is a vector of the disease
c. the rash developing into an eschar is characteristic of the disease
d. culture is the diagnostic modality

 answer b. flea is a vector of the disease 

223q: brucellosis can be transmitted by all of the following modes except ?

a. contact with infected placenta
b. ingestion of raw vegetables from infected farms
c. person to person transmission
d. inhalation of infected dust or aerosol

 answer  c . person to person transmission .

224q: the following statements are true regarding leptospirosis except ?

a. it is zoonosis
b. man is the dead end host
c. man is an accidental host
d. lice act as vectors of infection

 answer  d . rats and small rodents are the vectors of the disease. 

225q: the mechanisms by which cholera might be maintained during the intervals between peak cholera seasons is ?

a. carrier status in animals
b. carrier status in man
c. an environmental reservoir
d. continuous transmission in man

 answer  d . continuous transmission in man. 

150 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 43

216q: under eradication of congenital rubella syndrome program the first priority group for rubella vaccination is ?

a. all non pregnant women of age 15 to 34
b. all adolescent non pregnant girls 15 to 24 years of age
c. all female children at one year
d. all non pregnant women

 answer  a. all non pregnant women of age 15 to 34 .

217q: the highest percentages of PUFAs are present in ?

a. ground nut oil
b. palm oil
c. margarine
d. soya bean oil

 answer  d . soya bean oil .

218q: cluster sampling all are true except ?

a. obtained by stratification of population
b. according to study design the sample size will vary
c. can be done by random sampling from groups
d. similar to simple random sampling

 answer  d is false becoz it is not similar to random sampling. 

219q: the major purpose of randomization in clinical trials is to ?

a. facilitate double blinding
b. help ensure that the study subjects are representative of the general population
c. ensure that the groups are comparable on baseline characterisitics
d. reduce selection bias in allocation of treatment

 answer  c . ensure that the groups are comparable on baseline characterisitics

220q: about IUCD all are true except ?

a. efficiency of lippes loop and copper-T are almost same
b. used as an emergency contraception upto 5 days post exposure
c. LNG IUCD has a life span of 5 years
d. Multiload copper-T belongs to third generation

 answer  d . multiload copper-T does not belong to third generation .

149 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 42

211q: chronic carrier state is seen in all except ?

a. measles
b. diphtheria
c. herpes
d. cholera

 answer  a . measles .

212q: 85% of lung cancer among smokers was due to their smoking . this is an example of ?

a. attributable risk
b. relative risk
c. odds ratio
d. population attributable risk

 answer  a . attributable risk .

213q: treatment of severe ulnar neuritis in borderline tuberculoid leprosy ?

a. MDT only
b. MDT + steroid
c. Wait and watch
d. MDT + thalidomide

 answer  b . MDT + steroid .

214q: BMI of obese ?

a. 20
b. 30
c. 40
d. 51

 answer  b . 30 .

215q: a study was conducted on the use of herbal tea in prevention of common cold . data is collected on the number of people who had cold and those who did not have it . the following data is obtained :

 

	HERBAL TEA	HERBAL TEA
	Consumed	Not consumed
Had cold	12	23
Did not have cold	34	38

 Which analytical test you use for this study ?

1. student – t
2. chi square test
3. paired – t test
4. pearson’s correlation coefficient 

 answer  b . chi square test .

148 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 41

206q: the experiment study for which most accurate result is obtained

a. randomized CT with double blinding
b. retrospective cohort study
c. cross sectional study
d. meta analysis

 answer  a . randomized CT with double blinding .

207q: any loss or abnormality of psychological , physiological or anatomical structure or function is ?

a. impairment
b. disability
c. handicap
d. disease

 answer  a . impairment .

208q: a data is arranged as satisfied , very satisfied , dissatisfied . this is a ?

a. nominal data
b. ordinal data
c. interval data
d. ratio

 answer  b . ordinal data .

209q: all can be incenirated except ?

a. cytotoxic waste
b. sharps
c. anatomical waste
d. infectious waste

 answer  b . sharps .

210q: herd immunity all are true except ?

a. herd structure is constant
b. it is mostly due to subclinical infection
c. can be aquired by immunization
d. spread of epidemic is influenced by it

 answer  a is false becoz herd structure is not constant .

147 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 40

201q: in RNTCP the method used to confirm cases is ?

a. sputum rapid culture
b. sputum microscopy
c. chest radiograph
d. PCR antibody detection

 answer  b . sputum microscopy .

202q: assessment of impact of iodine supplement therapy in a community is best done by ?

a. goiter in pregnant women
b. goiter in children of age 12-18
c. neonatal thyroxine levels
d. urinary iodine levels in pregnant women

 answer  c . neonatal thyroxine levels 

203q: you have diagnosed a patient clinically as having SLE and ordered 6 tests . out of which 4 tests have come positive and 2 are negative . to determine the probability of SLE at this point , you need to know ?

a. prior probability of SLE ; sensitivity and specificity of each test
b. incidence of SLE and predictive value of each test
c. incidence and prevalence of SLE
d. relative risk of SLE in this patient

 answer  a . prior probability of SLE , sensitivity and specificity of each test

204q: all of the following are indicators included in the Physical Quality Of Life Index ( PQLI ) except ?

a. infant mortality rate
b. life expectancy at age one
c. literacy rate
d. per capital income

 answer  d . per capita income .

205q: direct standardization is used to compare the mortality rates between two countries . this is done because of the difference in ?

a. causes of death
b. numerators
c. age distributions
d. denominators

 answer  c . age distributions .

146 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 39

196q: chlorine demand is measured by ?

a. horrock’s apparatus
b. chlorimeter
c. double pot
d. berkfeld filter

 answer  a . horrock’s apparatus .

197q: in a study in UK they found an association between sale of asthmatic drugs and an increase in deaths due to asthma from 1979 to 1990 . this is an example of ?

a. ecological study
b. cohort study
c. case reference study
d. experimental study

 answer  a . ecological study .

198q: a newly found technique for estimating Hb found the values as 9.4, 9.0, 9.3, 12.4, 9.2, ………. 10.3 and 12.2 . by calorimetry the Hb was estimated to be 10.2 gram percent . so the new test has ?

a. low validity and high reliability
b. high validity and high reliability
c. low validity and low reliability
d. high validity and low reliability

 answer  c . low validity and low reliability .

199q: problem village is all except ?

a. distance of safe water is greater than 1.6 kilometer
b. depth is more than 16 metres
c. waer is polluted with inorganic substance
d. water infested with guinea worm

 answer  d . a problem village is defined as one where no source of safe water is available within a distance of 1.6 km or where water is available at a depth of more than 15 metres or where water source has excess salinity, iron , fluorides and other toxic elements or where water is exposed to the risk of cholera .d. water bottle heart

200q: best method used to find the difference between a newly found test and gold standard test ?

a. correlation study
b. regression study
c. bland and altman analysis
d. none

 answer  c . bland and altman analysis .

145 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 38

191q: SAFE in trachoma programme refers to all except ?

a. screening
b. antibiotics
c. facial cleaning
d. environmental control

 answer  S in SAFE stands for surgery and not screening. 

192q: endemic ascites is caused by ?

a. afltotoxin B
b. ergot
c. sanguinarine
d. pyrrolizidine

 answer  d . pyrrolizidine .

193q: specificity of a test refers to its ability to detect ?

a. true positives
b. true negatives
c. false negatives
d. false positives

 answer  b . true negatives .

194q: socialization of medicine leads to all except ?

a. reduces competition among physicians for clients
b. supported by the state and provides free medical service
c. universal coverage of health services
d. ensures the complete utilization of services by all people

 answer  d . ensures the complete utilization of services by all people .

195q: active method to detect undiagnosed cases in apparently healthy people ?

a. screening
b. surveillance
c. case finding
d. notification

 answer  a . screening .

145 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 38

191q: SAFE in trachoma programme refers to all except ?

a. screening
b. antibiotics
c. facial cleaning
d. environmental control

 answer  S in SAFE stands for surgery and not screening. 

192q: endemic ascites is caused by ?

a. afltotoxin B
b. ergot
c. sanguinarine
d. pyrrolizidine

 answer  d . pyrrolizidine .

193q: specificity of a test refers to its ability to detect ?

a. true positives
b. true negatives
c. false negatives
d. false positives

 answer  b . true negatives .

194q: socialization of medicine leads to all except ?

a. reduces competition among physicians for clients
b. supported by the state and provides free medical service
c. universal coverage of health services
d. ensures the complete utilization of services by all people

 answer  d . ensures the complete utilization of services by all people .

195q: active method to detect undiagnosed cases in apparently healthy people ?

a. screening
b. surveillance
c. case finding
d. notification

 answer  a . screening .

144 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 37

186q: chlorine demand is measured by ?

a. horrock’s apparatus
b. colorimeter
c. double pot
d. berkfeld filter

 answer  a . horrock’s apparatus .

187q: which of the following is not transmitted by lice ?

a. Q fever
b. Trench fever
c. Relapsing fever
d. Epidemic typhus

 answer  a . Q fever is caused by soft ticks .

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

 answer  b is false because it is not a diagnostic test .

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

 answer  b . deployed per thousand people .

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

 answer  a is false becoz the curve has rapid rise and rapid decline .

143 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 36

181q: richest source of vitamin D is ?

a. egg
b. milk
c. vegetables
d. fish

 answer  d. fish . HOW CAN SHARK FISHES EAT BALD MEN . halibut liver oil – cod liver oil – shark liver oil – fish fat – eggs – butter – milk . in descending order 

182q: which is an example of diability limitation ?

a. resting the affected limb in neutral position
b. arranging for schooling of a child suffering from PPRP
c. reducing occurrence by polio immunization
d. providing calipers for walking

 answer  a. resting the affected limb in neutral position .

183q: for allocation of control and placebo groups in RCT , which of the following is least useful ?

a. odd and even registration numbers in hospital
b. computerized sequence selection
c. random table
d. drawn by lots

 answer  a . odd and even registration numbers in hospital. 

184q: best method to find the difference between a newly found test and the gold standard test ?

a. correlation study
b. regression study
c. bland and altman analysis
d. kongarov smrinov test

 answer  c . bland and altman analysis .

185q: least common complication of measles is ?

a. SSPE
b. Pneumonia
c. Otitis media
d. Keratomalacia

 answer  a . SSPE . 

142 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 35

 

176q: 100 women with a mean Hb of 10 gms % . SD is 1 . what is the standard error?

 answer  use the formula SE = SD / square root of n . that is 1 / 10 = 0.1 . so 0.1 is the answer

177q: atkins diet is severe restriction of ?

a. carbohydrate
b. protein
c. fat
d. vitamin

 answer  a . carbohydrate .

178q: LJ chart is used for ?

a. accuracy
b. precision
c. sensitivity
d. specificity

 answer  a . accuracy .

179q: which of the following dietary interventions reduces the further risk in MI patients ?

a. n3 PUFA
b. high fiber diet
c. sterol ester
d. potassium supplement

 answer  a. n3 PUFA .

180q: group of diabetic patients , insulin was administered and long term monitoring of HBA1C level and blood glucose adjusted for age and sex was done . this test is best explained by ?

a. logistic regression
b. linear regression
c. pearson correlation coefficient
d. student T test

 answer  a. logistic regression . 

141 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 34

171q: which of the following characteristics is not of much significance in a screening test ?

a. high sensitivity
b. high specificity
c. low cost
d. high safety margin

 answer  b . high specificity .

172q: ASHA – which of the following is wrong ?

a. a female health worker
b. one for thousand rural population
c. mobilization for antenatal care
d. skilled birth attendant

 answer  d. skilled birth attendant .

173q: when the confidence level of a test increases which of the following will happen ?

a. no change in significance
b. previously significant value becomes insignificant
c. previoiusly insignificant value becomes significant
d. no change in significance results

 answer c. previously insignificant values become significant

174q: in which of the following diseases , screening for the disease has greatly reduced the incidence ?

a. carcinoma lung
b. carcinoma colon
c. carcinoma larynx
d. CML

 answer  b. carcinoma colon .

175q: what is standard error ?

a. SD X n
b. SD / n
c. SD / square root of n
d. SD X SD

 answer  c . SD / square root of n .

140 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 33

166q: target of couple protection rate in WHO goal of HEALTH FOR ALL by 2000 AD is ?

a. 60
b. 40
c. 80
d. 100

 answer : a. 60 

167q: magnitude and trend of tuberculosis in a community is assessed by ?

a. fatality rate
b. incidence rate
c. prevalence rate
d. tuberculin conversion index

 answer  d . tuberculin conversion index .

168q: vector for KFD ?

 answer  tick 

169q: best indicator of malarial prevalence in community is ?

a. adult parsite rate
b. spleen rate
c. infant parasite rate
d. new cases in community

 answer  b . spleen rate .

170q: which intervention is associated with increased birth weight in pregnancy ?

a. bed rest
b. calcium and magnesium supplement
c. cessation of smoking
d. aspirin

 answer  c . cessation of smoking .

139 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 32

161q: which one is the best indicator for hepatitis B infection in a community ?

a. hepatitis B surface antigen
b. hepatitis B surface antibody
c. core antibody
d. core antigen

 answer  c . core antibody .

162q: true regarding dengue fever is all except ?

a. hemorrhagic tendency
b. spontaneous remission
c. transmitted by anopheles mosquito
d. fever is saddle back type

 answer  c. it is transmitted by aedes aegypti .

163q: specificity increases with ?

a. increase in false positive
b. increase in false negative
c. increase in true positive
d. increase in true negative

 answer  d. increase in true negative . 

164q: sensitivity is ?

 answer  true positives 

165q: the ratio between incidence of disease among exposed and non-exposed is called as ?

a. relative risk
b. odds ratio
c. attributable risk
d. none of the above

 answer a.  relative risk . in the same question if there is minus instead of ratio then it is attributable risk .

138 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 31

156q: true about cross sectional study are all except ?

a. less expensive
b. less time required
c. many outcomes are possible
d. relationship between cause and effect possible

 answer d. relationship between cause and effect possible 

157q: chandler’s index is meant for ?

a. filariasis
b. ankylostoma
c. guinea worm
d. round worm

 answer  b. ankylostoma . 

158q: extra calories required during lactation ?

 answer 550 kcal .

159q: all are true regarding case fatality rate except ?

a. killing power of disease
b. more useful in chronic diseases
c. value changes with different epidemic
d. time interval is not considered

 answer  b . it is rarely useful in chronic diseases .

160q: time interval between primary and secondary case is ?

a. serial interval
b. extrinsic incubation period
c. period of communicability
d. intrinsic incubation period

 answer a. serial interval 

138 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 31

156q: true about cross sectional study are all except ?

a. less expensive
b. less time required
c. many outcomes are possible
d. relationship between cause and effect possible

 answer d. relationship between cause and effect possible 

157q: chandler’s index is meant for ?

a. filariasis
b. ankylostoma
c. guinea worm
d. round worm

 answer  b. ankylostoma . 

158q: extra calories required during lactation ?

 answer 550 kcal .

159q: all are true regarding case fatality rate except ?

a. killing power of disease
b. more useful in chronic diseases
c. value changes with different epidemic
d. time interval is not considered

 answer  b . it is rarely useful in chronic diseases .

160q: time interval between primary and secondary case is ?

a. serial interval
b. extrinsic incubation period
c. period of communicability
d. intrinsic incubation period

 answer a. serial interval 

137 - AIIMS community medicine mcqs or social and preventive medicine mcqs ( spm or psm ) from all previous years AIIMS papers with answers - part 30

151q: mosquitoes act as intermediate vector for ?

a. cholera
b. typhoid
c. filarial
d. all the above

 answer  c . filariasis only .

152q: which is true about typhoid carrier ?

a. sputum or milk may be the source
b. excreted more in feces than in urine
c. occurs more commonly in female
d. bacilli are excreted for 4-6 months only

 answer  b . excreted more in feces than in urine .

153q: in case fatality rate , true is ?

a. numerator is always constant
b. denominator is always constant
c. numerator and denominator are proportion of each other
d. numerator and denominator are two separate entities

 answer d. numerator and denominator are two separate entities

154q: for studying relationship of hypertension as etiological agent of CVS diseases , study used is

a. longitudinal study
b. cohort study
c. random sampling
d. cross sectional study

 answer  a . longitudinal study .

155q: when frequency is given as mild , moderate and severe , method used is ?

a. ratio
b. nominal
c. variance
d. interval

 answer  b. nominal .