1. Shortest incubation period is seen in:InfluenzaHepatitis BHepatitis ARubellaQuestion 1 of 20 2. In a study in UK, an association was found between sale of an antiarrhythmic drug and an increase in deaths due to asthma. This is an example of:Case reference studyEcological studyExperimental studyCohort studyQuestion 2 of 20 3. Screening of oral cancer comes under which level of prevention:PrimordialSecondaryPrimaryTertiaryQuestion 3 of 20 4. Adjuvant used in DPT vaccine isCopperZincAluminiumMagnesiumQuestion 4 of 20 5. All of the following are applications of knowing the incubation period of a disease exceptTo determine the period of quarantineTo determine the period of isolationTo prevent infection amongst contacts of the infected personTo differentiate among secondary cases and co-primary casesQuestion 5 of 20 6. Which study is used to evaluate the incidence of caries in 12 years old children in a Madhya Pradesh schoolRCTRetrospectiveProspectiveCross-over trialQuestion 6 of 20 7. Forecast of probable cause and outcome of an attack of the disease and prospects of recovery as indicated by nature of disease and symptoms of the caseRiskTreatmentDiagnosisPrognosisQuestion 7 of 20 8. Care indexratio of missing teeth to healthy teethratio of denture users to non-denture usersratio of filled teeth to teeth presentno. of filled teeth per personQuestion 8 of 20 9. Isolation is strictly recommended forMumpsPneumonic plagueMeaslesHepatitis AQuestion 9 of 20 10. Concentration of fluoride in salt9Oppm275ppm225ppm250ppmQuestion 10 of 20 11. When analyzing a small sample with two sets of observations where values of observations are dependent on each other, which test will be used:Paired T testFisher F testZ testUnpaired T testQuestion 11 of 20 12. Live viral vaccine isMeaslesSalkHepatitisRabiesQuestion 12 of 20 13. If prevalence of disease is high in population, requiresMedium screeningHigh screeningLow level screeningNo screeningQuestion 13 of 20 14. Infected waste is disposed in which containerRedBlueBlackYellowQuestion 14 of 20 15. Reference ages for pathfinder survey:3 yrs, 12 yrs, 35-44 yrs, 60-74 yrs7 yrs, 12 yrs, 35-44 yrs, 65-74 yrs5 yrs, 12 yrs, 35-44 yrs, 65-74 yrs6 yrs, 12 yrs, 35-44 yrs, 65-74 yrsQuestion 15 of 20 16. Cavity conditioning in ART is done by10% Polyacrylic Acid37% Phosphoric AcidCocoa ButterPetroleum JellyQuestion 16 of 20 17. Standard error of mean is calculated byMean/SDSD/ ?nSD/nSD/meanQuestion 17 of 20 18. Which of the following is not an accepted method of randomizationLotteryComputer drawn randomizationOdd/even day hospital admissionRandom number tableQuestion 18 of 20 19. The major purpose of randomization in a clinical trials is toReduce selection bias in allocation to treatment groupsFacilitate double blindingEnsure the groups arc comparable on base line characteristicsHelp ensure the study subjects are representative of general populationQuestion 19 of 20 20. In case of Confounding variable which type of association is seen between disease and factorIndirectSpuriousTemporalDirectQuestion 20 of 20 Loading...