1. How many demographic cycles are there in the world3465Question 1 of 20 2. Method of identifying missing and supplementing case is patient is:MonitoringNotification systemSentinel SurveillanceSample registrationQuestion 2 of 20 3. The proportion of the population which is included in the study sample is called asReference populationSampling frameTarget populationSampling fractionQuestion 3 of 20 4. Outdated and expired drugs should be disposed in which of the following mannersAutoclaveStore for 10 year and then bury in landfillsDiscard in Municipal wasteTreat and bury in landfillsQuestion 4 of 20 5. The avian flu H5N1 has high mortality in humans. However it has not been able to become a pandemic infection. What is the reason:It easily spreads in wild birds but not in domestic poultryPoor man to man transmissionIts DNA has avian characteristicsIt causes serious illness leading to death of the patientQuestion 5 of 20 6. An active carious lesion can be stopped from progression by application of which of the following:Silver diamine fluorideSnFAPFNaFQuestion 6 of 20 7. A standard z score is related to?None of the aboveMeasure of central tendencyScore which is away from medianScore which is away from meanQuestion 7 of 20 8. In a dental clinic, auxiliary perform duties after personal diagnosis and direction of dentist and patient is sent after his clearance comes underPersonal guidance/ supervisionGeneral guidance/ supervisionIndirect guidance/ supervisionDirect guidance/ supervisionQuestion 8 of 20 9. Which of the following statements about confidence limits/ interval is true:Smaller the confidence level larger will be the confidence interval95% confidence interval will cover 2 standard errors around the meanLess variable the data, wider will be the confidence intervalSample size does not affect the confidence intervalQuestion 9 of 20 10. Caries promoting mineralFluorideTitaniumSeleniumIronQuestion 10 of 20 11. Richest source of vitamin D isFish oilGreen leafy vegetablesEggMilkQuestion 11 of 20 12. Which epidemiological study gives the most accurate result?Cross-sectional studyCohort studyRandomized control trial with double blindingMeta analysisQuestion 12 of 20 13. Anti-Rabies vaccine is not indicated in:Rat biteCat biteMonkey biteDog biteQuestion 13 of 20 14. In a demographic cycle, If death rate is declining but there is no increase in birth rate this population is called asDecliningEarly expandingLow stationaryHigh stationaryQuestion 14 of 20 15. All of the following are true about standard error of mean except:It depends on standard deviation of meanUsed to estimate confidence limitAs the sample size increases, standard error will also increaseBased on normal distributionQuestion 15 of 20 16. Double pot is method ofChlorinationDefluoridationOzonisationFluoridationQuestion 16 of 20 17. Dentist act was passed in1956195019451942Question 17 of 20 18. What of the following is the best method to measure the degree to which two variables move together in a distributionCovarianceCorrelation coefficientCertainty equivalentVarianceQuestion 18 of 20 19. Common to both acute and chronic malnutrition isHeight for ageWeight for ageWeight for heightBMIQuestion 19 of 20 20. Age was found to be a factor affecting the relation of diabetes mellitus and periodonticsSampling BiasSelection BiasConfounding BiasInformation BiasQuestion 20 of 20 Loading...