1. The most suitable method for presenting frequency distribution of data gathered from continuous variables isPictogramHistogramLine diagramBar graphQuestion 1 of 20 2. Safe disposal of mercury is:Deep burialControlled combustionTreatment with chemicalsCollect carefully and recycleQuestion 2 of 20 3. An orphan population of 7-13 yrs age has been put on facto vegetarian diet, which study it wasHope wood house studyTurku studyVipehoirn studyTristan da cunha studyQuestion 3 of 20 4. Mean respiratory rate in different kind of smokers and nonsmokers, categorized as four categories mild, moderate, heavy and nonsmoker. test used to assess the means between them -Student t testChi square testOne way ANOVATwo way ANOVAQuestion 4 of 20 5. In patients of leprosy, Lepromin test is used for:Epidemiological investigationsDiagnosisPrognosisTreatmentQuestion 5 of 20 6. Double pot is method ofFluoridationOzonisationChlorinationDefluoridationQuestion 6 of 20 7. Term Colorado stain was given byGreeneKnutsonDeanMcKayQuestion 7 of 20 8. Anti-Rabies vaccine is not indicated in:Rat biteDog biteMonkey biteCat biteQuestion 8 of 20 9. Specificity of a test measures:True positivesFalse positivesFalse negativesTrue negativesQuestion 9 of 20 10. The pattern of change of disease trends of mortality and morbidity where the pandemics of infection. are replaced by degenerative and manmade disorders as the main cause of morbidity and mortality is known as:Reversal of transitionDemographic transitionEpidemiological transitionParadoxical transitionQuestion 10 of 20 11. A test comes negative but the disease was present in subject. This isTrue negativeTrue positiveFalse negativeFalse positiveQuestion 11 of 20 12. A test has high false positive rate in a community. True isHigh specificityLow prevalenceHigh prevalenceHigh sensitivityQuestion 12 of 20 13. Education of young children in school about the harmful effects of soft foods leading to caries is done to prevent dental caries. What is this type of prevention calledTertiary preventionEducational interventionPrimary preventionSecondaryQuestion 13 of 20 14. In national water supply and sanitation program, a 'Problem village' is defined as all exceptWater is infested with guinea wormsDistance of safe water source is more than 1.6.kmWater is available at a depth of more than 15 metersWater source has excess of iron, fluoride and heavy metalsQuestion 14 of 20 15. Which of the following is true about Epidemiological survey as compared to clinical trial: 1. Sample size small 2. Cross sectional and longitudinal approach 3. Dental indices are used 4. Control and experimental group2,31,41,2 and3All are trueQuestion 15 of 20 16. When chlorate in water starts to disappear and free chlorine starts to appear, it is calledFlow pointEnd pointScreen pointBreak pointQuestion 16 of 20 17. Helsinki declaration is forEthical duties and rules for physicians in general practiceAll of the aboveEthical duties and rules for dentists in general practiceEthical duties for biomedical research involving human subjectsQuestion 17 of 20 18. Problem of recall bias is seen in:Case controlEpidemiological studiesCross sectional studiesCohortQuestion 18 of 20 19. Meta-analysis is helpful in dentistry to:Provide quantitative summary measure from many studiesDefine who is at risk of diseaseDecreases publication biasGuide statistical testing for clinical proceduresQuestion 19 of 20 20. While calculating Infant mortality rate, which of the following is not includedPostnatal deathStill birthPerinatal deathNatal deathQuestion 20 of 20 Loading...
