1. All of the following are true about standard error of mean except:As the sample size increases, standard error will also increaseIt depends on standard deviation of meanBased on normal distributionUsed to estimate confidence limitQuestion 1 of 20 2. Adjuvant used in DPT vaccine isZincAluminiumCopperMagnesiumQuestion 2 of 20 3. Degree of relationship between cause and effect is represented bySignificancePower of studyRisk ratioP valueQuestion 3 of 20 4. A dentist assigns a specific task to be done on a patient to a junior doctor. The dentist remains in the set up while the task is carried out but does not continuously watches the task is being carried out. What is this called:General supervisionDirect supervisionIndirect supervisionPersonal supervisionQuestion 4 of 20 5. Reference ages for pathfinder survey:6 yrs, 12 yrs, 35-44 yrs, 65-74 yrs7 yrs, 12 yrs, 35-44 yrs, 65-74 yrs5 yrs, 12 yrs, 35-44 yrs, 65-74 yrs3 yrs, 12 yrs, 35-44 yrs, 60-74 yrsQuestion 5 of 20 6. In epidemiology, a sample is:Represents each individualA group of people in a small areaSmall group of people representing the populationRepresents a small group of people of low socio-economic statusQuestion 6 of 20 7. A test has high false positive rate in a community. True isHigh prevalenceLow prevalenceHigh specificityHigh sensitivityQuestion 7 of 20 8. Xylitol isLow caloric natural sweetenerLow caloric artificial sweetenerNon caloric sweetenerCaloric sweetenerQuestion 8 of 20 9. The no. of death due to oral carcinoma divided by mid-year population?Specific death rateCrude death rateCase fatality rateProportional death rateQuestion 9 of 20 10. When an outcome is compared with intended objectives, it is called as -MonitoringNetwork analysisEvaluationInput-Output analysisQuestion 10 of 20 11. Sputum can be disinfected by all except:CresolAutoclavingBoilingChlorhexidineQuestion 11 of 20 12. Change in event with respect to time is best depicted byLine diagramBar diagramPie chartDot diagramQuestion 12 of 20 13. Comprehensive school based dental care for whole country is adopted byAustraliaUSANew ZealandSwedenQuestion 13 of 20 14. Colorado stain is another name forFluorosisFluoride BombNoneArrested CariesQuestion 14 of 20 15. The purpose of double blinding in clinical trials is toAvoid subject biasAvoid observer biasAvoid observer and subject biasAchieve comparability between study and controlQuestion 15 of 20 16. Not true about propagated epidemicsMultiple waves of epidemicSharp rise and decrease sharplyPerson to person transmissionHerd immunity presentQuestion 16 of 20 17. Which of the following types of bias can be reduced by allowing equal interview timeSelection biasInterviewer biasRecall biasBerkesonian biasQuestion 17 of 20 18. Plastic wrapper of surgical syringe should be discarded in:Yellow bagRed bagBlueBlack bagQuestion 18 of 20 19. 85% of lung cancer among smokers was due to their smoking. This is an example ofOdds ratioPopulation attributable risk.Attributable riskRelative riskQuestion 19 of 20 20. In which of the following disease, the overall survival is increased by screening procedureColon CaLung CancerOvarian CaProstate CaQuestion 20 of 20 Loading...