1. All of the following are true about cluster sampling except:The sample size may vary according to study designIs a Rapid and simple methodSamples are similar to those in Simple Random SamplingIt is a type of probability sampleQuestion 1 of 20 2. In a normal distribution, 99.73% of the population is covered within how many SD2143Question 2 of 20 3. 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:Paradoxical transitionReversal of transitionDemographic transitionEpidemiological transitionQuestion 3 of 20 4. Standard deviation is a measure ofCentral tendencyChanceDeviation from mean valueNoneQuestion 4 of 20 5. Tetracycline is used in prophylaxis of which of the following diseasesLeptospirosisMeningitisCholeraBrucellosisQuestion 5 of 20 6. Ability of screening test to correctly identify the diseaseNegative predictivePositive predictiveSpecificitySensitivityQuestion 6 of 20 7. A person who assists the dentist in the clinic but is not allowed to treat patients independently is known as:Dental assistantDental hygienistExtended dental auxiliaryDental therapistQuestion 7 of 20 8. Fourth generation pit and fissure sealants are:High viscosity sealantsFluoride releasingColored sealantsUV light curedQuestion 8 of 20 9. The Community Periodontal index for Treatment Needs is recorded for?QuadrantsSextantsWhole dentitionOne archQuestion 9 of 20 10. According to WHO, which of the following disease is eradicated from the planet:Chicken poxMeaslesSmall poxYellow feverQuestion 10 of 20 11. Prevalence of disease will decrease in all of the following scenarios, exceptAdvanced Treatment Modalities Are AvailableIf case-fatality rate is highLack of Advanced Diagnostic Services at CentresImmigration of CasesQuestion 11 of 20 12. Term Colorado stain was given byMcKayGreeneDeanKnutsonQuestion 12 of 20 13. In a positively skewed population distribution with a long tail, which of the following is used as measure of central tendencyModeMeanStandard deviationMedianQuestion 13 of 20 14. Richest source of vitamin D isFish oilMilkEggGreen leafy vegetablesQuestion 14 of 20 15. Sequence of contents in scientific report of oral health survey:Aim, Materials and methods, result, conclusionIntroduction, Materials and methods, result, discussionReview of literature, Aim, methods and material, resultsIntroduction, Aim, materials and methods, resultsQuestion 15 of 20 16. Acceptable range of microbial load in water line of dental unit for immunocompromised patient300-600 CFUNo specific limit200-400CFU< 200 CFUQuestion 16 of 20 17. Meta-analysis is helpful in dentistry to:Decreases publication biasGuide statistical testing for clinical proceduresProvide quantitative summary measure from many studiesDefine who is at risk of diseaseQuestion 17 of 20 18. World Anti Tobacco Day is?04-07-20165/31/20161 Novemeber1st DecQuestion 18 of 20 19. Comprehensive school based dental care for whole country is adopted byUSAAustraliaNew ZealandSwedenQuestion 19 of 20 20. Double pot is method ofOzonisationFluoridationDefluoridationChlorinationQuestion 20 of 20 Loading...