1. Which of these is a parametric testT-TestMann-Whitney U TestWilcoxon signed rank TestChi-Square TestQuestion 1 of 20 2. Role of humectant in toothpastes:Retain moistureTasteAbrasiveAnti-bacterialQuestion 2 of 20 3. Term Colorado stain was given byKnutsonMcKayDeanGreeneQuestion 3 of 20 4. Fourth generation pit and fissure sealants are:High viscosity sealantsColored sealantsFluoride releasingUV light curedQuestion 4 of 20 5. Consort statement is applicable forCohort StudiesCross Sectional StudiesCare Control StudiesRandomized Controlled TrialQuestion 5 of 20 6. All of the following are true about standard error of mean except:Used to estimate confidence limitIt depends on standard deviation of meanAs the sample size increases, standard error will also increaseBased on normal distributionQuestion 6 of 20 7. All can be incinerated exceptInfectious wasteCytotoxic Waste.SharpsAnatomical wasteQuestion 7 of 20 8. Specificity of a test measures:True positivesFalse negativesFalse positivesTrue negativesQuestion 8 of 20 9. Reliability of a screening test refers to:Accurately measures what it is supposed to measureThe extent to which the observer can go in finding the resultDepends on knowledge of the observerGives same values even on repeated testingQuestion 9 of 20 10. Not true about crude birth rateNumerator does not include still births.It is actually a ratio not a rateIt is independent of age of populationIt is a measure of fertilityQuestion 10 of 20 11. Metallic taste after application of stannous fluoride varnish is due toTin hydroxy phosphateCalcium trifluorostannateStannous trifluorophosphateStannic trifluorophosphateQuestion 11 of 20 12. The avian flu H5N1 has high mortality in humans. However it has not been able to become a pandemic infection. What is the reason:Its DNA has avian characteristicsPoor man to man transmissionIt causes serious illness leading to death of the patientIt easily spreads in wild birds but not in domestic poultryQuestion 12 of 20 13. Plastic wrapper of surgical syringe should be discarded in:Yellow bagBlueRed bagBlack bagQuestion 13 of 20 14. Fish is deficient in which of the following nutrients:IodineVitamin AIronPhosphorusQuestion 14 of 20 15. In a dental clinic, auxiliary perform duties after personal diagnosis and direction of dentist and patient is sent after his clearance comes underGeneral guidance/ supervisionDirect guidance/ supervisionPersonal guidance/ supervisionIndirect guidance/ supervisionQuestion 15 of 20 16. 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 16 of 20 17. Outlier isMeasure of Central TendencySeparate entityObservation that is completely outside the normal observation range of valuesExperimental errorQuestion 17 of 20 18. Paired t test is equivalent in non parameteric testMann-Whitney TestMc Nemar's TestWilcoxon Signed TestKruskal-Wallis TestQuestion 18 of 20 19. Study done on a group of patients showed coefficient of variance for BP and serum creatinine to be 20% & 15% respectively. Inference is that:Standard deviation of creatinine is more than of BP.Variation in BP is more than in serum creatinine.Standard deviation of BP is more than of creatinineVariation in serum creatinine is more than in BPQuestion 19 of 20 20. A test has high false positive rate in a community. True isHigh specificityHigh prevalenceHigh sensitivityLow prevalenceQuestion 20 of 20 Loading...