1. Developing an answer or a solution to an already known problem or a question which can be quantified and analysed is known as:Statistical analysisHypothesis formulationAnalysis and interpretationData collectionQuestion 1 of 20 2. The proportion of the population which is included in the study sample is called asSampling fractionTarget populationReference populationSampling frameQuestion 2 of 20 3. Xylitol isCaloric sweetenerLow caloric natural sweetenerNon caloric sweetenerLow caloric artificial sweetenerQuestion 3 of 20 4. A child shows skeletal fluorosis when he is drinking water for a long time with excess fluoride level of:0.5-1 ppm3-6 ppm1.5-3 ppm1-1.5 ppmQuestion 4 of 20 5. Acceptable range of microbial load in water line of dental unit for immunocompromised patientNo specific limit300-600 CFU< 200 CFU200-400CFUQuestion 5 of 20 6. Sequence of contents in scientific report of oral health survey:Introduction, Materials and methods, result, discussionIntroduction, Aim, materials and methods, resultsReview of literature, Aim, methods and material, resultsAim, Materials and methods, result, conclusionQuestion 6 of 20 7. Concentration of fluoride in salt250ppm9Oppm225ppm275ppmQuestion 7 of 20 8. Term Colorado stain was given byKnutsonMcKayDeanGreeneQuestion 8 of 20 9. Double pot is method ofFluoridationChlorinationOzonisationDefluoridationQuestion 9 of 20 10. 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 10 of 20 11. Which of the following statements about Standard Distribution curve is true:Mean = 2 MedianMean = MedianMedian = VarianceStandard Deviation = 2 VarianceQuestion 11 of 20 12. A pregnant lady uses fluoridated drinking water. All of the following are true regarding exposure of the fetus to fluoride except:Placenta acts as a regulator and reduces the concentration of fluoride reaching the fetusPlacenta acts as a barrier to fluoride ionsPlacenta has no role in fluoride regulation to fetusPlacenta acts as a regulator and increases the concentration of fluoride reaching the fetusQuestion 12 of 20 13. Forecast of probable cause and outcome of an attack of the disease and prospects of recovery as indicated by nature of disease and symptoms of the caseDiagnosisPrognosisRiskTreatmentQuestion 13 of 20 14. Student t test - true is?Number of observation in sample is sameSD is similarSample is smallMean is similarQuestion 14 of 20 15. In Salivary reductase test, slightly conducive caries activity in represented as which colourBlueRedOrchidPinkQuestion 15 of 20 16. Recall bias is most commonly associated with which study designCross-sectional studyCohort studyRandomized controlled trialCase control studyQuestion 16 of 20 17. Common to both acute and chronic malnutrition isBMIHeight for ageWeight for heightWeight for ageQuestion 17 of 20 18. In a study every 5th house of village is selected, this isSystemic random samplingCluster samplingSimple random samplingStratified random samplingQuestion 18 of 20 19. In a positively skewed population distribution with a long tail, which of the following is used as measure of central tendencyModeMedianMeanStandard deviationQuestion 19 of 20 20. Which of the following is a commonly used laboratory disinfectant:HypochloriteCopper sulphateSoapDilute HCIQuestion 20 of 20 Loading...