1. A Dental health survey in a community helps to establish what type of needs of the population:Normative needsPerceived needsFelt needsExpressed needsQuestion 1 of 20 2. 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 barrier to fluoride ionsPlacenta acts as a regulator and increases the concentration of fluoride reaching the fetusPlacenta has no role in fluoride regulation to fetusPlacenta acts as a regulator and reduces the concentration of fluoride reaching the fetusQuestion 2 of 20 3. Comprehensive school based dental care for whole country is adopted bySwedenNew ZealandAustraliaUSAQuestion 3 of 20 4. In statistics, sample represents:Represent each memberSubset of sampleArithmetic unit used like Kg, gmGroup of samplesQuestion 4 of 20 5. The best graphic representation of frequency distribution of data gathered of a continuous variable is:Multiple barHistogramLine diagramSimple bar graphQuestion 5 of 20 6. According to Dunning classification, the screening procedure only using tongue depressor and available illumination inspection in school children and to identify the treatment needsType 2Type 1Type 3Type 4Question 6 of 20 7. All of the following are true about cluster sampling except:The sample size may vary according to study designSamples are similar to those in Simple Random SamplingIs a Rapid and simple methodIt is a type of probability sampleQuestion 7 of 20 8. Highest amount of saturated fatty acid is seen inPalm oilSunflower oilGroundnut oilSoyabean oilQuestion 8 of 20 9. Choking off mechanism takes place after topical application ofAPFSnF2NaFSodium monofluorophosphateQuestion 9 of 20 10. Eradication is defined as:Termination of all man to man transmission of agentTreatment of all patients with the diseaseInterruption of transmission of diseaseCessation of disease progression in a local geographical areaQuestion 10 of 20 11. 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.Standard deviation of BP is more than of creatinineVariation in serum creatinine is more than in BPVariation in BP is more than in serum creatinine.Question 11 of 20 12. In a study done for the evaluation of prevalence of caries in a given population, the ratio of its standard deviation to the mean of data is calledStandard variationStandard error of meanCoefficient of varianceCoefficient of skewnessQuestion 12 of 20 13. The no. of death due to oral carcinoma divided by mid-year population?Crude death rateProportional death rateSpecific death rateCase fatality rateQuestion 13 of 20 14. Which of the following exposure carries the maximum risk of transmission of HIV?Sexual IntercourseTraits- placentalBlood TransfusionNeedle prickQuestion 14 of 20 15. Which of the following statements about Standard Distribution curve is true:Standard Deviation = 2 VarianceMean = MedianMedian = VarianceMean = 2 MedianQuestion 15 of 20 16. Recall bias is most commonly associated with which study designRandomized controlled trialCase control studyCross-sectional studyCohort studyQuestion 16 of 20 17. Ideal requirement of pit and fissure sealant isLess volatilityThermal conductivity is higher than toothModerate water solubility and dissolutionAdequate working timeQuestion 17 of 20 18. n-3 PUFA is present in all except:Mustard oilCorn oilGroundnut oilFish oilQuestion 18 of 20 19. In an epidemiological study, the first case which comes to the attention of the investigator isIndex caseSecondary casePrimary caseReference caseQuestion 19 of 20 20. Method commonly used to represent variations around mean:Standard deviationPercentileStandard errorRangeQuestion 20 of 20 Loading...
