For checking the reliability of a survey the following amount of..........percentage should be reexamined 1) 5 2) 10 3) 15 4) Whole population
Community DentistryAnswer: 4
Who postulated that water fluoridation is assciated with reduced tooth decay 1) Dean 2) Murray 3) Horowitz 4) Knutson
Community DentistryAnswer: 1
Repeated topical application of fluoride does not cause mottling because 1) Concentration of fluoride in solution is weak 2) Fluoride is neutralised by calcium of saliva 3) Fluoride is neutralised by calcium of tooth surface 4) Enamel already calcified and cannot be altered by topical application
Community DentistryAnswer: 4
Galagan"s formula is to 1) Measure the amount of fluoride in toothpaste 2) Measure the amounts of fluoride in drinking water 3) Calculate the fluoride concentration in drinking water depending on temperature of the area 4) None of the above
Community DentistryAnswer: 3
In school water fluoridation, amount of F used is 1) 0.7-1.2 ppm 2) 1.6-3 ppm 3) 3-4 ppm 4) 12 ppm
Community DentistryAnswer: 3
In autocratic system 1) Group takes the decision 2) Leader takes the decision 3) Leader takes the decision after consulting the team members 4) All of the above
Community DentistryAnswer: 2
An average of squares of amount by which individual members deviate from mean of group is 1) Variance 2) Mode 3) Measure of central tendency 4) All of the above
Community DentistryAnswer: 1
What is closed camp 1) A dental camp open for all 2) A dental camp for a preselected area like school 3) There is no such term 4) Any of the above
