1. Residence of three village with three different types of water supply were asked to participate in a study to identify cholera carrier. Because several cholera deaths had occurred in the recent past, virtually everyone present at the time submitted to examination. The proportion of residents in each village who were carriers was computed and compared. This study is a:

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2. In a disease process, probability of correctly identifying case of disease is

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3. An orphan population of 7-13 yrs age has been put on facto vegetarian diet, which study it was

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4. Which is not an epidemiological method of population survey

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5. Education of young children in school about the harmful effects of soft foods leading to caries is done to prevent dental caries. What is this type of prevention called

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6. According to Consumer Protection Act 1987, compensation against State consumer protection forum can be made up to

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7. Comparing means of 3 different groups or datasets is best done by using:

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8. An active carious lesion can be stopped from progression by application of which of the following:

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9. Eradication is defined as:

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10. Problem of recall bias is seen in:

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11. Recently two methods of cPAP: conventional and bubble cPAP were compared. In the conventional method, 90 out of 160 showed extubation failure while 40 out of 160 showed extubation failure in the bubble method. Which test would be the best to compare the statistical significance between the rates of extubation failure in the two tests

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12. Outlier is

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13. The best indicator of current caries susceptibility of an adult

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14. Concentration of fluoride in salt

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15. 85% of lung cancer among smokers was due to their smoking. This is an example of

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16. In a positively skewed population distribution with a long tail, which of the following is used as measure of central tendency

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17. Patient pays a stipulated amount of money towards the treatment is termed

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18. Live viral vaccine is

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19. Which of the following will cause an increase in the prevalence of disease

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20. Which of the following characteristics is not of much importance in a screening test

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