AIPGE 09 MDS Community dentistry

Community dentistry


58. In national water supply and sanitation programme a “problem village” is defined as all except
a) Distance of safe water is within 1.5 kms
b) Watertable below….kms
c) Water source has excess iron and heavy metals
d) Water infested with guinea worm
Ans: d) Distance of safe water within 1.5 Kms

59. A sampling unit refers to
a) Group of sample
b) Subset of sample
c) Every individual of a sample
d) All
Ans: c) Every individual of a sample

60. In a set of observations the relative variability
a) Coefficient of variance
b) Standard deviation
c) Standard error
d) …
Ans: a) Coefficient of variance

61. Which of the following is an example of disability limitation?
a) Reducing occurrence of polio by immunization
b) Arranging for schooling of child suffering from PRPP
c) Resting affected limbs in neutral position
d) Providing calipers for walking
Ans: c) Resting affected limbs in neutral position

62. Which of these represent a normal distribution?
a) When all data is distributed equally in a whole group
b) When mode, median and mean coincide
c) When positives are two times the negatives
d) When positives are four times the negatives
Ans: b) When mode, median and mean coincide


63. Specificity of a screening test measures
a) True positives
b) False positives
c) False negatives
d) True negatives
Ans: True negatives

64. In a study in UK, an association was found between increased sale of antiasthmatic drug and an increase in deaths due to asthma. This is an example of
a) Ecological study
b) Cohort study
c) Case reference study
d) Experimental study
Ans: a) Ecological study

65. Occupational cancer involve following organs except:
a) Lung
b) Breast
c) Bladder
d) Liver
Ans: b) Breast

66. A periodontal index is used to check the status of periodontal disease in a survey. Each tooth surface is divided into 9 parts in the index. It is
a) Navy plaque index
b) Glass index
c) Stillness and loe index
d) PHP index
Ans: a) Navy plaque index

67. Most common cause of female mortality in India during childbirth
a) Hemorrhage
b) Abortion
c) Anemia
d) Sepsis
Ans: a) Hemorrhage

68. Adjuvant used in DPT vaccine is
a) Zinc
b) Aluminum
c) Copper
d) Magnesium
Ans: b) Aluminum