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Mcqs MBBS Exams India
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(Single Best Answer) Question 11: Which of the following are the features of Rubella ?
1-Rashes appear within 24 hours of onset of symptoms
2- Incubation period 2-3 weeks
3- False membrane is formed in throat
4-Post auricular lymph nodes enlarge

Select the correct answer using the code given below ?
A) 1, 2 and 4
B) 2 and 3 only
C) 1, 2 and 3 only
D) 2 and 4 only
Answer (Select an option above to get the answer):
(Single Best Answer) Question 12: With reference to historical cohort study , which of the following statements is not correct ?
A) Outcomes have occured before the start of the investigation
B) Experience of cohort is assessed from existing records
C) Duration of study is shorter as compared to current cohort study
D) Control subjects are selected from the current population without exposure
Answer (Select an option above to get the answer):
(Single Best Answer) Question 13: Specificity of a test is ?
A) (True positives *100) /(True positives +True negatives ) %
B) (True negatives *100)/(True negatives + False positives)%
C) (True negatives *100)/(True positives+True negatives)%
D) (True positives *100)/(True negatives + False positives)%
Answer (Select an option above to get the answer):
(Single Best Answer) Question 14: Which of the following is an example of live attenuated vaccine?
A) D.P.T
B) B.C.G
C) Hepatitis B
D) Typhoid (TAB)
Answer (Select an option above to get the answer):
(Single Best Answer) Question 15: Spot map in epidemiological studies refer to variation in the distribution of a disease at ?
A) International level
B) National level
C) Rural - urban level
D) Local level
Answer (Select an option above to get the answer):
(Single Best Answer) Question 16: Severity of a disease is measured by ?
A) Relative risk
B) Attributable risk
C) Incidence rate
D) Case fatality rate
Answer (Select an option above to get the answer):
(Single Best Answer) Question 17: Among the following which one is the most important determinant of infant mortality ?
A) Birth weight
B) Age of the mother
C) Order of birth
D) Internal between births
Answer (Select an option above to get the answer):
(Single Best Answer) Question 18: A rapid screening method that can be used by a paramedical worker for detecting malnutrition in pre-school (age: 1 to 5 years ) children is ?
A) Weight for age
B) Height for age
C) Mid - arm circumference
D) Weight for height
Answer (Select an option above to get the answer):
(Single Best Answer) Question 19: An outbreak of Viral Hepatitis was reported from a town between june and august of a particular year . 60% of cases occured in july. Exposure of the community to infection is from ?
A) A single source for a short period
B) A common single source for prolonged periods
C) Multiple sources for a short period
D) Multiple sources over prolonged periods
Answer (Select an option above to get the answer):
(Single Best Answer) Question 20: Which of the following insecticides is not used as a larvicide ?
A) Abate
B) Paris green
C) Fenthion
D) Dichlorvos
Answer (Select an option above to get the answer):