Question 1: Weight of an Indian reference woman is ?
A) 45 Kg
B) 50 Kg
C) 55 Kg
D) 60 Kg
Answer:
B
Question 2: Orthotolidine test is used to determine ?
A) Nitrates in water
B) Nitrites chlorine in water
C) Free and combined chlorine in water
D) Ammonia content in water
Answer:
C
Question 3: The analytical study where population is the unit of study is ?
A) Cross sectional
B) Ecological
C) Case-control
D) Cohort
Answer:
B
Question 4: An outbreak of streptococcal pharyngitis has occurred in a remote village. In order to carry out the epidemiological investigations of the outbreak it is necessary to perform the culture of the throat swab of the patients suffering from the disease. The transport media of choice would be ?
A) Salt mannitol media
B) Pike's media
C) Stuart's media
D) Cary Blair media
Answer:
B
Question 5: Which one of the following arbovirus diseases has not been reported in India ?
A) Japanese Encephilitis
B) Yellow fever
C) Chikungunya fever
D) Kyasanur Forest Disease
Answer:
B
Question 6: As compared to a routine case control study, nested case control study avoids problems (in study design) related to ?
A) Temporal association
B) Confounding bias
C) Need for long follow up
D) Randomization
Answer:
B
Question 7: To test the association between risk factor and disease, which of the following is the weakest study design ?
A) Case - control study
B) Ecological study
C) Cohort Study
D) Cross - sectional study
Answer:
B
Question 8: All of the following statements regarding Dracunculiasis are true except ?
A) India has eradicated this disease
B) Niridazole prevents transmission of the disease
C) The disease is limited to tropical and subtropical regions
D) No animal reservoir has been proved
Answer:
B
Question 9: In which of the Indian states the maximum number of AIDS cases have been reported till now ?
A) Delhi
B) Kerala
C) TamilNadu
D) Bihar
Answer:
C
Question 10: All of the following statements about mosquito are true except ?
A) It is a definitive host in malaria
B) It is a definitive host in filaria
C) Its life cycle is completed in 3 weeks
D) The female can travel upto 3 kilometers
Answer:
B
Question 11: All of the following statements about quarantine are true except ?
A) It is synonymous with isolation
B) Absolute quarantine is restriction during the incubation period
C) Exclusion of children from schools is an example of modified quarantine
D) Quarantine should not be longer than the longest incubation period
Answer:
A
Question 12: A total 5000 patients of glaucoma are identified and surveyed by patient interviews regarding family history of glaucoma. Such a study design is called ?
A) Case series report
B) Case-control study
C) Clinical Trial
D) Cohort study
Answer:
A
Question 13: In a 3 X 4 contingency table, the number of degrees of freedom equals to ?
A) 1
B) 5
C) 6
D) 12
Answer:
C
Question 14: The literacy rate of Indian Population as per Census 2001 is ?
A) 54.5%
B) 65.4%
C) 85.8%
D) 75.5%
Answer:
B
Question 15: In assessing the association between maternal nutritional status and the birth weight of the newborns, two investigators A and B studied separately and found significant results with p values 0.02 and 0.04 respectively. From this information, what can you infer about the magnitudes of association found by the two investigators ?
A) The magnitude of association found by Investigator A is more than that found by B
B) The magnitude of association found by Investigator B is more than that found by A
C) The estimates of association obtained by A and B will be equal, since both are significant
D) Nothing can be concluded as the information given is inadequate
Answer:
A
Question 16: A Cardiologist wants to study the effect of an anti-hypertensive drug. He notes down the initial systolic blood pressure (mmHg) of 50 patients and then administers the drug on them. After a week’s treatment, he measures the systolic blood pressure again. Which of the following is the most appropriate statistical test of significance to test the statistical significance of the change in blood pressure ?
A) Paired t-test
B) Unpaired or independent t-test
C) Analysis of Variance
D) Chi-square test
Answer:
Question 17: The number of malaria cases reported during the last 10 years in a town are given below; 250,320,190,300,5000,100,260,350,320& 160. The epidemiologist wants to find out the average number of malaria cases reported in that town during the last 10 years. The most appropriate measure of average for this data will be ?
A) Arithmetic mean
B) Mode
C) Median
D) Geometric mean
Answer:
Question 18: In a group of patients presenting to a hospital emergency with abdominal pain, 30% of patients have acute appendicitis, 70% of patients with appendicitis have a temperature greater than 37.5°C and 40% of patients without appendicitis have a temperature greater than 37.5°C. Considering these findings, which of the following statements is correct ?
A) The sensitivity of temperature greater than 37.5°C as a marker for appendicitis is 21/49
B) The specificity of temperature greater than 37.5°C as a marker for appendicitis is 42/70
C) The positive predictive value of temperature greater than 37.5°C as marker for appendicitis is 21/30
D) The specificity of the test will depend upon the prevalence of appendicitis in the population to which it is applied