#Kathmandu University | MBBS II | Paper X| Blueprint | Feb 27, 2026

Paper: X – Community Medicine

MCQs Solution (Recall Based...)

1. Pellagra occurs due to deficiency of:
A. Vitamin A
B. Vitamin C
C. Niacin
D. Thiamine
Key: C

2. A sudden outbreak due to a single contaminated meal is best described as:
A. Propagated epidemic
B. Continuous common source epidemic
C. Intermittent epidemic
D. Single exposure common source epidemic
Key: D

3. Permissible occupational noise exposure limit (8 hours) is:
A. 65 dB
B. 75 dB
C. 85 dB
D. 95 dB
Key: C

4. Disability limitation is a component of:
A. Primordial prevention
B. Primary prevention
C. Secondary prevention
D. Tertiary prevention
Key: D

5. Waste water from kitchen is termed:
A. Sewage
B. Sullage
C. Sludge
D. Effluent
Key: B

6. The best single indicator of overall development among the following is:
A. Crude birth rate
B. IMR
C. Life expectancy at 1 year
D. Sex ratio
Key: C

7. Web of causation concept was proposed by:
A. John Snow
B. MacMahon and Pugh
C. Doll and Hill
D. Bradford Hill
Key: B

8. Sullivan’s index measures:
A. Infant mortality
B. Quality of life
C. Disability-free life expectancy
D. Fertility rate
Key: C

9. Daily calorie requirement of a sedentary adult female is approximately:
A. <1600 kcal
B. <1800 kcal
C. <2000 kcal
D. <2200 kcal
Key: C

10. Shakir’s tape is used to measure:
A. Head circumference
B. Chest circumference
C. Mid-upper arm circumference
D. Waist-hip ratio
Key: C

11. Chlorine demand of water is measured using:
A. Nessler tube
B. Horrock’s apparatus
C. BOD incubator
D. Lovibond comparator
Key: B

12. Lathyrism is caused by consumption of:
A. Bengal gram
B. Khesari dal
C. Red gram
D. Soybean
Key: B

13. Tiger mosquito refers to:
A. Culex
B. Anopheles
C. Aedes
D. Mansonia
Key: C

14. Most widely used BCG vaccine strain is:
A. Tokyo 172
B. Danish 1331
C. Pasteur 1173
D. Glaxo strain
Key: B

15. Disease transmitted from vertebrate animals to humans is called:
A. Sapronosis
B. Anthroponosis
C. Zoonosis
D. Anthroponotic cycle
Key: C

16. Incidence rate is best measured in:
A. Cross-sectional study
B. Case-control study
C. Prospective cohort study
D. Ecological study
Key: C

17. A characteristic feature of chickenpox rash is:
A. Maculopapular
B. Vesicular
C. Pleomorphic
D. Purpuric
Key: C

18. Spot map is useful for studying disease distribution at:
A. Global level
B. National level
C. Regional level
D. Local level
Key: D

19. Nepal’s current demographic transition stage is:
A. High stationary
B. Early expanding
C. Late expanding
D. Low stationary
Key: C

20. Epidemic curve with a single sharp peak suggests:
A. Propagated epidemic
B. Continuous exposure
C. Common source single exposure
D. Endemic pattern
Key: C

21. APGAR score is measured on which scale?
A. Ratio
B. Interval
C. Ordinal
D. Nominal
Key: C

22. Indicator of fecal contamination of water is:
A. Streptococci
B. Coliform organisms
C. Clostridium
D. Salmonella
Key: B

23. Individual approach in health education mainly involves:
A. Mass media
B. Group discussion
C. Counselling
D. Campaign
Key: C

24. Randomization in clinical trials primarily eliminates:
A. Information bias
B. Selection bias
C. Recall bias
D. Confounding completely
Key: B

25. A suggestive thought in epidemiology is called:
A. Theory
B. Hypothesis
C. Opinion
D. Law
Key: B

26. “Bad air” theory of disease is known as:
A. Germ theory
B. Contagion theory
C. Miasma theory
D. Ecological theory
Key: C

27. Case fatality rate reflects:
A. Disease frequency
B. Survival rate
C. Killing power of disease
D. Incidence rate
Key: C

28. Vital statistics include:
A. Morbidity rate
B. Fertility rate
C. Birth and death data
D. Nutritional status
Key: C

29. Study of relationship between disease and social factors is:
A. Medical sociology
B. Social pathology
C. Epidemiology
D. Biostatistics
Key: B

30. Reliability of a measurement refers to:
A. Accuracy of measurement
B. Consistency and reproducibility of results
C. Absence of bias
D. Validity of instrument
Key: B