Nokea
Ergonomics is related to
- A. Economics
- B. Agriculture
- C. Engineering means to reduce occupational hazards
- D. Agricultural economics
Correct Answer: C
Rationale: Ergonomics involves engineering principles to design workspaces and tools that reduce occupational hazards.
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Preservative of sewage is called-
- A. chloroform
- B. haloform
- C. formalin
- D. all
Correct Answer: C
Rationale: Formalin is commonly used as a preservative for sewage samples.
Horizontal line drawn from 50% tick mark to plotted curve intersects at median
- A. Cumulative frequency curve
- B. Survival curve
- C. Both
- D. Neither
Correct Answer: A
Rationale: This feature describes cumulative frequency curves where the median is identified.
Which of the following data sources are best able to provide numerator data for the calculation of incidence of death by gunshot?
- A. Hospital discharge survey
- B. Autopsy or coroners' records
- C. National Health Survey
- D. Disease registries
Correct Answer: B
Rationale: Autopsy or coroner's records provide direct evidence of gunshot-related fatalities, essential for calculating incidence.
Qualitative data is not generated by
- A. Focus group discussion
- B. Observation
- C. Questionnaire
- D. Interviews
Correct Answer: C
Rationale: Qualitative data is generally not collected through structured questionnaires, which are more suited for quantitative data.
when research topic is not novel and relevant:
- A. correct it
- B. change it
- C. read more about it
- D. review articles
Correct Answer: B
Rationale: If a research topic lacks novelty and relevance, changing it is advisable.