Nokea
Discuss the possible health effects that have been associated with exposure to electric and magnetic fields and ionizing radiation.
- A. EMF: unclear evidence; Ionizing: cancer risk.
- B. EMF: immediate death; Ionizing: no known risks.
- C. EMF: improved sleep; Ionizing: enhanced mood.
- D. EMF: faster metabolism; Ionizing: increased energy.
Correct Answer: A
Rationale: Evidence linking EMFs to health effects is inconclusive, while ionizing radiation is a well-established carcinogen.
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Which of the following is the strength of Case control study?
- A. rare disease
- B. bias can be minimized
- C. temporal relationship can be established
- D. relative risk can be calculated
Correct Answer: A
Rationale: Case-control studies are particularly useful for studying rare diseases.
Observation checklist is the................ of data collection
- A. Tool
- B. Method
- C. Manual
- D. Guideline
Correct Answer: A
Rationale: An observation checklist serves as a tool for systematically collecting data during observations.
The denominator to calculate literacy rate is
- A. Population above 14 years
- B. Total population
- C. Population above 7 years of age
- D. Population above 10 years of age
Correct Answer: C
Rationale: Literacy rate is calculated using the population above 7 years of age, as this is the standard age group considered for educational attainment.
Accepting null hypothesis when it is false is
- A. Type I error
- B. Type II error
- C. α error
- D. µ error
Correct Answer: B
Rationale: A Type II error occurs when the null hypothesis is incorrectly accepted.
In Pneumoconiosis all are included except
- A. Asbestosis
- B. Silicosis
- C. Anthracosis
- D. Bagasosis
Correct Answer: D
Rationale: Bagasosis is not a type of pneumoconiosis; it is a respiratory condition caused by exposure to sugarcane dust.