Quantity of fresh air required for a man is 1000 cubic feet of air for every____________?
Correct answer: D. 20 minutes
- A. 5 minutes
- B. 10 minutes
- C. 15 minutes
- D. 20 minutes
Explanation
The traditional ventilation standard used in such questions is about 1,000 cubic feet of fresh air per person every 20 minutes. This replaces exhaled air and helps limit the buildup of carbon dioxide indoors.
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The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.
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