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General Knowledge · Q709

Environmental Science

Competitive Exams · General Knowledge · question 709

Q709

The wind-chill factor:

A.
Relates body heat loss with wind to an equivalent temperature with no wind
Answer
B.
Indicates the temperature at which water freezes on exposed skin
C.
Takes into account humidity and air temperature in expressing the current air temperature
D.
Tells farmers when to protect crops from a freeze
E.
Determines how low the air temperature will be on any given day

Answer: Option A

Solution

Answer: Option A
Solution:
Wind-chill or windchill is the lowering of body temperature due to the passing-flow of lower-temperature air. Wind chill numbers are always lower than the air temperature for values where the formula is valid. When the apparent temperature is higher than the air temperature, the heat index is used instead.