Podcast
Questions and Answers
What is the freezing point of the skin?
What is the freezing point of the skin?
- 40°F (4°C)
- 30°F (1°C) (correct)
- 50°F (10°C)
- 20°F (-7°C)
What increases the risk of frostbite?
What increases the risk of frostbite?
- Direct sunlight
- Increasing wind velocity (correct)
- Decreasing air pressure
- Low humidity
Why is air movement more crucial in cold environments?
Why is air movement more crucial in cold environments?
- Because it reduces the risk of frostbite
- Because it can lead to cold stress
- Because it increases the risk of heat stroke
- Because the combined effect of wind and temperature can produce windchill (correct)
What is the result of skin tissues freezing?
What is the result of skin tissues freezing?
What is the result of the combined effect of wind and temperature in cold environments?
What is the result of the combined effect of wind and temperature in cold environments?
At what temperature can frostbite theoretically occur?
At what temperature can frostbite theoretically occur?
What is windchill a result of?
What is windchill a result of?
What is the relationship between wind velocity and heat loss?
What is the relationship between wind velocity and heat loss?
What is a hazard related to cold environments that can cause damage to skin tissue?
What is a hazard related to cold environments that can cause damage to skin tissue?
What is a condition that occurs when the body's core temperature drops?
What is a condition that occurs when the body's core temperature drops?
What is the primary factor that influences the amount of work people can do and the manner in which they do it?
What is the primary factor that influences the amount of work people can do and the manner in which they do it?
What is the term for the stress caused by cold temperatures?
What is the term for the stress caused by cold temperatures?
Which of the following is a common consequence of extreme cold temperatures?
Which of the following is a common consequence of extreme cold temperatures?
What is the term for the perceived decrease in temperature felt by the body due to wind?
What is the term for the perceived decrease in temperature felt by the body due to wind?
What is the primary risk associated with extreme cold temperatures?
What is the primary risk associated with extreme cold temperatures?
Study Notes
Physical Hazards (Cold Stress)
- Frostbite occurs when skin tissues freeze.
- Theoretically, the freezing point of skin is around 30°F (1°C).
- Wind velocity increases heat loss, causing frostbite to occur more rapidly.
- Air movement is more crucial in cold environments than in hot ones.
- Wind and temperature combine to produce windchill.
- Extremes of temperature (thermal stress) impact the amount and quality of work people can do.
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Description
Learn about the effects of cold stress, including frostbite, and how wind velocity affects heat loss and the risk of frostbite.
