Chapter Sixteen – HAZARDS OF TEMPERATURE EXTREMES
TRUE OR FALSE: Place T or F in the space provided.
_____1. Heat stroke is a type of heat stress that occurs as a result of a rapid
rise in the body’s core temperature.
_____2. Heat exhaustion is a type of heat stress that occurs as a result of
water and/or salt depletion.
_____3. Profuse sweating that suddenly stops after just a few minutes is a
symptom of heat strain.
_____4. The skin serves several important purposes including the following:
protection of body tissue, sensation, secretion, excretion, and respiration.
_____5. Third-degree burns are minor and result only in a mild in)ammation
of the skin, known as erythema.
_____6. First-degree burns are classi,ed as critical burns.
_____7. Infection in a burn wound can cause septicemia.
_____8. Windchill factor is the cooling effect produced by a combination of
temperature, wind, velocity, and/or air movement.
_____9. Damage from frostbite can affect only the outer layer of the skin.
_____10. Hypothermia is the condition that results when the body’s core
temperature drops to dangerously low levels.
MULTIPLE CHOICE: Circle the letter before the correct answer.
1. Radiant heat is the result of:
A. Conduction
B. Convection
C. Electromagnetic nonionizing energy
D. Acclimatization
2. When heat gain from any source or sources is more than the body can
compensate for by sweating, the result is:
A. Internal heat gain
B. Heat stress
C. Body heat
D. Convection heat gain
3. The severity of a burn depends on several factors. The most important of
these is:
A. Age of victim
B. Location of burn
C. Amount of burned area
D. Depth to which burn penetrates
4. Critical burns are second-degree burns covering what percentage of BSA
(Body Surface Area)?
A. 10%
B. 5%
C. 15%
D. 30%
5. Which of the following is a potential harmful effect of the chemical
Methylbromide?
A. Tissue damage
B. Blisters
C. Ulceration
D. Eye burns
10. T
5. B
1. De,ne the following thermal comfort-related terms: conduction,
convection, and metabolic heat.
2. What is heat stress?
3. What is heat strain?
4. De,ne the following terms: heat exhaustion, heat cramps, heat syncope,
heat rash, work tolerance time, and moisture vapor transfer rate.
5. What are the symptoms of heat exhaustion?
6. How can heat strain be recognized?
7. How does clothing affect the cooling process?
8. What factors influence the WBGT?
9. Describe the various general controls in heat stress management.
10. How can cold stress be prevented?
11. How does wind movement affect the way the body perceives
temperature?
12. Describe the symptoms of cold stress and hypothermia.
13. Describe the various components of a cold stress prevention program.
14. Describe the various purposes served by the skin.
15. Describe and differentiate among ,rst-, second-, and third-degree burns.
16. Describe and differentiate among minor, moderate, and critical burns.
17. List the factors that determine the severity of a chemical burn.
18. Explain the hazards of chemical burns besides tissue damage.
19. What should you do if an employee accidentally splashes a caustic
chemical on himself or herself?