EXSS 288- Environmental Conditions Questions & Answers 100% Accurate!

4 mechanisms of heat exchange - ANSWERS-conduction (direct contact w/ surface) -convection (contact with air or water mass) -radiation (heat generated from metabolism; sun) -evaporation (evaporation) Relative humidity of ___% impairs evaporation. Relative humidity of ___% stops evaporation. - ANSWERS65 & 75 Heat Index is calculated using 3 different thermometers... - ANSWERS-Dry Bulb temp -Wet Bulb temp -Globe temp Dry bulb - ANSWERSstandard mercury thermometer Wet bulb - ANSWERSwet wick and take temp to get measure of moisture in air Globe temp - ANSWERSMeasures suns radiation with black casing around metal thermometer The average person loses ____ of water everyday. - ANSWERS2.5 liters Changes in body weight: 1 lb weight loss = _____ additional fluids during exercise - ANSWERS1 - 1.5 pints Acclimatized athletes sweat _____ and lose _____ electrolytes than non-acclimatized athletes - ANSWERSmore; less Severity scale (least to most) of heat illnesses - ANSWERS- heat syncope (fainting) - heat cramps - heat exhaustion - heat stroke & hyponatremia Heat syncope (S&S and treatment) - ANSWERSS&S: fatigue and heat overexposure causes peripheral vasodilation, pooled blood in extremities (dizziness) Treatment: move to cool environment, lay down, cold liquid consumption Heat Cramps (S&S and treatment) - ANSWERSThese are muscle spasms that occur most often in the calf and abdomen. Prevention/ treatment: stretch, drink more fluids, massage