An un-acclimatized field worker in Florida is loading orange crates into trucks outdoors on a sunny day. It is quite hot and humid with wet bulb temperature = 79°F, globe temperature = 84°F, and dry bulb temperature = 79°F. It is estimated that such work (each lift of the 30 lb box requires 0.67 kcal of energy and he loads 750 boxes/hr) requires 500 kcal/hr approximately. a) What is the WBGT? OF b) How long can he work within an hour (choose the closest option)? c) Keeping the standard crate size and weight, if the work frequency h 15 min/hr 30 min/hr 45 min/hr • (choose the nearest answer) 450 boxes/hr, then how long can he work within an hour (choose the closest option)? • (choose the nearest answer)

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An un-acclimatized field worker in Florida is loading orange crates into trucks outdoors on a sunny day. It is quite hot and humid with wet bulb temperature = 79°F, globe temperature = 84°F, and dry bulb temperature = 79°F. It is estimated that
such work (each lift of the 30 lb box requires 0.67 kcal of energy and he loads 750 boxes/hr) requires 500 kcal/hr approximately.
a) What is the WBGT?
°F
b) How long can he work within an hour (choose the closest option)?
(choose the nearest answer)
c) Keeping the standard crate size and weight, if the work frequency has been reduced to 450 boxes/hr, then how long can he work within an hour (choose the closest option)?
15 min/hr
30 min/hr
45 min/hr
60 min/hr
cannot work
◆ (choose the nearest answer)
Transcribed Image Text:An un-acclimatized field worker in Florida is loading orange crates into trucks outdoors on a sunny day. It is quite hot and humid with wet bulb temperature = 79°F, globe temperature = 84°F, and dry bulb temperature = 79°F. It is estimated that such work (each lift of the 30 lb box requires 0.67 kcal of energy and he loads 750 boxes/hr) requires 500 kcal/hr approximately. a) What is the WBGT? °F b) How long can he work within an hour (choose the closest option)? (choose the nearest answer) c) Keeping the standard crate size and weight, if the work frequency has been reduced to 450 boxes/hr, then how long can he work within an hour (choose the closest option)? 15 min/hr 30 min/hr 45 min/hr 60 min/hr cannot work ◆ (choose the nearest answer)
An un-acclimatized field worker in Florida is loading orange crates into trucks outdoors on a sunny day. It is quite hot and humid with wet bulb temperature = 79°F, globe temperature = 84°F, and dry bulb temperature = 79°F. It is estimated that
such work (each lift of the 30 lb box requires 0.67 kcal of energy and he loads 750 boxes/hr) requires 500 kcal/hr approximately.
a) What is the WBGT?
°F
b) How long can he work within an hour (choose the closest option)?
c) Keeping the standard crate size and weight, if the work frequency h
15 min/hr
30 min/hr
45 min/hr
60 min/hr
cannot work
(choose the nearest answer)
450 boxes/hr, then how long can he work within an hour (choose the closest option)?
(choose the nearest answer)
Transcribed Image Text:An un-acclimatized field worker in Florida is loading orange crates into trucks outdoors on a sunny day. It is quite hot and humid with wet bulb temperature = 79°F, globe temperature = 84°F, and dry bulb temperature = 79°F. It is estimated that such work (each lift of the 30 lb box requires 0.67 kcal of energy and he loads 750 boxes/hr) requires 500 kcal/hr approximately. a) What is the WBGT? °F b) How long can he work within an hour (choose the closest option)? c) Keeping the standard crate size and weight, if the work frequency h 15 min/hr 30 min/hr 45 min/hr 60 min/hr cannot work (choose the nearest answer) 450 boxes/hr, then how long can he work within an hour (choose the closest option)? (choose the nearest answer)
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