thermal-ohlearning

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1、W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案THERMAL1.Namethesixparametersthatneedtobetakenintoaccountwhenbalancingtheheatloadonthehumanbody.S=MW+C+R+KCEWhere:S=Storage,whichinthelongtermmustequal0M=MetabolismW=ExternalworkdoneC=ConvectionR=Radi

2、ationKc=ConductionE=Evaporation2.Whatarethecharacteristicsofthethermalenvironmentsshownbelowandwhatkindofcontrolswouldbeappropriate:热环境1.列出在平衡人体热负荷时需要考虑的六项参数。S=MW+C+R+KCE其中：S=存储，如为长期存储，该数值为0M=代谢W=已完成的外部工作C=对流R=辐射Kc=传导E=蒸发3.如下热环境具备哪些特征，采取哪种控制方式合适：Page6of

3、6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案Thereisahighradiantheatcomponentinthisenvironment.Shieldingfromtheradiantsourcewouldbethemostappropriatemethod本环境中存在高辐射热分量。辐射源屏蔽是最合适的方法。Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案Laun

4、dryenvironmentscanbehumidaswellaswarm.Inthisinstanceadehumidifiermaybeappropriate.Increasingairflowscanalsowork.洗衣房，潮湿暖和。此环境中需要增加除湿器。还需要增加气流。Workingoutsideinthemiddleeast.Thisisahotanddryenvironmentwithahighradiantcomponent.Itisnotpossibletochangetheenvir

5、onment.Thereforehavetolookatwork/restregime,fluidintake,refugeareasetc.中东户外工作。干热，高辐射分量。不可能改变环境，因此，需要有良好的工作/休息制度、液体摄取、保护区等。Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案LIGHTINGAND

6、NON-IONISINGRADIATION1.Matcheachofthefollowingwiththeappropriatewavelength.·Microwave·Visible·UltraViolet·Infrared·Radio照明与非电离辐射3.列出如下项目的波长·微波·可见辐射光·紫外线·红外线·无线电Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案Wavelength(m)TypeofRadiation波长（m）辐

7、射类型103Radio103无线电10-2Microwave10-2微波10-5Infrared10-5红外线0.5x10-6Visible0.5x10-6可见辐射光10-8UltraViolet10-8紫外线Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案Page6of6W201Day4–OvernightQuestionswithAnswersW201第4天–课后问题和答案1.Whatdoyouunderstandbythete

8、rm“Glare:Anybrightnesswithinthefieldofvisionthatcausesdiscomfort,annoyance,interferencewithvision,oreyefatigue.IONISINGRADIATION2.Whatarethemainwaysofcontrollingexposuretoionizingradiation.·Time·Distance·Shielding3.