_{DEA3500 Practice Preliminary 1 answers}

 

_{T=TRUE, F=FALSE}

 

_{1a             T}

_{1b             F}

_{1c             T}

_{1d             F}

 

_{2a             T}

_{2b             T}

_{2c             F}

_{2d             T}

_{3a             F}

_{3b             T}

_{3c             T}

_{3d             F}

 

_{4a             T}

_{4b             F}

_{4c             T}

_{4d             F}

 

_{5a             air temperature}

_{5b             relative humidity}

_{5c             activity}

_{5d             clothing insulation}

 

_{6a PPD = predicted percent dissatisfied}

_{6b PMV = predicted mean vote}

 

_{7a ET = effective temperature}

_{7b RH = relative humidity}

_{7c MCE = modular comfort envelope}

 

_{8a W = work}

_{8b E = evaporation}

_{8c C = convection}

_{8d L = warming/wetting of air through inhalation/exhalation}

_{9a clo}

_{9b met}

_{9c percent}

_{9d feet per minute}

 

_{10a 98.6ºF}

_{10b 32ºF}

_{10c –40ºC}

_{10d 25ºC}

 

_{11a core}

_{11b shell}

 

_{12 D}

 

_{13a UCT = point at which sweating starts}

_{13b LCT = point at which shivering starts}

_{13c TRZ = zone between peak heat production and peak seating}

_{13d evaporative heat loss = heat loss through moisture evaporation from the body}

 

_{14a F}

_{14b T}

_{14c F}

_{14d t}

 

_{15a F}

_{15b T}

_{15c F}

_{15d T}

 

_{16a T}

_{16b F}

_{16c F}

_{16d F}

 

_{17a natural convection is air movement past the body because the body warms the air which makes it rise}

_{17b stack effect = natural convection air movement past the body}

_{17c forced convection = forced air movement past the body}

_{17d bellows effect = air movement past the body from clothing movement}

 

_{18a F}

_{18b F}

_{18c F}

_{18d T}

_{18E T}

_{18F T}

 

_{19a F}

_{19b T}

_{19c F}

_{19d F}

 

_{20a T}

_{20b F}

_{20c T}

_{20d F}

_{20e T}

_{20f F}

 

_{21 B}

 

_{22 A}

 

_{23 D}

 

_{24a T}

_{24b T}

_{24c F}

_{24d F}

_{24e F}

_{24f F}

 

_{25a Y}

_{25b Y}

_{25c Y}

_{25d Y}

_{25e Y}

_{25f Y}

_{25g N}

_{25h Y}

_{25i N}

_{25j N}

_{25k Y}

_{2Kl Y}
 

_{26a nose}

_{26b bronchi}

_{26c alveoli}

 

_{27a T}

_{27b F}

_{27c F}

_{27d F}

_{27e F}

_{27f T}

 

_{28a T}

_{28b F}

_{28c T}

_{28d F}

_{28e F}

_{28f T}

 

_{29a F}

_{29b F}

_{29c F}

_{29d T}

_29eT

_{29f F}