MEA 130 Exam 3 Questions With Correct Answers

MEA 130 Exam 3 Questions With Correct
Answers
Which ||of ||the ||following ||statements ||concerning ||air ||pressure ||(p) ||is ||true? ||- ||CORRECT ||
ANSWER✔✔-it ||is ||the ||force ||exerted ||by ||the ||weight ||of ||a ||column ||of ||air ||above ||a ||given ||
point; ||delta ||p ||/ ||delta ||z ||<0; ||it ||is ||the ||least ||"sensible" ||of ||the ||six ||weather ||elements ||we've
||learned ||about.




At ||mean ||sea ||level ||(mil) ||the ||average ||barometric ||pressure ||is ||equal ||to ||1013.25? ||- ||
CORRECT ||ANSWER✔✔-millibars



The ||first ||barometer, ||which ||was ||invented ||by ||Torricelli ||in ||1643, ||is ||similar ||to ||which ||
common ||barometer ||used ||today? ||- ||CORRECT ||ANSWER✔✔-mercury



The ||stations ||pressure ||observed ||in ||Boone, ||NC ||(called ||the ||"Kilometer ||High ||City") ||is ||always
||_______ ||the ||station ||pressure ||observed ||in ||Raleigh. ||- ||CORRECT ||ANSWER✔✔-much ||less ||


than



Although ||altimeters ||actually ||measure ||_____, ||they ||are ||labeled ||to ||indicate ||________. ||- ||
CORRECT ||ANSWER✔✔-pressure, ||height



Lines ||connecting ||equal ||pressures ||on ||a ||surface ||weather ||map ||called: ||- ||CORRECT ||
ANSWER✔✔-isobars



Which ||of ||the ||following ||is ||true ||concerning ||the ||Pressure ||Gradient ||Force ||(Fpg)? ||- ||CORRECT
||ANSWER✔✔-its ||the ||force ||that ||causes ||the ||air ||to ||move ||(wind)




Which ||of ||the ||following ||are ||true ||concerning ||the ||Coriolis ||Force ||(Fco)? ||- ||CORRECT ||
ANSWER✔✔-its ||magnitude ||is ||always ||equal ||to ||zero ||at ||the ||equator; ||is ||it ||always ||directed ||
90 ||degrees ||to ||the ||right ||of ||the ||wind

, Which ||of ||the ||following ||is ||true ||concerning ||the ||Frictional ||Force ||(Ff)? ||- ||CORRECT ||
ANSWER✔✔-its ||magnitude ||is ||dependent ||upon ||the ||surface ||roughness ||of ||the ||earth



The ||Geostrophic ||Wind ||(Vg) ||represents ||a ||balance ||between ||which ||groups ||of ||forces? ||- ||
CORRECT ||ANSWER✔✔-Fco ||and ||Fpg



Buys-Ballot's ||Law ||tells ||us ||that ||if ||you ||stand ||with ||your ||back ||to ||the ||wind ||(in ||the ||Northern
||Hemisphere): ||- ||CORRECT ||ANSWER✔✔-low ||pressure ||will ||be ||on ||your ||left ||and ||high ||


pressure ||on ||your ||right



the ||average ||angle ||of ||cross ||isobar ||flow ||associated ||with ||surface ||winds ||(in ||the ||Northern ||
Hemisphere) ||is ||______, ||toward ||__________ ||pressure. ||- ||CORRECT ||ANSWER✔✔-30 ||
degrees; ||low ||pressure



At ||what ||height ||are ||official ||wind ||measurements ||made? ||- ||CORRECT ||ANSWER✔✔-10 ||
meters



Surface ||air ||___ ||the ||center ||of ||a ||cyclone, ||resulting ||in ||____ ||and ||generally ||______ ||weather.
||- ||CORRECT ||ANSWER✔✔-converges ||toward; ||rising ||air; ||inclement




The ||Occluded ||fronts ||discussed ||in ||class ||typically ||occur ||when: ||- ||CORRECT ||ANSWER✔✔-a ||
cold ||front ||overtakes ||a ||warm ||front



Which ||air ||mass ||would ||you ||expect ||to ||have ||the ||highest ||Td? ||- ||CORRECT ||ANSWER✔✔-mT



Air ||masses ||develop ||over ||regions ||of ||_______ ||geography, ||usually ||_____ ||regions ||of ||similar ||
composition ||that ||are ||conducive ||of ||the ||formation ||of ||_____ ||pressure ||- ||CORRECT ||
ANSWER✔✔-uniform; ||flat; ||high