CPAER Meteorology Exam Questions with Correct Answers
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Course
CPAER Meteorology
Institution
CPAER Meteorology
CPAER Meteorology Exam Questions with Correct Answers
What is the primary driver of weather? - Answer-Uneven heating of the surface of the earth
In a standard atmosphere the environmental lapse rate is - Answer-2º per 1,000ft
The dry adiabatic lapse rate is - Answer-3º per 1,000ft
T...
CPAER Meteorology Exam Questions with Correct Answers What is the primary driver of weather? - Answer -Uneven heating of the surface of the earth In a standard atmosphere the environmental lapse rate is - Answer -2º per 1,000ft The dry adiabatic lapse rate is - Answer -3º per 1,000ft The wet adiabatic lapse rate is - Answer -1.5º per 1,000ft A stable atmosphere occurs when the environmental lapse rate is - Answer -Shallow or negative An unstable atmosphere occurs when the environmental lapse rate is - Answer -Steeper than both the wet and dry adiabatic lapse rates A potentially unstable atmosphere occurs when the environmental lapse rate is - Answer -Somewhere between the dry an wet adiabatic lapse rates ISA - Answer -15º and pressure at sea level of 29.92" (1013.2hpa) The average height of the tropopause is - Answer -36,000ft For every 1,000ft climbed, mercury drops approximately - Answer -1" Relative humidity - Answer -The amount of water in the air relative to the maximum it can hold at given temperature and pressure Dewpoint - Answer -The temperature at which condensation begins Is humid air or dry air more dense? - Answer -Dry air Convection - Answer -Vertical movement of air Advection - Answer -Horizontal movement of air Deposition - Answer -When gas changes *directly* to a solid Isobars - Answer -Lines of constant/equal pressure Isotachs - Answer -Lines of constant/equal wind velocity Contour lines - Answer -Lines where the altitude at which a specified pressure occurs is constant Cloudy/rainy weather is associated with - Answer -Low pressure system (ascending air) Which way does air circulate in a low pressure system? - Answer -Counter -clockwise Warm/sunny weather is associated with - Answer -High pressure system (descending air) If you stand with your back to the wind in the northern hemisphere, the low will be on your - Answer -Left Below 3,000ft wind typically blows isobars - Answer -Across Squall (wind) - Answer -Rapid increase in wind speed lasting for a minute or longer Downburst - Answer -Strong localized downdraft from a thunderstorm Microburst - Answer -Downburst lasting less than 5 minutes with horizontal extent of 2nm or less Macroburst - Answer -Downburst lasting between 5 -20 minutes with horizontal extent of 2nm or more Clouds are formed when - Answer -Air containing moisture is cooled to saturation resulting in the water condensing as liquid droplets or ice c rystals High cloud - Answer -Base above 20,000ft (Cirrus, Cirrostratus, cirrocumulus) Middle cloud - Answer -Base between 6,500ft and 20,000ft (altostratus, altocumulus, altocumulus castellanos) Low cloud - Answer -Base below 6,500ft (Stratus, nimbostratus, fractostratus, cumulus) What are clouds of vertical development? - Answer -Cumulus clouds that grow vertically into towering cumulus or cumulonimbus Few clouds cover - Answer -0.1 to 2/8ths of the sky
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