FULLY SOLVED GRADED A+
⩥ Weather is a factor in about ___% of aviation fatalities
60
10
30
<10. Answer: 30
⩥ The main cause of weather-related aviation fatalities is
thunderstorms
icing
continued flight into IMC
wind and turbulence. Answer: continued flight into IMC
⩥ The leading cause of airport delays is ___
Traffic volume
Closed runways
Equipment failures
Weather. Answer: Weather
⩥ The leading cause of airport weather delays is
,Reduced visibility
Thunderstorms
Low ceilings
Gusty wind and turbulence. Answer: Thuderstorms
⩥ Average sea level pressure is about
1013 mb
14 lb per square inch
29.92 in Hg
all the above. Answer: all of the above
⩥ 500 mb is equal to __ Pa
18,000
50,000
50
5. Answer: 50,000
⩥ Which of the following does NOT occur when a column of air is
heated
the average density decreases
the number of molecules per volume decreases
pressure decreases with height at a faster rate
the air molecules move faster on average. Answer: pressure decreases
with height at a faster rate
,⩥ The height above sea level at which the pressure is 700 mb is about
10,000 ft
25,000 ft
5,000 ft
30,000 ft. Answer: 10,000 ft
⩥ The pressure at 30,000 ft is about __ mb
400
200
100
300. Answer: 300
⩥ Cooling air at constant pressure will
increase pressure
decrease pressure
decrease density
increase density. Answer: increase density
⩥ Heating a parcel or air at constant pressure will make it __ dense
than the surrounding air. The parcel will then __
more, rise
more, sink
less, sink
, less, rise. Answer: less, rise
⩥ If I heat air in a closed container the pressure inside the container
will
rise
fall
stay constant. Answer: rise
⩥ In the ISA (Standard Atmosphere), the lapse rate in the troposphere
is closest to
3ºC per 1,000 ft
-3ºC per 1,000 ft
-2ºC per 1,000 ft
2ºC per 1,000 ft. Answer: 2ºC per 1,000 ft
⩥ Pressure decreases with height faster in a __ column
cold
dry
warm
moist. Answer: cold
⩥ A warm column of air has __ than normal pressure aloft and __
than normal pressure near the surface
higher, lower