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WX 301 CURRENT EXAM
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WX 301 CURRENT EXAM...
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WX 301 CURRENT EXAMWeather is a factor in about ___% of all aviation accidents
10
40
<10
21 - ANSWER 21
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 Thunderstorms
The 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
lower, higher
higher, higher
lower, lower - ANSWER higher, lower
If I am flying toward an area that is warmer than normal, my altimeter will read
low
True
False - ANSWER True
If my altimeter is set to 30.10 in Hg and the MSL pressure is actually 29.80 in Hg,
my actual altitude is __ than indicated
300 feet lower
30 feet higher
300 feet higher
30 feet lower - ANSWER 300 feet lower
On a very hot day, the density altitude will be __ than normal and I will need __
runway to become airborne at normal takeoff speed
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