WorksheetsChapter 6 C
Total questions: 18
Worksheet time: 3mins
Name
Class
Date
1.
Thunderstorm formation requires unstable conditions, a lifting force, and…
a)
dry air.
b)
high moisture levels.
c)
cumulus clouds.
d)
gennerally calm conditions
2.
A non-frontal band of thunderstorms that often produces the most intense weather is…
a)
cumulus thunderstorms.
b)
a squall line of thunderstorms.
c)
the lower-level thunderstorms.
d)
a frontal thunderstorm.
3.
The cumulus stage is characterized by…
a)
the negative charge of lightning.
b)
few levels of intense thunderstorms.
c)
continuous updrafts.
d)
rain.
4.
Thunderstorms reach their greates intensity during the…
a)
mature stage.
b)
cumulus stage.
c)
dissipating stage.
d)
insipient stage.
5.
A dissipating thunderstorm is characterized by…
a)
a change in the condensation nuclei.
b)
continuous updrafts.
c)
continuous downdrafts.
d)
rain.
6.
Which clouds are considered the most turbulent?
a)
Stratus clouds.
b)
Cumulus clouds.
c)
Stratonimbus clouds.
d)
Cumulonimbus clouds.
7.
Lightning is associated with…
a)
daytime storms.
b)
nighttime storms.
c)
thunderstorms.
d)
ice storms.
8.
If you encounter severe turbulence during flight…
a)
do not deviate from your altitude.
b)
do not change your airspeed.
c)
do not change your level attitude.
d)
do not not change course.
9.
Towering cumulus indicate…
a)
a low level of unstable air.
b)
a moderate chance of severe weather.
c)
the presence of convective turbulence.
d)
condesation nuclei abrasions.
10.
Wingtip vortices are created when an airplane generates lift.
a)
true
b)
false
11.
The greatest vortex strength occurs when the generating aircraft is…
a)
heavy, slow, and taxiing.
b)
heavy, slow, and clean.
c)
heavy, fast, and clean.
d)
heavy, slow, and behind you.
12.
Wingtip votices are most hazardous during …
a)
light, quartering tailwinds.
b)
strong headwinds.
c)
calm conditions.
d)
heavy, slow, and fast flight.
13.
Wingtip vortices created by large aircraft tend to…
a)
sink below the generating aircraft.
b)
rise above the generating aircraft.
c)
stay at the same altitude.
d)
shift to the upwind side.
14.
Mountain wave turbulence could be anticipated when winds of…
a)
blow down a valley slope.
b)
40kts or more, across a ridge.
c)
cumulus clouds begin to develop.
d)
usually at sunrise.
15.
The crests of mountain waves may be marked by…
a)
lenticular clouds.
b)
towering cumulus clouds.
c)
assymetric clouds.
d)
unstable clouds.
16.
Wind shear is associated with…
a)
fog and low stratus.
b)
clear air turbulence.
c)
convective trubulence.
d)
light to moderate wind.
17.
Wind shear may occur at the top of an inversion…
a)
when the wind is >25kts.
b)
when the wind is calm.
c)
when the wind is from the north.
d)
when the wind is lifting.
18.
What is necessary to form ice on the aircraft in flight?
a)
Condensation nuclei.
b)
Low-level stratus.
c)
Visible moisture.
d)
Dry air.
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