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Showing results 411 - 420 of 969 total.
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3.3.4.0.4.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What would decrease the stability of an air mass?
A) Decrease in water vapor.
B) Cooling from below.
*C) Warming from below.
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Modified: 3/6/2004 kip
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3.3.4.0.5.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What is a characteristic of stable air?
*A) Stratiform clouds.
B) Cumulus clouds.
C) Unlimited visibility.
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Modified: 3/6/2004 kip
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3.3.4.0.6.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
Moist, stable air flowing upslope can be expected to
A) cause showers and thunderstorms.
B) develop convective turbulence.
*C) produce stratus type clouds.
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Modified: 3/6/2004 kip
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3.3.4.0.7.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
If an unstable air mass is forced upward, what type clouds can be expected?
A) Stratus clouds with little vertical development.
B) Stratus clouds with considerable associated turbulence.
*C) Clouds with considerable vertical development and associated turbulence.
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Modified: 3/6/2004 kip
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3.3.4.0.8.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What feature is associated with a temperature inversion?
A) Chinook winds on mountain slopes.
B) An unstable layer of air.
*C) A stable layer of air.
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Modified: 3/6/2004 kip
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3.3.4.0.9.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What is the approximate base of the cumulus clouds if the surface air temperature at 1,000 feet MSL is 70 °F and the dewpoint is 48 °F?
A) 4,000 feet MSL.
B) 5,000 feet MSL.
*C) 6,000 feet MSL.
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Modified: 9/6/2006 kip
Comments: 2
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3.3.4.1.0.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
At approximately what altitude above the surface would the pilot expect the base of cumuliform clouds if the surface air temperature is 82 °F and the dewpoint is 38 °F?
*A) 10,000 feet AGL.
B) 11,000 feet AGL.
C) 9,000 feet AGL.
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Modified: 3/6/2004 kip
Comments: 1
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3.3.4.1.1.A.1
PBG PBH
Knowledge Code: I25
What early morning weather observations indicate the possibility of good weather conditions for balloon flight most of the day?
A) Low moving, scattered cumulus clouds and surface winds, 5 knots or less.
*B) Overcast with stratus clouds and surface winds, 5 knots or less.
C) Clear skies and surface winds, 10 knots or less.
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Modified: 4/23/2004 kip
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3.3.4.1.2.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What are characteristics of a moist, unstable air mass?
A) Poor visibility and smooth air.
*B) Cumuliform clouds and showery precipitation.
C) Stratiform clouds and showery precipitation.
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Modified: 3/6/2004 kip
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3.3.4.1.3.A.1
PAR PGL PBG PBH PLA PRG PRH RPA RPG RPH PAT PGT PHT
Knowledge Code: I25
What are characteristics of unstable air?
*A) Turbulence and good surface visibility.
B) Nimbostratus clouds and good surface visibility.
C) Turbulence and poor surface visibility.
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Modified: 3/6/2004 kip
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