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Showing results 151 - 160 of 981 total.
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2.4.1.5.1.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I29
Why is frost considered hazardous to flight operation?
A) Frost changes the basic aerodynamic shape of the airfoil.
B) Frost decreases control effectiveness.
*C) Frost causes early airflow separation resulting in a loss of lift.
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Modified: 7/16/2004 Original Version
Comments: 4
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2.4.1.5.2.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I29
In which meteorological environment is aircraft structural icing most likely to have the highest rate of accumulation?
A) Cumulonimbus clouds.
B) High humidity and freezing temperature.
*C) Freezing rain.
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Modified: 7/16/2004 Original Version
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2.4.1.5.3.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I29
What is an operational consideration if you fly into rain which freezes on impact?
A) You have flown into an area of thunderstorms.
B) You have flown through a cold front.
*C) Temperatures are above freezing at some higher altitude.
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Modified: 7/16/2004 Original Version
Comments: 1
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2.4.1.5.4.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I20
The average height of the troposphere in the middle latitudes is
A) 25,000 feet.
*B) 37,000 feet.
C) 20,000 feet.
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Modified: 7/16/2004 Original Version
Comments: 2
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2.4.1.5.5.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I32
A jetstream is defined as wind of
A) 30 knots or greater.
B) 40 knots or greater.
*C) 50 knots or greater.
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Modified: 7/16/2004 Original Version
Comments: 2
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2.4.1.5.6.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I31
Under which condition does advection fog usually form?
*A) Moist air moving over colder ground or water.
B) Warm, moist air settling over a cool surface under no wind conditions.
C) A land breeze blowing a cold air mass over a warm water current.
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Modified: 7/16/2004 Original Version
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2.4.1.5.7.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I26
A high cloud is composed mostly of
A) condensation nuclei.
B) ozone.
*C) ice crystals.
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Modified: 7/16/2004 Original Version
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2.4.1.5.8.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I27
An air mass is a body of air that
A) creates a wind shift as it moves across the Earth's surface.
*B) covers an extensive area and has fairly uniform properties of temperature and moisture.
C) has similar cloud formations associated with it.
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Modified: 7/16/2004 Original Version
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2.4.1.5.9.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I24
What enhances the growth rate of precipitation?
*A) Upward currents.
B) Cyclonic movement.
C) Advective action.
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Modified: 7/16/2004 Original Version
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2.4.1.6.0.A.1
IRA IRH FII FIH AIF HIF IGI IFP
Knowledge Code: I30
If you fly into severe turbulence, which flight condition should you attempt to maintain?
*A) Level flight attitude.
B) Constant altitude and constant airspeed.
C) Constant airspeed (VA).
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Modified: 7/16/2004 Original Version
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