1/308
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
If an airplane is loaded to the rear of its CG range, it will tend to be unstable about its
lateral axis
To increase the rate of turn and at the same time decrease the radius, a pilot should
Increase the bank and decrease the stall speed
On a wing, the force of lift acts perpendicular to and the force of drag acts parallel to the
flight path
An aircraft wing is designed to produce lift resulting from a difference in
Higher air pressure below the wings surface and lower air pressure above the wings surface
Airplane wing loading during a level coordinated turn in smooth air depends upon the
Angle of bank
To generate the same amount of lift as altitude is increased, an airplane must be flown at
A higher true airspeed for any given angle of attack
When transitioning from straight and level flight to a constant airspeed climb, the angle of attack and lift
Are momentarily increased and lift returns to a steady state during the climb
Which is correct with respect to rate and radius of a turn for an airplane flown in a coordinated turn at a constant altitude
For a specific angle of bank and airspeed, the rate and radius of turn will not vary.
Which is true regarding the forces acting on an aircraft in a steady state descent? The sum of all
Forward forces is equal to the sum of all rearward forces
Longitudinal stability involves the motion of the airplane controlled by its
elevator
What is the best indicator to the pilot of the load factor on the airplane?
How firmly the pilot is pressed into the seat during an maneuver
Choose the correct statement regarding wake turbulence
The primary hazard is loss of control because of induced roll
An aircraft airfoil is designed to produce lift resulting from a difference in the
higher air pressure below the airfoil's surface and lower air pressure above the airfoil's surface.
While maintaining a constant angle of bank and altitude in a coordinated turn, an increase in airspeed will
Decrease the rate of turn resulting in no change in load factor
In a rapid recovery from a dive, the effects of load factor would cause the stall speed to
increase
What performance is characteristic of flight at maximum lift/drag ratio in a propeller-driven airplane? Maximum
Range and maximum distance glide
(Refer to Figure 3.) If an airplane glides at an angle of attack of 10°, how much altitude will lose in 1 mile?
480 feet
In theory, if the angle of attack and other factors remain constant and the airspeed is doubled, the lift produced at the higher speed will be
four times greater than at the lower speed.
Load factor is the lift generated by the wings of an aircraft at any given time
Divided by the total weight of the aircraft
Why is it necessary to increase back elevator pressure to maintain altitude during a turn? To compensate for the
Loss of the vertical component of lift
The angle of attack of a wing directly controls the
Distribution of pressures acting on the wing
Lift on a wing is most properly defined as the
Force acting perpendicular to the relative wind
A load factor of 1.2 means that the total load on an aircrafts structure is 1.2 times its
Gross weight
If the airspeed is decreased from 98 knots to 85 knots during a coordinated level 45 degree banked turn, the load factor will
Remain the same, but the radius of the turn will decrease
What is the stall speed of an airplane under a load factor of 2.5 Gs if the unaccelerated stall speed is 60 knots?
96 knots
One of the main functions of flaps during the approach and landing is to
provide the same amount of life at a slower airspeed
While holding the angle of bank constant in a level turn, if the rate of turn is varied the load factor would
Remain constant regardless of air density and the resultant lift vector
If the airspeed is increased from 89 knots to 98 knots during a coordinated level 45° banked turn, the load factor will
Remain the same, but the radius of turn will increase
If the airplane attitude remains in a new position after the elevator control is pressed forward and released, the airplane displays
Neutral longitudinal static stability
( Refer to Figure 4. ) What is the stall speed of an airplane under a load factor of 2 Gs if the unaccelerated stall speed is 60 knots?
84 knots
If the same angle of attack is maintained in ground effect as when out of ground effect, lift will
Increase, and induced drag will increase
Stall speed is affected by
Weight, load factor, and power
Which statement is true, regarding the opposing forces acting on an airplane in steady-state level flight?
These forces are equal
As the angle of bank is increased, the vertical component of lift
Decreases and the horizontal component of lift increases
( Refer to Figure 3. ) How much altitude will this airplane lose in 3 statute miles of gliding at an angle of attack of 8°?
1,320 feet
To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the
Vertical component of lift
( Refer to Figure 1. ) At the airspeed represented by point A, in steady flight, the airplane will
Have it's maximum L/D ratio
To maintain a standard rate turn as the airspeed increases, the bank angle of the aircraft will need to
Increase
In theory, if the airspeed of an aircraft in level flight is cut in half while in level flight, parasite drag will become
One-fourth as much
A propeller rotating clockwise as seen from the rear, creates a spiraling slipstream. The spiraling slipstream, along with torque effect, tends to rotate the airplane to the
Left around the vertical axis, and to the right around the longitudinal axis
Which maximum range factor decreases as weight decreases?
Airspeed
( Refer to Figure 2. ) Select the correct statement regarding stall speeds
Power-on stalls occur at lower airspeeds in shallower banks
Which statement is true relative to changing angle of attack?
An increase in angle of attack will increase drag
To produce the same lift while in ground effect as when out of ground effect, the airplane requires
A lower angle of attack
If an airspeed is increased during a level turn, what action would be necessary to maintain altitude? The angle of attack
Must be decreased or angle of bank increased
As airspeed decreases in level flight below that speed for maximum lift/drag ratio, total drag of an airplane
Increases because of increased induced drag
Longitudinal dynamic instability in an airplane can be identified by
Pitch oscillations becoming progressively steeper
Which is true regarding the force of lift in steady, unaccelerated flight?
There is corresponding indicated airspeed required for every angle of attack to generate sufficient lift and maintain altitude
( Refer to Figure 2. ) Select the correct statement regarding stall speeds. The airplane will stall
10 knots higher in a power-on 60° bank with gear and flaps up than with gear and flaps down
In small airplanes, normal recovery from spins may become difficult if the
CG is too far rearward and rotation is around the CG
The ratio between the total airload imposed on the wing and the gross weight of an aircraft in flight is known as
Load factor and directly affects stall speed
Which is true regarding the use of flaps during level turns?
The raising of flaps increases the stall speed
To hold an airplane in level flight at airspeeds from very slow to very fast, a pilot must coordinate thrust and
Angle of attack
If the airplane attitude initially tends to return to its original position after the elevator control is pressed forward and released, the airplane displays
Positive static stability
For a given angle of bank, in any airplane, the load factor imposed in a coordinated constant-altitude turn
Is constant and the stall speed increases
An airplane leaving ground effect will
Experience a reduction in ground friction and requires a slight power reduction
If the airspeed is increased from 90 knots to 135 knots during a level 60° banked turn, the load factor will
Remain the same but the radius of the turn will increase
The angle of attack at which a wing stalls remains constant regardless of
Weight, dynamic pressure, bank angle, or pitch attitude
An airplane will stall at the same
Angle of attack regardless of the attitude with relation to the horizon
What changes in airplane longitudinal control must be made to maintain altitude while the airspeed is being decreased
Decrease the angle of attack to compensate for the increasing drag
While executing a 60 degree level turn, your aircraft is at a load factor of 2.0. What does this mean
The total load on the aircrafts structure is two times it's weight..
In theory, if the airspeed of an airplane is doubled while in level flight, parasites drag will become
Four times greater
A sweptwing airplane with weak static directional stability and increased dihedral causes an increase in
Dutch roll tendency
( Refer to Figure 3. ) Th L/D ratio at a 2° angle of attack is approximately the same as the L/D ratio for a
16.5° angle of attack
With respect to advection fog, which statement is true?
It can appear suddenly during day or night, and it is more persistent than radiation fog
Convective currents are most active on warm summer afternoons when winds are
Light
Which in-flight hazard is most commonly associated with warm fronts?
Precipitation induced fog
One of the most dangerous features of mountain waves is the turbulent areas in and
below rotor clouds
In what ways do advection fog, radiation fog, and steam fog differ in their formation or location?
Radiation fog is restricted to land areas; advection fog is most common along coastal areas; steam fog forms over a water surface
Which is true regarding high- or low-pressure systems?
A low pressure area or trough is an area of rising air
Which is true with respect to high- or low-pressure system?
A high-pressure area or Ridge is an area of descending area?
What is the approximate base of the cumulus clouds if the temperature at 2,000 feet MSL is 10°C and the dew point is 1°C?
6,000 feet MSL
Which is conditions are favorable for the formation of a surface based temperature inversion?
Clear, cool nights with calm or light wind
What feature is normally associated with the cumulus stage of a thunderstorm?
Continuous updraft
There is a high pressure system that is located south of your planned route in the Northern Hemisphere on a west to east cross country flight. To take advantage of favorable winds, you would plan your route
On the northern side of a high pressure area
Fog produced by frontal activity is a result of saturation due to
evaporation of precipitation
What are the characteristics of an unstable atmosphere?
A warm, humid air mass
Which is true regarding a cold front occlusion? The air ahead of the warm front
Is warmer than the air behind the overtaking cold front
What determines the strict or type of clouds which will firm as a result of air being forced to ascend?
The stability of the air before lifting occurs
When flying low over hilly terrain, ridges, or mountain ranges, the greatest potential danger from turbulent air currents will usually be encountered on the
leeward side when flying into the wind
Ice pellets encountered during flight normally are evidence that
a warm front is about to pass
When flying into a low pressure area in the Northern Hemisphere, the wind direction and velocity will be from the
Left and increasing
Which combination of weather producing variables would likely result in cumuliform type clouds, good visibility, and showery rain?
Unstable, moist air, and orographic lifting
Why does the wind have a tendency to flow parallel to the isobars above the friction level?
Coriolis force tends to counterbalance the horizontal pressure gradient
The general circulation of air associated with high pressure area in the Northern Hemisphere is
outward, downward, and clockwise
Which would increase the stability of an air mass?
cooling from below
A common location of clear air turbulence is
In an upper trough on the polar side of a jet stream
Which situation would most likely result in freezing precipitation? Rain falling from air which has a temperature of
More than 32°F into air having a temperature of 32°F or less
What prevents air from flowing directly from high pressure areas to low pressure areas?
Coriolis force
During departure, under conditions of suspected low-level wind shear, a sudden decrease in headwind will cause
a loss in airspeed equal to the decrease in wind velocity
The conditions most favorable to wave formation over mountainous areas are a layer of
stable air at mountaintop altitude and a wind of at least 20 knots blowing across the ridge
The strength and location of the jet stream is normally
weaker and farther north in the summer
Which is true regarding actual air temperature and dew point temperature spread? The temperature spread
decreases as the relative humidity increases
Which characteristics of a cold air mass moving over a warm surface?
Cumuliform clouds, turbulence, and good visibility
Which type of jetstream can be expected to cause the greater turbulence?
A curving jetstream associated with a deep low pressure trough
The low level wind shear Alert System (LLWAS) provides wind data and software process to detect the presence of a
Change in wind direction and or speed within a very short distance above the airport
A situation most conducive to the formation of advection fog is
an air mass moving inland from the coastline during the winter
Moisture is added to air by
evaporation or sublimation
Refer to the excerpt from the following METAR report: KTUS... 08004KT 4SM HZ... 26/04 A2995 RMK RAE36
At approximately what altitude AGL should bases of convective cumuliform clouds be expected?
8,800 feet
Which is true regarding the use of airborne weather avoidance radar for the recognition of certain weather conditions?
The radar scope provides no assurance of avoiding instrument weather conditions