POF 2

84問 • 1年前

Via

通報

問題一覧

Accelerating past critical Mach may result in the onset of compressibility effects such as

control difficulties.

On a wing, the force of lift acts perpendicular to, and the force of drag acts parallel to the

flightpath.

The rate of turn at any airspeed is dependent upon

the horizontal lift component.

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.

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 a maneuver.

The angle of attack for a propeller is defined as

The angle between the propeller chord line and the relative wind.

Which statement is true, regarding the opposing forces acting on an airplane in steady-state level flight?

These forces are equal.

An airplane will stall at the same

angle of attack regardless of the attitude with relation to the horizon.

Longitudinal dynamic instability in an airplane can be identified by

pitch oscillations becoming progressively steeper.

The tendency toward Dutch roll occurs with which type of wing and why?

A sweepback wing having weak directional stability and increased dihedral.

The need to slow an aircraft below VA is brought about by the following weather phenomenon:

Turbulence which causes an increase in stall speed.

Which statement is true relative to changing angle of attack?

An increase in angle of attack will increase drag.

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.

What is the result of a shock-induced separation of airflow occurring symmetrically near the wing root of a sweptwing aircraft?

A severe moment or "Mach tuck."

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.

Load factor is the lift generated by the wings of an aircraft at any given time

divided by the total weight of the aircraft.

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.

One of the main functions of flaps during the approach and landing is to

provide the same amount of lift at a slower airspeed.

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.

An aircraft wing is designed to produce lift resulting from

positive air pressure below the wing's surface and negative air pressure above the wing's surface.

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.

To produce the same lift while in ground effect as when out of ground effect, the airplane requires

a lower angle of attack.

A rectangular wing, as compared to other wing planforms, has a tendency to stall first at the

wing root, with the stall progression toward the wing tip.

Frost covering the upper surface of an airplane wing usually will cause

the airplane to stall at an angle of attack that is lower than normal.

A propeller rotating clockwise as seen from the rear, creates a spiraling slipstream. The spiraling slipstream tends to rotate the aircraft ...

left around the vertical axis, and to the left around the longitudinal axis.

On which wing planform does the stall begin at the wingtip and progress inward toward the wing root?

Sweepback wing.

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.

Which is true regarding the use of flaps during level turns?

The raising of flaps increases the stall speed.

Which maximum range factor decreases as weight decreases?

Airspeed

As the angle of bank is increased, the vertical component of lift

decreases and the sink rate increases.

A wing with a very high aspect ratio (in comparison with a low aspect ratio wing) will have

a low stall speed.

If the same angle of attack is maintained in ground effect as when out of ground effect, lift will

increase, and induced drag will decrease.

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.

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.

What could be one result of exceeding critical Mach number?

Aircraft control difficulties.

As the angle of bank is increased, the vertical component of lift

decreases and the horizontal component of lift increases.

Which is correct with respect to rate and radius of 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 the correct symbol for the stalling speed or the minimum steady flight speed at which the airplane is controllable?

VS.

On which wing planform does the stall begin at the wing root and progress outward toward the wingtip?

Sweepback wing.

To hold an airplane in level flight at airspeeds from very slow to very fast, a pilot must coordinate thrust and

angle of attack.

For airplanes with relatively low thrust to weight ratios, a 10% increase in takeoff gross weight would result in a takeoff distance increase of approximately

25 to 30% or more.

A propeller rotating clockwise, as seen from the rear, creates a spiraling slipstream that tends to rotate the aircraft to the

left around the vertical axis, and to the left around the longitudinal axis.

Recovery from a stall in any airplane becomes more difficult when its

center of gravity moves aft.

The angle of attack at which a wing stalls remains constant regardless of

weight, dynamic pressure, bank angle, or pitch attitude.

To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the

vertical component of lift.

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.

Maximum structural cruising speed is the maximum speed at which an airplane can be operated during

normal operations.

Stall speed is affected by

weight, load factor, and power.

If an airplane is loaded to the rear of its CG range, it will tend to be unstable about its

lateral axis.

If the airplane attitude remains in a new position after the elevator control is pressed

neutral longitudinal static stability.

The angle of attack of a wing directly controls the

distribution of pressures acting on the wing.

Airplane wing loading during a level coordinated turn in smooth air depends upon the

angle of bank.

The stalling speed of an airplane is most affected by

variations in airplane loading.

What type of stability does the horizontal stabilizer provide during flight?

Longitudinal.

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.

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 turn will increase.

If 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.

An airplane leaving ground effect will

experience an increase in induced drag and require more thrust.

Which is the correct symbol for the stalling speed or the minimum steady flight speed in a specified configuration?

VS1.

A sweptwing airplane with weak static directional stability and increased dihedral causes an increase in

Dutch roll tendency.

A rectangular wing, as compared to other wing planforms, has a tendency to stall first at the

wing root providing adequate stall warning

The ratio of an airplane's true airspeed to the speed of sound in the same atmospheric conditions is

mach number.

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.

By changing the angle of attack of a wing, the pilot can control the airplane's

lift, airspeed, and drag.

Lift on a wing is most properly defined as the

force acting perpendicular to the relative wind.

To maintain a standard rate turn as the airspeed increases, the bank angle of the aircraft will need to

increase.

The critical angle of attack is exceeded when

A stall occurs.

What changes in airplane longitudinal control must be made to maintain altitude while the airspeed is being decreased?

Increase the angle of attack to compensate for the decreasing lift.

Which is true regarding the force of lift in steady, unaccelerated flight?

There is a corresponding indicated airspeed required for every angle of attack to generate sufficient lift to maintain altitude.

Which is a purpose of ground spoilers?

Reduce the wings' lift upon landing.

In small airplanes, normal recovery from spins may become difficult if the

CG is too far rearward, and rotation is around the CG.

For which purpose may flight spoilers be used?

Reduce the wings' lift upon landing.

The primary reason the angle of attack must be increased, to maintain a constant altitude during a coordinated turn, is because the

vertical component of lift has decreased as the result of the bank.

In theory, if the airspeed of an aircraft is cut in half while in level flight, parasite drag will become

one-fourth as much.

Longitudinal stability involves the motion of the airplane controlled by its

elevator.

When flying from one airport to another with calm wind, the airspeed closest to the ground speed will be

True Airspeed (TAS).

If the airspeed is decreased from 98 knots to 85 knots during a coordinated level 45° banked turn, the load factor will

remain the same, but the radius of turn will decrease.

What is a purpose of flight spoilers?

Increase the rate of descent without increasing airspeed.

In theory, if the airspeed of an airplane is doubled while in level flight, parasite drag will become

four times greater.

Airflow from two adjacent surfaces that merge and contain eddy currents, turbulence or restrict airflow is called

interference drag.

While executing a 60° level turn, your aircraft is at a load factor of 2.0. What does this mean?

The total load on the aircraft's structure is two times its weight.

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.

In a rapid recovery from a dive, the effects of load factor would cause the stall speed to

increase.

Structural damage or failure is more likely to occur in smooth air at speeds above

VNE.

CPL HUMAN PERFORMANCE AND LIMITATIONS (1)

Via · 78問 · 1年前

CPL HUMAN PERFORMANCE AND LIMITATIONS (1)

78問 • 1年前

Via

CPL HUMAN PERFORMANCE AND LIMITATIONS (2)

Via · 81問 · 1年前

CPL HUMAN PERFORMANCE AND LIMITATIONS (2)

81問 • 1年前

Via

CPL Radio Telephony (1)

Via · 100問 · 1年前

CPL Radio Telephony (1)

100問 • 1年前

Via

CPL Radio Telephony (2)

Via · 100問 · 1年前

CPL Radio Telephony (2)

100問 • 1年前

Via

CPL Radio Telephony (3)

Via · 20問 · 1年前

CPL Radio Telephony (3)

Met 1

Met 1

Met 2

Met 2

Met 3

Met 3

Met 4

Met 4

Met 5

Met 5

Met 6

Met 6

Met 7

Met 7

Met 8

Met 8

Human Performance 3

Human Performance 3

Met 9

Met 9

Met 10

Met 10

AGK 1

AGK 1

AGK 2

AGK 2

AGK 3

AGK 3

問題一覧

Accelerating past critical Mach may result in the onset of compressibility effects such as

control difficulties.

On a wing, the force of lift acts perpendicular to, and the force of drag acts parallel to the

flightpath.

The rate of turn at any airspeed is dependent upon

the horizontal lift component.

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.

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 a maneuver.

The angle of attack for a propeller is defined as

The angle between the propeller chord line and the relative wind.

Which statement is true, regarding the opposing forces acting on an airplane in steady-state level flight?

These forces are equal.

An airplane will stall at the same

angle of attack regardless of the attitude with relation to the horizon.

Longitudinal dynamic instability in an airplane can be identified by

pitch oscillations becoming progressively steeper.

The tendency toward Dutch roll occurs with which type of wing and why?

A sweepback wing having weak directional stability and increased dihedral.

The need to slow an aircraft below VA is brought about by the following weather phenomenon:

Turbulence which causes an increase in stall speed.

Which statement is true relative to changing angle of attack?

An increase in angle of attack will increase drag.

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.

What is the result of a shock-induced separation of airflow occurring symmetrically near the wing root of a sweptwing aircraft?

A severe moment or "Mach tuck."

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.

Load factor is the lift generated by the wings of an aircraft at any given time

divided by the total weight of the aircraft.

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.

One of the main functions of flaps during the approach and landing is to

provide the same amount of lift at a slower airspeed.

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.

An aircraft wing is designed to produce lift resulting from

positive air pressure below the wing's surface and negative air pressure above the wing's surface.

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.

To produce the same lift while in ground effect as when out of ground effect, the airplane requires

a lower angle of attack.

A rectangular wing, as compared to other wing planforms, has a tendency to stall first at the

wing root, with the stall progression toward the wing tip.

Frost covering the upper surface of an airplane wing usually will cause

the airplane to stall at an angle of attack that is lower than normal.

A propeller rotating clockwise as seen from the rear, creates a spiraling slipstream. The spiraling slipstream tends to rotate the aircraft ...

left around the vertical axis, and to the left around the longitudinal axis.

On which wing planform does the stall begin at the wingtip and progress inward toward the wing root?

Sweepback wing.

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.

Which is true regarding the use of flaps during level turns?

The raising of flaps increases the stall speed.

Which maximum range factor decreases as weight decreases?

Airspeed

As the angle of bank is increased, the vertical component of lift

decreases and the sink rate increases.

A wing with a very high aspect ratio (in comparison with a low aspect ratio wing) will have

a low stall speed.

If the same angle of attack is maintained in ground effect as when out of ground effect, lift will

increase, and induced drag will decrease.

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.

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.

What could be one result of exceeding critical Mach number?

Aircraft control difficulties.

As the angle of bank is increased, the vertical component of lift

decreases and the horizontal component of lift increases.

Which is correct with respect to rate and radius of 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 the correct symbol for the stalling speed or the minimum steady flight speed at which the airplane is controllable?

VS.

On which wing planform does the stall begin at the wing root and progress outward toward the wingtip?

Sweepback wing.

To hold an airplane in level flight at airspeeds from very slow to very fast, a pilot must coordinate thrust and

angle of attack.

For airplanes with relatively low thrust to weight ratios, a 10% increase in takeoff gross weight would result in a takeoff distance increase of approximately

25 to 30% or more.

A propeller rotating clockwise, as seen from the rear, creates a spiraling slipstream that tends to rotate the aircraft to the

left around the vertical axis, and to the left around the longitudinal axis.

Recovery from a stall in any airplane becomes more difficult when its

center of gravity moves aft.

The angle of attack at which a wing stalls remains constant regardless of

weight, dynamic pressure, bank angle, or pitch attitude.

To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in the

vertical component of lift.

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.

Maximum structural cruising speed is the maximum speed at which an airplane can be operated during

normal operations.

Stall speed is affected by

weight, load factor, and power.

If an airplane is loaded to the rear of its CG range, it will tend to be unstable about its

lateral axis.

If the airplane attitude remains in a new position after the elevator control is pressed

neutral longitudinal static stability.

The angle of attack of a wing directly controls the

distribution of pressures acting on the wing.

Airplane wing loading during a level coordinated turn in smooth air depends upon the

angle of bank.

The stalling speed of an airplane is most affected by

variations in airplane loading.

What type of stability does the horizontal stabilizer provide during flight?

Longitudinal.

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.

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 turn will increase.

If 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.

An airplane leaving ground effect will

experience an increase in induced drag and require more thrust.

Which is the correct symbol for the stalling speed or the minimum steady flight speed in a specified configuration?

VS1.

A sweptwing airplane with weak static directional stability and increased dihedral causes an increase in

Dutch roll tendency.

A rectangular wing, as compared to other wing planforms, has a tendency to stall first at the

wing root providing adequate stall warning

The ratio of an airplane's true airspeed to the speed of sound in the same atmospheric conditions is

mach number.

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.

By changing the angle of attack of a wing, the pilot can control the airplane's

lift, airspeed, and drag.

Lift on a wing is most properly defined as the

force acting perpendicular to the relative wind.

To maintain a standard rate turn as the airspeed increases, the bank angle of the aircraft will need to

increase.

The critical angle of attack is exceeded when

A stall occurs.

What changes in airplane longitudinal control must be made to maintain altitude while the airspeed is being decreased?

Increase the angle of attack to compensate for the decreasing lift.

Which is true regarding the force of lift in steady, unaccelerated flight?

There is a corresponding indicated airspeed required for every angle of attack to generate sufficient lift to maintain altitude.

Which is a purpose of ground spoilers?

Reduce the wings' lift upon landing.

In small airplanes, normal recovery from spins may become difficult if the

CG is too far rearward, and rotation is around the CG.

For which purpose may flight spoilers be used?

Reduce the wings' lift upon landing.

The primary reason the angle of attack must be increased, to maintain a constant altitude during a coordinated turn, is because the

vertical component of lift has decreased as the result of the bank.

In theory, if the airspeed of an aircraft is cut in half while in level flight, parasite drag will become

one-fourth as much.

Longitudinal stability involves the motion of the airplane controlled by its

elevator.

When flying from one airport to another with calm wind, the airspeed closest to the ground speed will be

True Airspeed (TAS).

If the airspeed is decreased from 98 knots to 85 knots during a coordinated level 45° banked turn, the load factor will

remain the same, but the radius of turn will decrease.

What is a purpose of flight spoilers?

Increase the rate of descent without increasing airspeed.

In theory, if the airspeed of an airplane is doubled while in level flight, parasite drag will become

four times greater.

Airflow from two adjacent surfaces that merge and contain eddy currents, turbulence or restrict airflow is called

interference drag.

While executing a 60° level turn, your aircraft is at a load factor of 2.0. What does this mean?

The total load on the aircraft's structure is two times its weight.

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.

In a rapid recovery from a dive, the effects of load factor would cause the stall speed to

increase.

Structural damage or failure is more likely to occur in smooth air at speeds above

VNE.