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examen 1

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Quiz sobre examen 1, criado por Andres Felipe Londono em 20-10-2016.
Andres Felipe Londono
Quiz por Andres Felipe Londono, atualizado more than 1 year ago
Andres Felipe Londono
Criado por Andres Felipe Londono quase 8 anos atrás
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Resumo de Recurso

Questão 1

Questão
The primary reason the angle of attack must be increased, to maintain a constant altitude during a coordinated turn, is because the
Responda
  • Thrust is acting in a different direction, causing a reduction in airspeed and loss of lift.
  • Vertical component of lift has decreased as the result of the bank.
  • Use of ailerons has increased the drag.

Questão 2

Questão
Which is true regarding the use of flaps during level turns?
Responda
  • the lowering of flaps increases the stall speed.
  • The raising of flaps increases the stall speed.
  • Raising flaps will require added forward pressure on the yoke or stick.

Questão 3

Questão
Defines VNO as
Responda
  • Maximum operating limit speed.
  • Maximum structural cruising speed.
  • Never-exceed speed.

Questão 4

Questão
Airplane wing loading during a level coordinated turn in smooth air depends upon the
Responda
  • Rate of turn
  • Angle of bank
  • True airspeed

Questão 5

Questão
The stalling speed of an airplane is most affected by
Responda
  • Changes in air density
  • Variations in flight altitude.
  • Variations in airplane loading

Questão 6

Questão
During the transition from straight-and-level flight to a climb, the angle of attack is increased and lift
Responda
  • Is momentarily decreased.
  • Remains the same.
  • Is momentarily increased.

Questão 7

Questão
Load factor is the lift generated by the wings of an aircraft at any given time
Responda
  • Divided by the total weight of the aircraft.
  • Multiplied by the total weight of the aircraft.
  • Divided by the basic empty weight of the aircraft.

Questão 8

Questão
Lift on a wing is most properly defined as the
Responda
  • Force acting perpendicular to the relative wind.
  • Differential pressure acting perpendicular to the chord of the wing
  • Reducedpressureresultingfromalaminarflowovertheuppercamberofanairfoil, whichactsperpendicular to the mean camber.

Questão 9

Questão
While holding the angle of bank constant in a level turn, if the rate of turn is varied the load factor would
Responda
  • Remain constant regardless of air density and the resultant lift vector
  • Vary depending upon speed and air density provided the resultant lift vector varies proportionately.
  • Vary depending upon the resultant lift vector

Questão 10

Questão
Which is true regarding the forces acting on an aircraft in a steady-state descent? The sum of all
Responda
  • Upward forces is less than the sum of all downward forces.
  • Forces is greater than the sum of all forward forces.
  • Forward forces is equal to the sum of all rearward forces

Questão 11

Questão
What performance is characteristic of flight at maximum lift/drag ratio in a propeller- driven airplane? Maximum
Responda
  • Gain in altitude over a given distance.
  • Range and maximum distance glide.
  • Coefficient of lift and minimum coefficient of drag.

Questão 12

Questão
The need to slow an aircraft below VA is brought about by the following weather phenomenon:
Responda
  • High density altitude which increases the indicated stall speed.
  • Turbulence which causes an increase in stall speed
  • Turbulence which causes a decrease in stall speed.

Questão 13

Questão
In theory, if the airspeed of an airplane is doubled while in level flight, parasite drag will become
Responda
  • Twice as great.
  • Half as great.
  • Four times greater.

Questão 14

Questão
As airspeed decreases in level flight below that speed for maximum lift/drag ratio, total drag of an airplane
Responda
  • Decreases because of lower parasite drag.
  • Increases because of increased induced drag.
  • Increases because of increased parasite drag.

Questão 15

Questão
If the airspeed is increased from 90 knots to 135 knots during a level 60° banked turn, the load factor will
Responda
  • Increase as well as the stall speed.
  • Decrease and the stall speed will increase.
  • Remain the same but the radius of turn will increase.

Questão 16

Questão
The angle of attack at which a wing stalls remains constant regardless of
Responda
  • Weight, dynamic pressure, bank angle, or pitch attitude.
  • Dynamic pressure, but varies with weight, bank angle, and pitch attitude.
  • Weight and pitch attitude, but varies with dynamic pressure and bank angle.

Questão 17

Questão
Which statement is true, regarding the opposing forces acting on an airplane in steady- state level flight?
Responda
  • These forces are equal.
  • Thrust is greater than drag and weight and lift are equal.
  • Thrust is greater than drag and lift is greater than weight.

Questão 18

Questão
On a wing, the force of lift acts perpendicular to, and the force of drag acts parallel to the
Responda
  • Chord line.
  • Flightpath
  • Longitudinal axis.

Questão 19

Questão
An aircraft wing is designed to produce lift resulting from a difference in the
Responda
  • Negative air pressure below and a vacuum above the wing's surface.
  • Vacuum below the wing's surface and greater air pressure above the wing's surface.
  • Higher air pressure below the wing's surface and lower air pressure above the wing's surface.

Questão 20

Questão
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
Responda
  • The same as at the lower speed.
  • Two times greater than at the lower speed.
  • Four times greater than at the lower speed.

Questão 21

Questão
20 By changing the angle of attack of a wing, the pilot can control the airplane's
Responda
  • Lift, airspeed, and drag.
  • Lift, airspeed, and CG.
  • Lift and airspeed, but not drag

Questão 22

Questão
A rectangular wing, as compared to other wing planforms, has a tendency to stall first at the
Responda
  • Wingtip, with the stall progression toward the wing root.
  • Wing root, with the stall progression toward the wing tip.
  • Center trailing edge, with the stall progression outward toward the wing root and tip.

Questão 23

Questão
Stall speed is affected by
Responda
  • Weight, load factor, and power.
  • Load factor, angle of attack, and power.
  • Angle of attack, weight, and air density.

Questão 24

Questão
Which statement is true relative to changing angle of attack?
Responda
  • A decrease in angle of attack will increase pressure below the wing, and decrease drag.
  • An increase in angle of attack will decrease pressure below the wing, and increase drag.
  • An increase in angle of attack will increase drag.

Questão 25

Questão
For a given angle of bank, in any airplane, the load factor imposed in a coordinated constant-altitude turn
Responda
  • Is constant and the stall speed increases.
  • Varies with the rate of turn.
  • Is constant and the stall speed decreases.

Questão 26

Questão
If severe turbulence is encountered during flight, the pilot should reduce the airspeed to
Responda
  • Minimum control speed.
  • Design-maneuvering speed.
  • Maximum structural cruising speed.

Questão 27

Questão
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
Responda
  • Right around the vertical axis, and to the left around the longitudinal axis.
  • Left around the vertical axis, and to the right around the longitudinal axis.
  • Left around the vertical axis, and to the left around the longitudinal axis.

Questão 28

Questão
Which is true regarding the force of lift in steady, unaccelerated flight?
Responda
  • At lower airspeeds the angle of attack must be less to generate sufficient lift to maintain altitude.
  • There is a corresponding indicated airspeed required for every angle of attack to generate
  • Anairfoilwillalwaysstallatthesameindicatedairspeed, therefore, anincreaseinweightwillrequireanincrease in speed to generate sufficient lift to maintain altitude.

Questão 29

Questão
The ratio between the total airload imposed on the wing and the gross weight of an aircraft in flight is known as
Responda
  • Load factor and directly affects stall speed.
  • Aspect load and directly affects stall speed.
  • Load factor and has no relation with stall speed.

Questão 30

Questão
(Refer to figure 1) The vertical line from point D to point G is represented on the airspeed indicator by the maximum speed limit of the
Responda
  • Green arc.
  • Yellow Arc
  • White Arc

Questão 31

Questão
If an aircraft with a gross weight of 2,000 pounds was subjected to a 60° constant-altitude bank, the total load would be
Responda
  • 3000 pounds
  • 4000 pounds
  • 12000 pounds

Questão 32

Questão
If the airplane attitude initially tends to return to its original position after the elevator control is pressed forward and released, the airplane displays
Responda
  • Positive dynamic stability.
  • Positive static stability.
  • Neutral dynamic stability.

Questão 33

Questão
Longitudinal stability involves the motion of the airplane controlled by its
Responda
  • Rudder
  • Elevator
  • Ailerons

Questão 34

Questão
Longitudinal dynamic instability in an airplane can be identified by
Responda
  • Bank oscillations becoming progressively steeper.
  • Pitch oscillations becoming progressively steeper.
  • Trilatitudinal roll oscillations becoming progressively steeper.

Questão 35

Questão
If the airplane attitude remains in a new position after the elevator control is pressed forward and released, the airplane displays
Responda
  • Neutral longitudinal static stability.
  • Positive longitudinal static stability.
  • Neutral longitudinal dynamic stability.

Questão 36

Questão
In a rapid recovery from a dive, the effects of load factor would cause the stall speed to
Responda
  • Increase.
  • Decrease.
  • Not vary.

Questão 37

Questão
When turbulence is encountered during the approach to a landing, what action is recommended and for what primary reason?
Responda
  • Increase the airspeed slightly above normal approach speed to attain more positive control.
  • Decrease the airspeed slightly below normal approach speed to avoid overstressing the airplane.
  • Increase the air speeds lightly above normal approach speed to penétrate the turbulence as quickly as possible.

Questão 38

Questão
Recovery from a stall in any airplane becomes more difficult when its
Responda
  • Center of gravity moves forward.
  • Elevator trim is adjusted nosedown.
  • Center of gravity moves aft.

Questão 39

Questão
Why is it necessary to increase back elevator pressure to maintain altitude during a turn? To compensate for the
Responda
  • Loss of the vertical component of lift.
  • Loss of the horizontal component of lift and the increase in centrifugal force.
  • Rudder deflection and slight opposite aileron throughout the turn.

Questão 40

Questão
If airspeed is increased during a level turn, what action would be necessary to maintain altitude? The angle of attack
Responda
  • And angle of bank must be decreased.
  • Must be increased or angle of bank decreased.
  • Must be decreased or angle of bank increased.

Questão 41

Questão
Name the four fundamentals involved in maneuvering an aircraft.
Responda
  • Power, pitch, bank, and trim.
  • Thrust, lift, turns, and glides.
  • Straight-and-level flight, turns, climbs, and descents.

Questão 42

Questão
A pilot's most immediate and vital concern in the event of complete engine failure after becoming airborne on takeoff is
Responda
  • Maintaining a safe airspeed.
  • Landing directly into the wind.
  • Turning back to the takeoff field.

Questão 43

Questão
To increase the rate of turn and at the same time decrease the radius, a pilot should
Responda
  • Maintain the bank and decrease airspeed.
  • Increase the bank and increase airspeed.
  • Increase the bank and decrease airspeed.

Questão 44

Questão
(Refer to figure 2.) Select the correct statement regarding stall speeds. The airplane will stall
Responda
  • 10 knots higher in a power-on, 60° bank, with gear and flaps up, than with gear and flaps down.
  • 25 knots lower in a power-off, flaps-up, 60° bank, than in a power-off, flaps-down, wings-level configuration.
  • 10 knots higher in a 45° bank, power-on stall, than in a wings-level stall with flaps up.

Questão 45

Questão
An airplane leaving ground effect will
Responda
  • Experience a reduction in ground friction and require a slight power reduction.
  • Experience an increase in induced drag and require more thrust.
  • Require a lower angle of attack to maintain the same lift coefficient.

Questão 46

Questão
One of the main functions of flaps during the approach and landing is to
Responda
  • Decrease the angle of descent without increasing the airspeed.
  • Provide the same amount of lift at a slower airspe
  • Decrease lift, thus enabling a steeper-than-normal approach to be made.

Questão 47

Questão
The spoilers should be in what position when operating in a strong wind?
Responda
  • Extended during both a landing roll or ground operation.
  • Retracted during both a landing roll or ground operation.
  • Extended during a landing roll, but retracted during a ground operation.

Questão 48

Questão
The purpose of wing spoilers is to decrease
Responda
  • The drag.
  • Landing speed.
  • The lift of the wing.

Questão 49

Questão
Propeller efficiency is the
Responda
  • Ratio of thrust horsepower to brake horsepower.
  • Actual distance a propeller advances in one revolution.
  • Ratio of geometric pitch to effective pitch.

Questão 50

Questão
In order to achieve single engine climb performance with an engine failed in most twin prop aircraft, it is essential to:
Responda
  • Apply full power to the live engine (firewall)
  • Minimize drag (flaps, gear, feather prop)
  • Secure the failed engine

Questão 51

Questão
If the same angle of attack is maintained in ground effect as when out of ground effect, lift will
Responda
  • increase, and induced drag will decrease.
  • decrease, and parasite drag will increase.
  • increase, and induced drag will increase

Questão 52

Questão
In order to achieve a zero sideslip condition with a failed engine on a propeller aircraft, the pilot must:
Responda
  • Bank away from the live engine up to 5o
  • Center the ball on the turn and slip indicator
  • Bank into the live engine slightly

Questão 53

Questão
When dealing with aerodynamics, VMC refers to:
Responda
  • Visual Meteorological Conditions
  • Minimum airspeed at which directional control can be maintained with the critical engine inoperative
  • Maximum airspeed at which an engine can be operated with one engine

Questão 54

Questão
On an aircraft without counter-rotating props, the left engine is considered to be the critical one to fail because of the following factors:
Responda
  • Zero sideslip condition, engine windmilling and aft legal C of G.
  • P-factor, Accelerated slipstream, Spiraling slipstream and Torque
  • No power available Vs power required, yaw towards the left engine and sideslip

Questão 55

Questão
Every physical process of weather is accompanied by or is the result of
Responda
  • A heat exchange.
  • The movement of air.
  • A pressure differentia.

Questão 56

Questão
What causes wind?
Responda
  • The Earth’s rotation.
  • Air mass modification.
  • Pressure differences.

Questão 57

Questão
In the Northern Hemisphere, the wind is deflected to the
Responda
  • Right by Coriolis force.
  • Right by surface friction.
  • Left by Coriolis force.

Questão 58

Questão
Why does the wind have a tendency to flow parallel to the isobars above the friction level?
Responda
  • Coriolis force tends to counterbalance the horizontal pressure gradient.
  • Coriolis force acts perpendicular to a light connecting the highs and lows.
  • Friction of the air with the Earth deflects the air perpendicular to the pressure gradient.

Questão 59

Questão
What prevents air from flowing directly from high-pressure areas to low-pressure areas?
Responda
  • Coriolis force.
  • Surface friction.
  • Pressure gradient force.

Questão 60

Questão
Which would increase the stability of an air mass?
Responda
  • Warning from below.
  • Cooling from below.
  • Decrease in water vapor.

Questão 61

Questão
Which feature is associated with the tropopause?
Responda
  • Constant height above the Earth.
  • Abrupt change in the temperature lapse rate.
  • Absolute upper limit of cloud formation.

Questão 62

Questão
A common location of clear air turbulence is
Responda
  • In an upper trough on the polar side of a jet stream.
  • Near a ridge aloft on the equatorial side of a high-pressure flow.
  • South of an east/west oriented high-pressure ridge in its dissipating stage.

Questão 63

Questão
The jet stream and associated clear air turbulence can sometimes be visually identified in flight by
Responda
  • Dust or haze at flight level.
  • Long streaks of cirrus clouds.
  • A constant outside air temperature.

Questão 64

Questão
During the winter months in the middle latitudes, the jet stream shifts toward the
Responda
  • North and speed decreases.
  • South and speed increases.
  • North and speed increases.

Questão 65

Questão
Which type of jet stream can be expected to cause the greater turbulence?
Responda
  • A straight jet stream associated with a low-pressure trough.
  • A curving jet stream associated with a deep low-pressure trough.
  • A jet stream occurring during the summer at the lower latitudes.

Questão 66

Questão
Which conditions are favorable for the formation of a surface based temperature inversion?
Responda
  • Clear, cool nights with calm or light wind.
  • Area of unstable air rapidly transferring heat from the surface.
  • Broad areas of cumulus clouds with smooth, level bases at the same altitude.

Questão 67

Questão
The wind system associated with a low-pressure area in the Northern Hemisphere is
Responda
  • An anticyclone and is caused by descending cold air.
  • A cyclone and is caused by Coriolis force.
  • An anticyclone and is caused by Coriolis force.

Questão 68

Questão
Which is the true with a respect to a high- or low-pressure system?
Responda
  • A high-pressure area or ridge is an area of rising air.
  • A low-pressure area or trough is an area of descending air.
  • A high-pressure area or ridge is an area of descending air.

Questão 69

Questão
Which is the true regarding high- or low-pressure systems?
Responda
  • A high-pressure area or ridge is an area of rising air.
  • A low-pressure area or trough is an area of rising air.
  • Both high- and low-pressure areas are characterized by descending air.

Questão 70

Questão
Which is true regarding actual air temperature and dew point temperature spread? The temperature spread
Responda
  • Decreases as the relative humidity decreases.
  • Decreases as the relative humidity increases.
  • Increases as the relative humidity increases.

Questão 71

Questão
Moisture is added to a parcel of air by
Responda
  • Sublimation and condensation.
  • Evaporation and condensation.
  • Evaporation and sublimation.

Questão 72

Questão
Which would decrease the stability of an air mass?
Responda
  • Warming from below.
  • Cooling from below
  • Decrease in water vapor.

Questão 73

Questão
What determines the structure or type of clouds which will form as a result of air being forced to ascend?
Responda
  • The method by which the air is lifted.
  • The stability of the air before lifting occurs.
  • The relative humidity of the air after lifting occurs.

Questão 74

Questão
When conditionally unstable air with high-moisture content and very warm surface temperature is forecast, one can expect what type of weather?
Responda
  • Strong updrafts and stratonimbus clouds.
  • Restricted visibility near the surface over a large area.
  • Strong updrafts and cumulonimbus clouds.

Questão 75

Questão
f clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be
Responda
  • Cirrus type with no vertical development or turbulence.
  • Cumulus type with considerable vertical development and turbulence.
  • Stratus type with little vertical development and little or no turbulence.

Questão 76

Questão
What type weather can one expect from moist, unstable air, and very warm surface temperatures?
Responda
  • Fog and low stratus clouds.
  • Continuous heavy precipitation.
  • Strong updrafts and cumulonimbus clouds.

Questão 77

Questão
The conditions necessary for the formation of stratiform clouds are a lifting action and
Responda
  • Unstable, dry air.
  • Stable, moist air.
  • Unstable, moist air.

Questão 78

Questão
Which cloud types would indicate convective turbulence?
Responda
  • Cirrus clouds.
  • Nimbostratus clouds.
  • Towering cumulus clouds.

Questão 79

Questão
Which combination of weather-producing variables would likely result in cumuliform- type clouds, good visibility, and showery rain?
Responda
  • Stable, moist air and orographic lifting.
  • Unstable, moist air and orographic lifting.
  • Unstable, moist air and no lifting mechanism

Questão 80

Questão
What are the characteristics of stable air?
Responda
  • Good visibility, steady precipitation, stratus clouds.
  • Poor visibility, steady precipitation, stratus clouds.
  • Poor visibility, intermittent precipitation, cumulus clouds.

Questão 81

Questão
What is a characteristic of stable air?
Responda
  • Stratiform clouds.
  • Fair weather cumulus clouds.
  • Temperature decreases rapidly with altitude.

Questão 82

Questão
When an air mass is stable, which of these conditions are most likely to exist?
Responda
  • Numerous towering cumulus and cumulonimbus clouds.
  • Moderate to severe turbulence at the lower levels.
  • Smoke, dust, haze, etc., concentrated at the lower levels with resulting poor visibility.

Questão 83

Questão
Which is characteristic of stable air?
Responda
  • Cumuliform clouds.
  • Excellent visibility.
  • Restricted visibility.

Questão 84

Questão
Which is a characteristic typical of a stable air mass?
Responda
  • Cumuliform clouds.
  • Showery precipitation.
  • Continuous precipitation.

Questão 85

Questão
Which are characteristics of a cold air mass moving over a warm surface?
Responda
  • Cumuliform clouds, turbulence, and poor visibility.
  • Cumuliform clouds, turbulence, and good visibility.
  • Stratiform clouds, smooth air, and poor visibility.

Questão 86

Questão
Which is true regarding a cold from occlusion? The air ahead of the warm front
Responda
  • Is colder than the air behind the overtaking cold front.
  • Is warmer than the air behind the overtaking cold front.
  • Has the same temperature as the air behind the overtaking cold front.

Questão 87

Questão
The conditions most favorable to wave formation over mountainous areas are a layer of
Responda
  • Stable air at mountaintop altitude and a wind of at least 20 knots blowing across the ridge.
  • Unstable air at mountaintop altitude and a wind of at least 20 knots blowing across the ridge.
  • Moist, unstable air at mountaintop altitude and a wind of less than 5 knots blowing across the ridge.

Questão 88

Questão
One of the most dangerous features of mountain waves is the turbulent areas in and
Responda
  • Below rotor clouds.
  • Above rotor clouds.
  • Below lenticular clouds.

Questão 89

Questão
Virga is best described as
Responda
  • Streamers of precipitation trailing beneath clouds which evaporates before reaching the ground.
  • Wall cloud torrents trailing beneath cumulonimbus clouds which dissipate before reaching the ground.
  • Turbulent areas beneath cumulonimbus clouds.

Questão 90

Questão
he most severe weather conditions, such as destructive winds, heavy hail, and tornadoes, are generally associated with.
Responda
  • Slow-moving warm fronts which slope above the tropopause.
  • Squall lines.
  • Fast-moving occluded fronts.

Questão 91

Questão
If airborne radar is indicating an extremely intense thunderstorm echo, this thunderstorm should be avoided by a distance of at least
Responda
  • 20 milles
  • 10 milles
  • 5 milles

Questão 92

Questão
What visible signs indicate extreme turbulence in thunderstorm?
Responda
  • Base of the clouds near the surface, heavy rain, and hail.
  • Low ceiling and visibility, hail, and precipitation static.
  • Cumulonimbus clouds, very frequent lightning, and roll clouds.

Questão 93

Questão
Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
Responda
  • The start of rain.
  • The appearance of an anvil top.
  • Growth rate of clouds is maximum.

Questão 94

Questão
What feature is normally associated with the cumulus stage of thunderstorm?
Responda
  • Roll cloud.
  • Continuous updraft.
  • Beginning of rain at the surface.

Questão 95

Questão
During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Responda
  • Mature.
  • Developing.
  • Dissipating.

Questão 96

Questão
What minimum distance should exist between intense radar echoes before any attempt is made to fly between these thunderstorms?
Responda
  • 20 milles
  • 30 milles
  • 40 milles

Questão 97

Questão
During an IFR cross-country flight you picked up rime icing which you estimate is 1/2 “ thick on the leading edge of the wings. You are now below the clouds al 2000 feet AGL and are approaching your destination airport under VFR. Visibility under the clouds is more than 10 miles, winds at the destination airport are 8 knots right down the runway, and the surface temperature is 3 degrees Celsius. You decide to:
Responda
  • Use a faster than normal approach and landing speed.
  • Approach and land at your normal speed since the ice is not thick enough to have any noticeable effect.
  • Fly your approach slower than normal to lessen the “wind chill” effect and break up the ice.

Questão 98

Questão
Frost covering the upper surface of an airplane wing usually will cause.
Responda
  • The airplane to stall at an angle of attack that is higher than normal.
  • The airplane to stall at an angle of attack that is lower than normal.
  • Drag factors so large that sufficient speed cannot be obtained for takeoff.

Questão 99

Questão
A characteristic of the stratosphere is
Responda
  • An overall decrease of temperature with an increase in altitude.
  • A relatively even base altitude of approximately 35.000 feet.
  • Relatively small changes in temperature with an increase in altitude.

Questão 100

Questão
Which feature is associated with the tropopause?
Responda
  • Absence of wind and turbulent conditions.
  • Absolute upper limit of cloud formation.
  • Abrupt change in temperature lapse rate.

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