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examen 1

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Quiz on examen 1, created by Andres Felipe Londono on 20/10/2016.
Andres Felipe Londono
Quiz by Andres Felipe Londono, updated more than 1 year ago
Andres Felipe Londono
Created by Andres Felipe Londono over 7 years ago
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Resource summary

Question 1

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

Question 2

Question
Which is true regarding the use of flaps during level turns?
Answer
  • 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.

Question 3

Question
Defines VNO as
Answer
  • Maximum operating limit speed.
  • Maximum structural cruising speed.
  • Never-exceed speed.

Question 4

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

Question 5

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

Question 6

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

Question 7

Question
Load factor is the lift generated by the wings of an aircraft at any given time
Answer
  • 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.

Question 8

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

Question 9

Question
While holding the angle of bank constant in a level turn, if the rate of turn is varied the load factor would
Answer
  • 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

Question 10

Question
Which is true regarding the forces acting on an aircraft in a steady-state descent? The sum of all
Answer
  • 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

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

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

Question 16

Question
The angle of attack at which a wing stalls remains constant regardless of
Answer
  • 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.

Question 17

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

Question 18

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

Question 19

Question
An aircraft wing is designed to produce lift resulting from a difference in the
Answer
  • 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.

Question 20

Question
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
Answer
  • The same as at the lower speed.
  • Two times greater than at the lower speed.
  • Four times greater than at the lower speed.

Question 21

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

Question 22

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

Question 23

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

Question 24

Question
Which statement is true relative to changing angle of attack?
Answer
  • 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.

Question 25

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

Question 26

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

Question 27

Question
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
Answer
  • 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.

Question 28

Question
Which is true regarding the force of lift in steady, unaccelerated flight?
Answer
  • 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.

Question 29

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

Question 30

Question
(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
Answer
  • Green arc.
  • Yellow Arc
  • White Arc

Question 31

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

Question 32

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

Question 33

Question
Longitudinal stability involves the motion of the airplane controlled by its
Answer
  • Rudder
  • Elevator
  • Ailerons

Question 34

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

Question 35

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

Question 36

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

Question 37

Question
When turbulence is encountered during the approach to a landing, what action is recommended and for what primary reason?
Answer
  • 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.

Question 38

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

Question 39

Question
Why is it necessary to increase back elevator pressure to maintain altitude during a turn? To compensate for the
Answer
  • 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.

Question 40

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

Question 41

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

Question 42

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

Question 43

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

Question 44

Question
(Refer to figure 2.) Select the correct statement regarding stall speeds. The airplane will stall
Answer
  • 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.

Question 45

Question
An airplane leaving ground effect will
Answer
  • 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.

Question 46

Question
One of the main functions of flaps during the approach and landing is to
Answer
  • 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.

Question 47

Question
The spoilers should be in what position when operating in a strong wind?
Answer
  • 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.

Question 48

Question
The purpose of wing spoilers is to decrease
Answer
  • The drag.
  • Landing speed.
  • The lift of the wing.

Question 49

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

Question 50

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

Question 51

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

Question 52

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

Question 53

Question
When dealing with aerodynamics, VMC refers to:
Answer
  • 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

Question 54

Question
On an aircraft without counter-rotating props, the left engine is considered to be the critical one to fail because of the following factors:
Answer
  • 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

Question 55

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

Question 56

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

Question 57

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

Question 58

Question
Why does the wind have a tendency to flow parallel to the isobars above the friction level?
Answer
  • 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.

Question 59

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

Question 60

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

Question 61

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

Question 62

Question
A common location of clear air turbulence is
Answer
  • 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.

Question 63

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

Question 64

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

Question 65

Question
Which type of jet stream can be expected to cause the greater turbulence?
Answer
  • 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.

Question 66

Question
Which conditions are favorable for the formation of a surface based temperature inversion?
Answer
  • 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.

Question 67

Question
The wind system associated with a low-pressure area in the Northern Hemisphere is
Answer
  • 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.

Question 68

Question
Which is the true with a respect to a high- or low-pressure system?
Answer
  • 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.

Question 69

Question
Which is the true regarding high- or low-pressure systems?
Answer
  • 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.

Question 70

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

Question 71

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

Question 72

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

Question 73

Question
What determines the structure or type of clouds which will form as a result of air being forced to ascend?
Answer
  • 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.

Question 74

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

Question 75

Question
f clouds form as a result of very stable, moist air being forced to ascend a mountain slope, the clouds will be
Answer
  • 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.

Question 76

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

Question 77

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

Question 78

Question
Which cloud types would indicate convective turbulence?
Answer
  • Cirrus clouds.
  • Nimbostratus clouds.
  • Towering cumulus clouds.

Question 79

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

Question 80

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

Question 81

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

Question 82

Question
When an air mass is stable, which of these conditions are most likely to exist?
Answer
  • 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.

Question 83

Question
Which is characteristic of stable air?
Answer
  • Cumuliform clouds.
  • Excellent visibility.
  • Restricted visibility.

Question 84

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

Question 85

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

Question 86

Question
Which is true regarding a cold from occlusion? The air ahead of the warm front
Answer
  • 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.

Question 87

Question
The conditions most favorable to wave formation over mountainous areas are a layer of
Answer
  • 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.

Question 88

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

Question 89

Question
Virga is best described as
Answer
  • 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.

Question 90

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

Question 91

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

Question 92

Question
What visible signs indicate extreme turbulence in thunderstorm?
Answer
  • 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.

Question 93

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

Question 94

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

Question 95

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

Question 96

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

Question 97

Question
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:
Answer
  • 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.

Question 98

Question
Frost covering the upper surface of an airplane wing usually will cause.
Answer
  • 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.

Question 99

Question
A characteristic of the stratosphere is
Answer
  • 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.

Question 100

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