Commercial Ground – Basic Aerodynamics Practice Test

These questions are part of the practice quiz. Start practicing

• What does the term "twist" refer to in wing design?
• What is a critical angle of attack?
• During a turn, why must back elevator pressure be increased to maintain altitude?
• The angle of attack directly influences what aspect of wing performance?
• In a coordinated turn with a constant angle of bank, what happens to the rate of turn as airspeed increases?
• What effect does an increase in altitude have on air density?
• How does air density affect lift?
• What is induced drag?
• In a power-on 60° bank with gear and flaps up, how much higher will the stall speed be compared to gear and flaps down?
• Which statement about power-on stalls is accurate?
• Which combination of factors would yield the strongest vortex from an aircraft?
• What effect does increasing load factor have on stall speed?
• What is the primary limitation of utility category airplanes during maneuvers?
• What is the purpose of trim tabs?
• How do control surfaces influence aerodynamic forces?
• Which aspect must be monitored closely during a stall recovery?
• What does the vertical line from point E to point F on an airspeed indicator represent?
• What happens to the stall speed if the load factor is increased during a turn?
• How does wing design affect stall behavior?
• What does an increase in drag usually lead to for an aircraft?
• How does extending flaps affect an aircraft?
• What primarily determines the lift generated by a wing?
• What happens at the stall angle with respect to lift?
• What role do control surfaces play in aircraft performance?
• What does the horizontal dashed line from point C to point E on a load factor graph represent?
• In terms of aerodynamics, what disadvantage is associated with rectangular wings?
• The angle of attack at which a wing stalls remains constant regardless of which of the following factors?
• What defines controlled flight in aviation?
• Why is the stall progression of a rectangular wing beneficial?
• How is lift primarily generated on a wing while in steady flight?
• If airspeed increases during a level turn, what must be done to maintain altitude?
• How does the initial stall location affect overall aircraft handling?
• What is the effect of ground effect on an aircraft's required thrust?
• What must be adjusted for an airplane to maintain altitude while airspeed is decreasing?
• What aerodynamic factors affect the takeoff distance of an aircraft?
• What does the term "wing loading" refer to?
• If an airplane settles into a new position after elevator control is released, it displays what type of stability?
• How does airflow separation affect an aircraft?
• What occurs to the radius of a turn if the airspeed is decreased during a coordinated level turn?
• Which of the following statements is true regarding opposing forces in steady-state level flight?
• What is the importance of airflow over an airfoil?
• What does induced drag primarily depend on?
• What is one consequence of flying too close to the ground?
• Which control surface primarily affects pitch in an aircraft?
• What effect does increasing the angle of attack have on drag?
• To avoid wake turbulence from a large aircraft, a pilot should fly:
• When lifting off, what happens to the elevator control in relation to angle of attack?
• What is stall recovery?
• What is the definition of aerodynamics?
• What effect does increased dihedral have on a sweptwing airplane with weak static directional stability?
• What happens to the pressure below the wing as the angle of attack increases?
• What is most likely to affect the stalling speed of an airplane?
• How do environmental conditions affect aircraft performance?
• Which of the following forces acts on an aircraft in flight?
• What factor influences the strength of a vortex generated by an aircraft?
• How does temperature affect air density and lift?
• What is a vortex in aerodynamics?
• What safety considerations are associated with stalls?
• If the airspeed of an aircraft in level flight is cut in half, parasite drag will become what fraction of its original amount?
• How does the angle of attack influence lift?
• What phenomenon is associated with ground effect in aviation?
• When is an aircraft most likely to stall?
• What happens to the radius of turn if the angle of bank is held constant while airspeed increases?
• What is the purpose of flaps in an aircraft?
• Why is weight important in aerodynamics?
• When a rectangular wing stalls, what is the primary risk associated with it?
• What is a stall in the context of aviation?
• As the bank angle of an aircraft increases, what happens to the stall speed?
• What happens to the total drag of an aircraft when operating at maximum L/D ratio?
• What is the primary difference between laminar and turbulent flow?
• Which aircraft component is primarily responsible for controlling pitch?
• To produce the same lift while in ground effect, what adjustment is necessary?
• Which design characteristic helps to delay stall in wing structures?
• What is the term for the point where lift equals weight?
• 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:
• In flight theory, what happens to parasite drag when an airplane's airspeed is doubled while in level flight?
• What is the purpose of flaps on an aircraft?
• In small airplanes, why might recovery from spins become difficult?
• In a rectangular wing, where does the stall progression begin?
• What occurs when the center of pressure moves forward?
• Which control surface primarily influences longitudinal stability in an aircraft?
• If an airplane tends to return to its original position after a disturbance, what does this indicate?
• At the maximum lift-to-drag (L/D) ratio, what condition is the airplane experiencing?
• What is one of the main functions of flaps during approach and landing?
• What is the primary purpose of the elevator on an airplane?
• To maintain altitude during a banked turn, the pilot must increase what?
• Which statement correctly describes the force of lift in steady, unaccelerated flight?
• What is meant by "coefficient of lift"?
• If the unaccelerated stall speed of an airplane is 60 knots, what will the stall speed be under a load factor of 2 Gs?
• What effect does adding positive dihedral angle have on an aircraft?
• What role does the tailplane play in aircraft stability?
• What type of control does a rectangular wing provide during stall conditions?
• What effect does power have on stalling speed?
• For an airplane to maintain lift at higher altitudes, what must occur?
• What is the function of ailerons?
• Which of the following is true regarding the stalling speed of an aircraft?
• What are the components of the lift equation?
• To maintain a standard rate turn as airspeed increases, what must happen to the bank angle?
• If the same angle of attack is maintained in ground effect as when out of ground effect, the lift will:
• What does a stall at the wing root of a rectangular wing prevent?
• What does a load factor of 2.0 during a level turn indicate?
• Stall speed is affected by which of the following factors?
• What happens to stall speed when load factor increases during a coordinated turn?
• What aspect significantly affects stall speed in an aircraft?
• How does the position of the center of pressure change during flight?
• Which aspect of rectangular wings contributes to their stall characteristics?
• What is the relationship between load factor and airspeed in a level turn?
• To avoid wake turbulence from a large jet aircraft before takeoff, a pilot should plan to become airborne when?
• What happens to the load factor when airspeed is increased during a coordinated level turn with a fixed bank angle?
• Which factor must be compensated for during a level turn to keep the airplane from losing altitude?
• How does wing size influence aircraft performance?
• What is the effect of wing loading on aircraft performance?
• What happens to stall speed when flaps are raised?
• As the angle of bank is increased in flight, what happens to the vertical component of lift?
• Why is it important for pilots to be aware of the effects of load factor on stall speed?
• What performance is characteristic of flight at maximum lift/drag ratio in a propeller-driven airplane?
• What role does the rudder play in an aircraft?
• Which condition indicates an airplane is experiencing a stall?
• Which factor primarily affects lift?
• Which factor contributes to stability in an aircraft?
• As the weight of an aircraft decreases, what happens to the airspeed for maximum lift-to-drag ratio (L/D)?
• What kind of performance does a rectangular wing demonstrate during stall recovery?
• How does the load factor change when flying above L/D(MAX)?
• What is lift?
• What are airfoil characteristics that enhance lift?
• In terms of drag management, which of the following configurations would likely be more effective?
• What primarily affects the stall speed in turbulent conditions?
• If an aircraft has a gross weight of 2,000 pounds in a constant-altitude 60° bank, what would the total load be?
• When gliding at an angle of attack of 10 degrees, how much altitude will an airplane lose in 1 mile?
• For effective operations at varying speeds, what must aircraft design account for?
• In a gliding scenario, if an aircraft descends 1 foot for every 12 feet traveled horizontally, how much altitude will it lose over 3 statute miles?
• What is the Bernoulli principle in relation to aerodynamics?
• Which phenomenon can occur due to a high angle of attack?
• What happens to an aircraft flying at high angles of attack?
• What is the main effect of increased wing area on lift?
• What does the term "control surfaces" refer to?
• When should the angle of attack be adjusted during a turn to maintain altitude with increased speed?
• How can altitude influence aircraft speed requirements?
• When airspeed is decreased during a coordinated level turn, what happens to the load factor?
• When taking off behind a large jet, how can a pilot reduce the risk of wake turbulence?
• What effect does increasing the angle of attack have on induced drag?
• What is the significance of the center of gravity (CG)?
• How do winglets affect an aircraft's performance?
• If an aircraft’s center of gravity (CG) is too far rearward, what type of instability will it exhibit?
• How does the radius of turn change for an airplane in a coordinated turn at a constant altitude?
• When a propeller rotates clockwise as seen from the rear, which direction does the airplane tend to rotate around the vertical axis?
• When in ground effect, what primarily allows for greater lift?
• How do spoilers contribute to flight?
• In aerodynamics, how is the load factor defined?
• What design feature primarily enables an aircraft wing to produce lift?
• During a spin, what condition affects recovery difficulty significantly in small airplanes?
• To increase the rate of turn while decreasing the radius, a pilot should?
• As airspeed decreases below the maximum lift-to-drag ratio, what happens to total drag?
• If the airspeed is increased from 90 knots to 135 knots during a level 60° banked turn, the load factor will:
• What does a higher true airspeed allow an airplane to do at increased altitude?
• What is turbulence in the context of aerodynamics?
• What is the purpose of incorporating a dihedral angle in wing design?
• During a level turn, increasing the bank angle requires what change to maintain altitude?
• What are the main types of drag?
• A load factor of 1.2 indicates that the total load on an aircraft's structure is how many times its gross weight?
• What is the typical stall progression pattern for a rectangular wing?
• By changing the angle of attack of a wing, the pilot can control the airplane's:
• Load factor is defined as the lift generated by an aircraft's wings at any given time divided by what?
• If the angle of bank is increased from 60° to 80°, how much would the load factor increase?
• When an airplane leaves ground effect, what effect does this have on induced drag?
• How does an increase in angle of bank affect the load factor?
• What is the force that acts perpendicular to the relative wind on a wing?
• What is a good indicator of the load factor experienced by a pilot?
• In a typical flight operation, what is the significance of the wing's aspect ratio?
• What is a key characteristic of the stall pattern in rectangular wings?
• How does moisture affect aerodynamic performance?
• What is the lift-to-drag ratio?
• What role does the elevator play in an aircraft?
• Which of the following influences the stall speed of an aircraft?
• What is the significance of the aspect ratio of a wing?
• What is the primary function of the fuselage in aircraft?
• What is parasite drag?
• Which type of oscillations refers to the instability affecting an aircraft's lateral axis?
• Which component of lift must remain equal to the weight of the aircraft to maintain altitude during a turn?
• If the angle of bank is held constant in a level turn, what happens to the load factor when the rate of turn is varied?
• What is the primary effect of increased angle of attack up to the stall angle?
• Why does stall recovery become more difficult with an aft center of gravity?
• What effect does ground effect have on lift?
• What effect does humidity have on aircraft performance?
• What is lift on a wing most properly defined as?
• What is the relationship between angle of bank and load supported by the wings during a turn?
• During a rapid recovery from a dive, what effect does load factor have on stall speed?
• What is induced drag?
• Which force directly opposes drag during flight?
• What primarily influences airplane wing loading during a level coordinated turn in smooth air?
• What is one advantage of the rectangular wing’s stall behavior compared to other wing types?
• What is the glide ratio at an angle of attack of 8°?
• A pilot must coordinate thrust and what else to maintain level flight across a range of speeds?
• Which type of wing tends to stall first at the root?
• At which point in steady flight does an airplane achieve its maximum glide range?
• The principle behind an airfoil generating lift is based on what pressure difference?
• What is the impact of surface area on lift generation?
• What does drag refer to in aerodynamics?
• What effect does the stall pattern of a rectangular wing have during an approach to stall?
• What happens to the angle of attack during the transition from straight-and-level flight to a climb?
• Which statement regarding wake turbulence is accurate?
• What is meant by an aircraft's critical speed?
• Under what condition will an airplane stall?
• What effect does increasing the angle of attack have on a wing up to a certain point?
• How does airspeed affect lift?
• What effect does altitude have on the stall speed of an airplane?
• Which type of instability is identified by progressively steeper pitch oscillations?
• The need to slow an aircraft below V(A) is most influenced by what weather phenomenon?
• The L/D ratio at a 2° angle of attack is approximately the same as the L/D ratio for which angle of attack?
• How does drag influence an aircraft's performance?
• What is the stall speed of an airplane under a load factor of 2.5 G's if the unaccelerated stall speed is 60 knots?
• To maintain altitude during a turn, the angle of attack must be increased to compensate for the decrease in what component?
• In a steady-state descent, how do the forward and rearward forces compare?
• What term describes the ratio of total airload to gross weight of an aircraft?
• How does the stall progress in a rectangular wing?
• The area of lower pressure on an airfoil creates which force?
• What is the effect of increasing altitude on air pressure?
• When landing behind a large aircraft, what is the recommended procedure to avoid wake turbulence?
• When flaps are extended during landing, what happens to induced drag?
• What is the expected result of flying at a higher airspeed during a turn?
• Which factor does NOT affect the stall speed of an airplane?
• How do traditional aircraft wings differ when compared to modern wing designs?
• What does the Mach number indicate in aviation?
• What role does thrust play in flight?