NIFE Aerodynamics Practice Exam

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• When will the value of indicated airspeed equal the aircraft's true airspeed?
• What is stall in aerodynamics?
• All motion or changes in an aircraft's attitude occur about which point?
• Describe vortex formation in aerodynamics.
• Which of the following conditions is necessary for an aircraft to achieve level flight?
• What must happen to maintain a constant mass airflow in a streamtube?
• What is the function of a trim tab on an aircraft?
• What needs to be done to maintain lift when flying at higher altitudes?
• What does the equation A1V1 = A2V2 express in terms of airflow?
• What effect does reduced air density at high altitudes have on lift?
• What is the relationship between L/D Maximum AOA and the maximum lift angle of attack?
• Parasite drag decreases with an increase in velocity. This statement is:
• What is the primary purpose of flaps on an aircraft?
• How should a pilot take off and land in relation to the plane ahead?
• What role does air pressure play in aircraft lift at different altitudes?
• What occurs at the stall angle of attack?
• Which flight condition leads to the greatest lift-to-drag ratio?
• After entering a spin, what maintains autorotation?
• What is the relationship between altitude and density?
• What does "airspeed" refer to in aviation?
• Which two factors do pilots control that affect the coefficient of lift?
• What differentiates static stability from dynamic stability?
• If an aircraft is operating at CLMAX AOA, the aircraft is stalled.
• Which statement is true regarding Max Endurance?
• What happens to an aircraft's minimum airspeed as it burns off fuel?
• How can smooth surfaces improve aerodynamic efficiency?
• What occurs to true stall speed as altitude increases?
• How does induced drag change as the angle of attack increases in a stall condition?
• What is the definition of aerodynamics?
• Which two forces are considered aerodynamic forces?
• At zero degrees angle of attack and positive velocity, a symmetrical airfoil will produce:
• What does induced drag depend on?
• What effect does increasing temperature have on air density in aerodynamics?
• Which factor does NOT influence the lift of an aircraft?
• What is the static pressure distribution about a positively cambered airfoil at zero angle of attack in level flight?
• Stall speed is the minimum _____ required to maintain level flight at CLMAX AOA.
• At what point does induced drag decrease?
• How does an increase in angle of attack affect the dynamic pressure and static pressure on the upper surface of an airfoil?
• What effect does wind shear have on aircraft?
• Power-on stall speed will be _____ than power-off stall speed.
• Which wing configuration can improve lateral stability?
• What is the primary function of control surfaces in flight?
• High induced drag is associated with low angles of attack. This statement is:
• What type of correction must you apply to indicated airspeed (IAS) to calculate true airspeed (TAS)?
• What is an example of an aircraft operating under equilibrium?
• What is the primary cause of a stall if an aircraft rolls into a 60 degree angle of bank turn and pulls 3 g's at 200 knots?
• Drag is defined as:
• How can one reduce friction drag on an aircraft?
• Which of the following reduces the spanwise airflow around the wingtip?
• At the boundary layer, what type of flow produces more friction but adheres better to a surface?
• What is required to correct for a skid during flight?
• What is induced drag?
• Lift of an airfoil is always:
• Which blade generates more thrust on the T-6B during a climb when PCL is advanced?
• What occurs due to insufficient rudder in the direction of the turn?
• What is meant by compressibility in aerodynamics?
• What is a common consequence of reduced air density at higher altitudes for aircraft?
• How does induced drag vary with an increase in velocity?
• Total pressure is comprised of which two elements?
• What happens to takeoff distance when an aircraft encounters a headwind?
• How does a jet engine generate thrust?
• What happens to parasite drag as the speed of an aircraft decreases?
• What variables determine the amount of lift produced by an airfoil?
• Which adjustment may be necessary for an aircraft operating at high altitudes?
• What is the primary purpose of flaps during takeoff and landing?
• How does a higher wing loading affect an aircraft during takeoff and landing?
• What airspeed, when corrected for compressibility effects, results in equivalent airspeed?
• What best defines a moment in terms of physics?
• Which of the following, when doubled, will cause the greatest increase in lift?
• What does the term "critical Mach number" refer to?
• What is the relationship between stall speed and CLmax when flaps are deployed?
• Which force is considered when analyzing aircraft performance?
• What is characterized by turbulent flow?
• Which factor primarily determines the lift produced by a wing?
• Why is it important to monitor the angle of attack during flight?
• What does the Reynolds number signify in fluid dynamics?
• What does "anhedral" wing configuration describe?
• According to the lift equation, in a slow speed situation such as landing, angle of attack will be:
• What happens to stall speed as weight increases in an aircraft?
• What effect do wingtip vortices have on the relative wind experienced by an aircraft?
• What is the definition of air density?
• What does a higher lift-to-drag ratio indicate?
• What is influenced by the aerodynamic profile of an object?
• Using flaps _____ the stalling AOA.
• What are the two types of parasite drag?
• Which condition leads to increased induced drag?
• Which statement about stall is correct?
• What is the purpose of an airfoil?
• When flying at the velocity for L / D maximum in straight and level flight:
• What are the potential effects of turbulence on an aircraft?
• What causes a stall in an aircraft?
• Which force acts vertically downwards on an aircraft during flight?
• Increasing air density at a given altitude will have what effect on stall speed?
• What happens to the lift produced by an airfoil at a higher angle of attack?
• What contributes to the lift generated by an airfoil?
• Why is an aircraft's center of gravity crucial for stability?
• Wind shear can cause a sudden change in which type of airspeed?
• What effect does thrust have on stall speed during a power-on stall?
• What does an aircraft rely on to achieve optimal performance during flight?
• What are the types of drag experienced by aircraft?
• Which type of flight condition typically results in higher drag due to increased turbulent flow?
• When maximizing climb performance, which aspect is prioritized?
• What factor related to altitude is crucial for aircraft performance?
• How does humidity affect lift generated by an aircraft?
• An aircraft is climbing at a constant 350 knots IAS. What change in TAS occurs as altitude increases?
• During takeoff with a tailwind, what remains unchanged?
• At what altitude is air density typically at its lowest?
• What does indicated airspeed represent?
• What is a characteristic of operating in the region of reverse command?
• What significantly increases an aircraft's stall speed?
• The lift generated by an aircraft is primarily a result of what?
• According to the continuity equation for incompressible airflow, what happens to airflow velocity as stream tube area decreases?
• If an airplane takes off with a tailwind, how will the takeoff distance be affected?
• What does "flutter" refer to in aerodynamics?
• In aerodynamics, how is lift primarily created?
• What role does the propulsion system play in an aircraft?
• What term describes the maximum load factor an airplane can withstand without structural failure?
• What role does the vertical stabilizer play in an aircraft?
• Yaw is the motion around which axis?
• When flying at higher altitudes, what component can pilots modify to compensate for reduced lift?
• Why might an aircraft require higher speed at high altitudes?
• How does an increase in altitude affect static pressure?
• Which climb profile is necessary to clear a high obstacle at the end of a runway?
• What four airflow properties must remain constant on an airfoil to have steady airflow?
• Slipstream swirl and P-factor are most prominent under which conditions?
• To maintain altitude lift must equal drag.
• The chordline is defined as:
• Define drag in aerodynamics.
• What are the effects of positive g-forces during flight?
• What common feature differentiates an airfoil from a flat surface?
• In the region of reverse command, what is required to maintain a slower airspeed?
• Which aircraft performance aspect is primarily impacted by altitude changes?
• What is Bernoulli's principle?
• What term describes the forces acting on an aircraft that are parallel to the relative wind?
• Which aerodynamic force opposes the motion of the aircraft?
• What is the effect of increased thrust on aircraft performance?
• What happens to the lift vector during a high-speed turn?
• What would increase the density of air acting on an aircraft?
• When flying over the Atlantic Ocean, which glide profile should you follow if both engines flame out?
• What characteristic does the stall angle of attack possess?
• What does groundspeed equal on takeoff?
• Which condition can change the stall characteristics of an aircraft?
• What is the primary reason for entering a spin?
• Why is maintaining an optimal lift-to-drag ratio important?
• What is usually the result of increasing the angle of attack past the critical angle?
• What happens to maximum range and maximum endurance as altitude decreases?
• What is the primary factor that affects the density of air at any altitude?
• What is an aircraft's center of gravity (CG)?
• Roll is defined as the movement about which axis?
• How does increased altitude typically affect air density?
• What is the primary impact of increased drag on an aircraft?
• Airfoil efficiency at various angles of attack is expressed by the ratio of:
• What is the result of exceeding critical angle of attack?
• What primarily determines the lift generated by an airfoil?
• What is the primary role of an aileron?
• What kind of airfoil has a mean camber line that is the same as the chord line?
• How does an aircraft's speed affect drag?
• What is the primary factor that affects induced drag?
• How does the wing configuration influence stall characteristics of an aircraft?
• What is the primary reason the T-6B yaws left when PCL is advanced during a climb?
• What is the effect of increased humidity on air density?
• What airfoil angle of attack setting is required to produce zero net lift on a positively cambered airfoil?
• What is the purpose of an engine nacelle?
• What is the function of an elevator on an aircraft?
• What effect do negative g-forces have during flight?
• What is the primary function of an aircraft fuselage?
• What does the term "wing loading" refer to in aviation?
• What is the effect of increased AOA during maximum endurance airspeed flight?
• What is a boundary layer?
• What happens to groundspeed with a tailwind during takeoff?
• What will be the result of an increase in the dynamic pressure within a closed system, according to Bernoulli's equation?
• In a climb, advancing the power control lever (PCL) will result in yawing to which direction?
• How does altitude generally affect aircraft performance?
• Which glide profile is best for maximizing time in the air during engine failure?
• What is the relationship between air density and lift generation?
• Flying at maximum endurance airspeed, what happens when AOA is increased to keep level flight?
• What is the change in angle of attack needed to maintain lift as true airspeed decreases?
• What is the significance of wingtip devices?
• What happens to total drag when an aircraft changes its velocity away from L/Dmax AOA?
• How does angle of attack affect lift?
• When altitude increases, which aircraft aspect does NOT directly require change?
• What is the effect of increased density on lift, assuming all other factors remain constant?
• Which factor does NOT affect the lift generated by an airfoil?
• What is the name of the angle between the chord line of an airfoil and the relative wind?
• What are the four fundamental forces acting on an aircraft in flight?
• How do spoilers influence flight dynamics?
• What does the term "aerodynamic profile" refer to?
• In a skid, what happens to the turn radius and turn rate?
• If true airspeed is adjusted for wind, what is the result?
• What forces act on an aircraft in flight?
• Which condition causes the most severe wake turbulence while landing?
• How will placing tip tanks on the wings affect drag potential (DP) or induced drag (Di)?
• How does an aircraft maintain controlled flight?
• The total aerodynamic drag on an aircraft is a sum of which two types of drag?
• What is necessary to maintain flight stability at high altitudes?
• What determines the most altitude gained in a given time?
• What atmospheric conditions would provide the greatest air density?
• What happens when the angle of attack exceeds the critical angle?
• Pitch is defined as the motion of the longitudinal axis about which axis?
• What is true about equilibrium flight?
• Which surface is primarily responsible for maintaining roll stability?
• What force relationship must exist for an aircraft to maintain equilibrium flight?
• Which factor increases the stall speed of an aircraft?
• How is stagnation pressure affected as an aircraft gains altitude?
• What primary challenge do pilots face with lift at higher altitudes?
• What is considered the optimal flight speed for cruising efficiency?
• Which equation expresses the General Gas Law?
• What is true airspeed's relationship with wind during takeoff?
• What is "ground effect" in relation to aircraft performance?
• Which of the following is an essential consideration for pilots operating at high altitudes?
• What contributes to a decrease in lift at excessive angles of attack?
• What is the primary function of the leading edge of a wing?
• What does an increase in angle of attack (AOA) beyond a certain point cause on a positively cambered airfoil?
• How does aspect ratio influence an aircraft's wings?
• Define laminar flow in aerodynamics.