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Exam simulation Principles of Flight - ATPL - Airline Transport Pilot license

Exam simulation ATPL Principles of Flight 120 questions on 120 minutes

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1 - One disadvantage of wing sweep is the stalling characteristics. At the stall:
2 - The units of wing loading (I) W / S and (II) dynamic pressure q are:
3 - Ground effect has the following influence on the landing distance:
4 - The formula for the Mach Number is: (a= speed of sound)
5 - Which statement with respect to the speed of sound is correct?
6 - In what flight phase are the outboard ailerons (if present) not operated?
7 - The point, where the single resultant aerodynamic force acts on an aerofoil, is called:
8 - A body is placed in a certain airstream. The density of the airstream decreases to half of the original value. The aerodynamic drag will decrease with a factor:
9 - Which one of the following systems suppresses the tendency to 'Dutch roll'?
10 - The unit of density is:
11 - How can wing flutter be prevented?
12 - An aeroplane has the following flap positions: 0°, 15°, 30°, 45°. Slats can also be selected. Generally speaking, which selection provides the highest positive contribution to the CLMAX?
13 - The use of a slot in the leading edge of the wing enables the aeroplane to fly at a slower speed because:
14 - Interference drag is the result of:
15 - The aft movement of the centre of pressure during acceleration through the transonic range will:
16 - Which line represents the total drag line of an aeroplane?
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17 - Which of the following statements about the stall of a straight wing aeroplane is correct?
18 - Increasing the number of propeller blades will:
19 - In a convergent tube with an incompressible sub-sonic airflow, the following pressure changes will occur: Ps = static pressure. Pdyn = dynamic pressure. Ptot = total pressure.
20 - The stall speed in a 60° banked turn increases by the following factor:
21 - Vortex generators:
22 - The induced drag coefficient, CDi is proportional to:
23 - A jet transport aeroplane exhibits pitch up when thrust is suddenly increased from an equilibrium condition, because the thrust line is below the:
24 - The SI units of air density (I) and force (II) are:
25 - The polar curve of an aerofoil is a graphic relation between:
26 - The effects of very heavy rain (tropical rain) on the aerodynamic characteristics of an aeroplane are:
27 - Consider an aeroplane with: 1 a trim tab. 2 fully powered hydraulic controls and an adjustable horizontal stabiliser. For both cases and starting from a trimmed condition, how will the neutral position of the control column change, after trimming for a speed increase?
28 - High speed buffet is induced by
29 - The diagram shows the parameter X versus TAS. If a horizontal flight is considered the axis X shows
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30 - When air has passed through a shock wave the local speed of sound is:
31 - For a positive cambered aerofoil, the CL-alpha curve intersects the vertical CL axis:
32 - Rolling is the rotation of the aeroplane about the:
33 - 'Flutter' may be caused by:
34 - A slotted flap will increase the CLmax by:
35 - What is the limit load factor of a large transport aeroplane?
36 - Bernoulli's law states: (note: rho is the mean sea level density under ISA conditions; pstat is static pressure; pdyn is dynamic pressure; ptot is total pressure)
37 - Mcrit is the free stream Mach Number at which:
38 - Trailing edge flap extension will:
39 - An aeroplane performs a continuous descent with 160 KT IAS and 1000 fpm vertical speed. In this condition:
40 - High Aspect Ratio, as compared with low Aspect Ratio, has the effect of:
41 - The vane of a stall warning system with a flapper switch is activated by the change of the:
42 - A line connecting the leading edge and trailing edge midway between the upper and lower surface of an aerofoil. This definition is applicable for:
43 - If an aeroplane is accelerated from subsonic to supersonic speeds, the centre of pressure will move:
44 - Considering a positive cambered aerofoil, the pitching moment when CL = 0 is:
45 - If you push forward the RPM lever of a constant speed propeller during a glide with idle power and constant speed, the propeller pitch will:
46 - Which aeroplane behaviour will be corrected by a yaw damper?
47 - Which of the following statements about the difference between Krueger flaps and slats is correct?
48 - If in a two-dimensional incompressible and subsonic flow, the streamlines converge the static pressure in the flow will:
49 - A CG location beyond the aft limit leads to:
50 - By what percentage does VA (EAS) alter when the aeroplane's weight decreases by 19%?
51 - For a fixed-pitch propeller in flight at a given TAS, the blade angle of attack will:
52 - An aeroplane exhibits static longitudinal stability, if, when the angle of attack changes:
53 - Air passes a normal shock wave. Which of the following statements is correct?
54 - The consequences of exceeding Mcrit in a swept-wing aeroplane may be: (assume no corrective devices, straight and level flight)
55 - One important advantage the turbulent boundary layer has over the laminar layer is that:
56 - The function of the slot between an extended slat and the leading edge of the wing is to:
57 - Positive static longitudinal stability means that a:
58 - An aeroplane has a stalling speed of 100 KT in a steady level flight. When the aeroplane is flying a level turn with a load factor of 1.5, the stalling speed is:
59 - Which of the following statements about stall speed is correct?
60 - The lift formula is: (rho = density)
61 - In the transonic range the aeroplane characteristics are strongly determined by:
62 - What is the approximate value of the lift of an aeroplane at a gross weight of 50000 N, in a horizontal coordinated 45 degrees banked turn?
63 - The stalling speed in IAS will change according to the following factors:
64 - A jet aeroplane equipped with inboard and outboard ailerons is cruising at its normal cruise Mach number. In this case
65 - Given an initial condition in straight and level flight with a speed of 1.4 VS. The maximum bank angle attainable without stalling in a steady co-ordinated turn, whilst maintaining speed and altitude, is approximately:
66 - Consider an aerofoil with a certain camber and a positive angle of attack. At which location will the highest flow velocities occur?
67 - If the continuity equation is applicable, what will happen to the air density (rho) if the cross sectional area of a tube changes? (low speed, subsonic and incompressible flow)
68 - The positive manoeuvring limit load factor for a large jet transport aeroplane with flaps extended is:
69 - Which load factor determines VA?
70 - When a jet transport aeroplane takes off with the CG at the forward limit and the trimmable horizontal stabiliser (THS) is positioned at the maximum allowable nose up position for take- off:
71 - Does the pitch angle of a constant speed propeller alter in medium horizontal turbulence?
72 - The manoeuvring speed VA expressed in indicated airspeed, of a transport aeroplane:
73 - Which kind of boundary layer has the strongest change in velocity close to the surface?
74 - What increases the stalling angle of attack? Use of:
75 - What is the position of the elevator in relation to the trimmable horizontal stabiliser of a power assisted aeroplane that is in trim?
76 - Which formula or equation describes the relationship between force (F), acceleration (a) and mass (m)?
77 - Dangerous stall characteristics, in large transport aeroplanes that require stick pushers to be installed, include:
78 - Vortex generators on the upper side of the wing:
79 - To increase the critical Mach number a conventional aerofoil should
80 - Extension of FOWLER type trailing edge lift augmentation devices, will produce:
81 - On a symmetrical aerofoil, the pitching moment for which CL = 0 is:
82 - Which statement about a jet transport aeroplane is correct during take-off with the cg at the forward limit and the trimmable horizontal stabiliser (THS) positioned at the maximum allowable aeroplane nose down position?
83 - Positive static lateral stability is the tendency of an aeroplane to:
84 - Which of the following situations leads to a decreasing stall speed (IAS)?
85 - How will the density and static temperature change in a supersonic flow from a position in front of a shock wave to behind it?
86 - In which situation would the wing lift of an aeroplane in straight and level flight have the highest value?
87 - If you pull back the RPM lever of a constant speed propeller during a glide with idle power and constant speed, the propeller pitch will:
88 - Assuming ISA conditions, climbing at a constant Mach Number up to FL 350 the TAS will:
89 - 'Tuck under' may happen at:
90 - When power assisted controls are used for pitch control:
91 - The flight Mach number is 0.8 and the TAS is 400 kts. The speed of sound is:
92 - The (subsonic) static pressure:
93 - Which statement is correct about a normal shock wave?
94 - Which of the following wing planforms produces the lowest induced drag? (all other relevant factors constant)
95 - An aeroplane is provided with spoilers and in- and outboard ailerons. Roll control during cruise is provided by:
96 - When Fowler type trailing edge flaps are extended at a constant angle of attack, the following changes will occur:
97 - Which point shown in the figure corresponds with CL for minimum horizontal flight speed?
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98 - The Mean Aerodynamic Chord (MAC) for a given wing of any planform is
99 - Which of the following wing planforms gives the highest local lift coefficient at the wing root?
100 - The maximum aft position of the centre of gravity is, amongst others, limited by the:
101 - On a un-swept wing, when the aerofoil is accelerated from subsonic to supersonic speeds, the aerodynamic centre:
102 - By what percentage does the lift increase in a level turn at 45° angle of bank, compared to straight and level flight?
103 - Which statement is correct in respect of CL and angle of attack?
104 - In what way do (1) induced drag and (2) parasite drag alter with increasing speed in straight and level flight?
105 - To be able to predict compressibility effects you have to determine the:
106 - VMO:
107 - An aeroplane has the following flap settings: 0°, 15°, 30° and 45°. Slats can also be selected. Which of the following selections will most adversely affect the CL / CD ratio?
108 - What can happen to the aeroplane structure flying at a speed just exceeding VA?
109 - The lift formula is:
110 - What will happen in ground effect?
111 - Bernoulli's equation can be written as: (pt= total pressure, ps = static pressure and q=dynamic pressure)
112 - The positive manoeuvring limit load factor for a light aeroplane in the utility category in the clean configuration is:
113 - The true airspeed (TAS) is:
114 - In twin-engine aeroplanes with right turning propellers
115 - Examples of aerodynamic balancing of control surfaces are:
116 - Which phenomenon is counteracted with differential aileron deflection?
117 - Which of the following statements about dihedral is correct?
118 - If you increase the propeller pitch during a glide with idle-power at constant IAS the lift to drag ratio will
119 - What data may be obtained from buffet onset boundary data?
120 - In straight and level flight, as speed is reduced:
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