12609634
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Quiz von Jose Antonio Vazquez, aktualisiert more than 1 year ago
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Erstellt von Jose Antonio Vazquez
vor mehr als 6 Jahre
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Frage 1
Frage
Q1. It is not a function of the airframe
Antworten
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Transmit the loads
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Allow the taxiing of the aircraft in the airport
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Provide the aerodynamic configuration in every flight condition
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Protect the payload from the environmental conditions
Frage 2
Frage
Q2. The use of biplanes at the beginning of the aviation was due to
Antworten
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Structural considerations
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Aerodynamic considerations
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A and B are true
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A and B are false
Frage 3
Frage
Q3. The failure of the Langley flight in 1903 was a consequence of
Antworten
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A defect of velocity to generate enough lift force
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A lack of wing stiffness
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A wrong aerodynamic wing design
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The interference between the front and rear wings
Frage 4
Frage
Q4. The buckling is a phenomenon that appear in (i) structures subjected to (ii) loads
Antworten
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(i) wide (ii) tension
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(i) wide (ii) compression
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(i) thin (ii) tension
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(i) thin (ii) compression
Frage 5
Frage
Q1. What does the AXIAL STRESS consist on?
Antworten
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It occurs when the aircraft is pressurised and the pressure hull lengthens.
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Stress raised in a container when it is filled, where the contents act to expand the container.
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It occurs when an structure is subject to several different loads.
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It produces Stress Cracks due to tension and compression.
Frage 6
Frage
Q2. The factor that doesn’t affect creep (elongation) is:
Antworten
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Material type
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Temperature applied
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Duration of the load
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Type of object that produces it
Frage 7
Frage
Q3. Which of the following events does not produce SHOCK LOADS?
Antworten
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Bird strike directly on to the compressor blades of a jet engine
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Heavy landing
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Old rubber band stretches and then fails before the normal load is applied
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High intensity wind gust
Frage 8
Frage
Q4. What is DESIGN LIMIT LOAD OR DLL
Antworten
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This is the maximum load that the aircraft designer or component manufacturer expects the airframe or component to be subject to in operation.
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After the aircraft has been subject to this load, there may be permanent deformation of the aircraft’s structure, but it must not collapse.
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Is equal to the safety factor multiplied by 2
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Load which produces a catastrophic failure
Frage 9
Frage
Q5. The Safe life is based on:
Antworten
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Landings
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Pressurisation cycles
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Calendar time
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All the above
Frage 10
Frage
Q6. About FAIL-SAFE STRUCTURE:
Antworten
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Structure safe because one strong takes the entire load.
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Allows the structure to continue operating normally up to the static ultimate permanently.
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Damage would be found by luck because the structure does not show any problem.
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Extra structural items have a weight penalty, and this has led to a change toward designing damage-tolerant structures.
Frage 11
Frage
Q7. DUL = Design Ultimate Load magnitude order in airplanes is:
Antworten
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X4
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X5.5
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X10
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None of above
Frage 12
Frage
Q.8 FRAME CONSTRUCTION in airplanes involves the use of mainly:
Antworten
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SEMI-MONOCOQUE STRUCTURES
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MONOCOQUE STRUCTURES
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BICOQUE STRUCTURES
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BULB SHAPE STRUCTURES
Frage 13
Frage
Q.9 In regard to the pressurization of the plane:
Antworten
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It has a Front Pressure Bulkhead
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It has a TOP Pressure Bulkhead
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The plane is completely pressurized to avoid internal forces
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The Pressure is different depending of the seat that you occupy
Frage 14
Frage
Q.10.PASSENGER CABIN WINDOWS
Antworten
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Are essential for temperature regulation
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The higher pressure of the outside can make them break in mid air
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Are non-FAIL-SAFE STRUCTURE
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Are points where the structure weakens
Frage 15
Frage
Q.11 ALUMINUM ALLOYS used in aviation:
Antworten
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2024
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4070
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7075
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A and C are correct
Frage 16
Frage
Q.12 Which of the COMPONENTS OF WING STRUCTURE has holes to let fuel go throw?
Antworten
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Spars
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Ribs
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Stringers
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Skin
Frage 17
Frage
Q.13 Which of these resins are used in aviation?
Antworten
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BLU-TACK
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PTFE
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A and B are true
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A and B are false
Frage 18
Frage
Q.14 Which of the following materials has been introduced in contemporany times into the structure of new airplanes?
Antworten
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Aluminium
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Steel Phosphate
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Composites
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Zinc plus Gold
Frage 19
Frage
Q.15 According to the shape of fuselages, in which type of fuselage is common to find the area rule?
Antworten
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Subsonic
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Supersonic
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Both of them
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None is correct
Frage 20
Frage
Q.16 Which are the three spars normally used in a large aircraft?
Antworten
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Front spar, forward spar and main spar
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Front spar, rear spar and auxiliary spar
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Forward spar, main spar and auxiliary spar
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Front spar, forward spar and rear spar
Frage 21
Frage
Q.17 The torsion box:
Antworten
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Increases the rigidity of the wing and resists the twisting and bending motion
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Increases the mass of material used during the construction and due to this the weight is increased
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Is formed between the spars and the stringers
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Is the best structure to resist the compression forces
Frage 22
Frage
Q.18 From JAR 23s. Aircraft are categorised into 3 groups:
Antworten
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Normal, fixed wing aircraft and rotatory wing aircraft
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Normal, utility and aerobatic
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Normal, aerobatic and fixed wing aircraft
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Normal, utility and rotatory wing aircraft
Frage 23
Frage
Q. 19 In combat aircraft the nose and forward fuselage is used to:
Antworten
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place the main intake ducts for engines
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Minimize the length
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Place secondary fuel tanks
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Radar and laser-ranging installations
Frage 24
Frage
Q.20 According to monocoque structures, choose the right answer:
Antworten
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Are tubes with horizontal armours
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The skin only supports ground loads
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Are used in missiles
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Are easy to design
Frage 25
Frage
Q.21 Which one is the main structural element that gives longitudinal strength?
Antworten
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Stringers
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Formers
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Longerons
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Frames
Frage 26
Frage
Q.22 What elements support the pressure loads?
Antworten
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Bulkhead and skin
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Stringers
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Longerons
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Longerons and frames
Frage 27
Frage
Q.23 The main objective of winglets is:
Antworten
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Delay the critical Mach
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Increase the stall speed
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Aesthetic reasons
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Reduce wing tip vortices
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Mal porque pone que es Aesthetic reasons
Frage 28
Frage
Q. 24 According to wing mounted engines:
Antworten
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Engines are joined to the wing structure by a pylon
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The pylon is attached to the front and mains spars
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In flight, the weight of the engine balances the aerodynamic loads (lift)
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All of them are right
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