01. L01 (unidad 1 profesor)

Descripción

Tema 1 Avionics Test sobre 01. L01 (unidad 1 profesor), creado por Jose Antonio Vazquez el 04/03/2018.
Jose Antonio Vazquez
Test por Jose Antonio Vazquez, actualizado hace más de 1 año
Jose Antonio Vazquez
Creado por Jose Antonio Vazquez hace más de 6 años
102
5

Resumen del Recurso

Pregunta 1

Pregunta
Q1. It is not a function of the airframe
Respuesta
  • Transmit the loads
  • Allow the taxiing of the aircraft in the airport
  • Provide the aerodynamic configuration in every flight condition
  • Protect the payload from the environmental conditions

Pregunta 2

Pregunta
Q2. The use of biplanes at the beginning of the aviation was due to
Respuesta
  • Structural considerations
  • Aerodynamic considerations
  • A and B are true
  • A and B are false

Pregunta 3

Pregunta
Q3. The failure of the Langley flight in 1903 was a consequence of
Respuesta
  • A defect of velocity to generate enough lift force
  • A lack of wing stiffness
  • A wrong aerodynamic wing design
  • The interference between the front and rear wings

Pregunta 4

Pregunta
Q4. The buckling is a phenomenon that appear in (i) structures subjected to (ii) loads
Respuesta
  • (i) wide (ii) tension
  • (i) wide (ii) compression
  • (i) thin (ii) tension
  • (i) thin (ii) compression

Pregunta 5

Pregunta
Q1. What does the AXIAL STRESS consist on?
Respuesta
  • It occurs when the aircraft is pressurised and the pressure hull lengthens.
  • Stress raised in a container when it is filled, where the contents act to expand the container.
  • It occurs when an structure is subject to several different loads.
  • It produces Stress Cracks due to tension and compression.

Pregunta 6

Pregunta
Q2. The factor that doesn’t affect creep (elongation) is:
Respuesta
  • Material type
  • Temperature applied
  • Duration of the load
  • Type of object that produces it

Pregunta 7

Pregunta
Q3. Which of the following events does not produce SHOCK LOADS?
Respuesta
  • Bird strike directly on to the compressor blades of a jet engine
  • Heavy landing
  • Old rubber band stretches and then fails before the normal load is applied
  • High intensity wind gust

Pregunta 8

Pregunta
Q4. What is DESIGN LIMIT LOAD OR DLL
Respuesta
  • This is the maximum load that the aircraft designer or component manufacturer expects the airframe or component to be subject to in operation.
  • After the aircraft has been subject to this load, there may be permanent deformation of the aircraft’s structure, but it must not collapse.
  • Is equal to the safety factor multiplied by 2
  • Load which produces a catastrophic failure

Pregunta 9

Pregunta
Q5. The Safe life is based on:
Respuesta
  • Landings
  • Pressurisation cycles
  • Calendar time
  • All the above

Pregunta 10

Pregunta
Q6. About FAIL-SAFE STRUCTURE:
Respuesta
  • Structure safe because one strong takes the entire load.
  • Allows the structure to continue operating normally up to the static ultimate permanently.
  • Damage would be found by luck because the structure does not show any problem.
  • Extra structural items have a weight penalty, and this has led to a change toward designing damage-tolerant structures.

Pregunta 11

Pregunta
Q7. DUL = Design Ultimate Load magnitude order in airplanes is:
Respuesta
  • X4
  • X5.5
  • X10
  • None of above

Pregunta 12

Pregunta
Q.8 FRAME CONSTRUCTION in airplanes involves the use of mainly:
Respuesta
  • SEMI-MONOCOQUE STRUCTURES
  • MONOCOQUE STRUCTURES
  • BICOQUE STRUCTURES
  • BULB SHAPE STRUCTURES

Pregunta 13

Pregunta
Q.9 In regard to the pressurization of the plane:
Respuesta
  • It has a Front Pressure Bulkhead
  • It has a TOP Pressure Bulkhead
  • The plane is completely pressurized to avoid internal forces
  • The Pressure is different depending of the seat that you occupy

Pregunta 14

Pregunta
Q.10.PASSENGER CABIN WINDOWS
Respuesta
  • Are essential for temperature regulation
  • The higher pressure of the outside can make them break in mid air
  • Are non-FAIL-SAFE STRUCTURE
  • Are points where the structure weakens

Pregunta 15

Pregunta
Q.11 ALUMINUM ALLOYS used in aviation:
Respuesta
  • 2024
  • 4070
  • 7075
  • A and C are correct

Pregunta 16

Pregunta
Q.12 Which of the COMPONENTS OF WING STRUCTURE has holes to let fuel go throw?
Respuesta
  • Spars
  • Ribs
  • Stringers
  • Skin

Pregunta 17

Pregunta
Q.13 Which of these resins are used in aviation?
Respuesta
  • BLU-TACK
  • PTFE
  • A and B are true
  • A and B are false

Pregunta 18

Pregunta
Q.14 Which of the following materials has been introduced in contemporany times into the structure of new airplanes?
Respuesta
  • Aluminium
  • Steel Phosphate
  • Composites
  • Zinc plus Gold

Pregunta 19

Pregunta
Q.15 According to the shape of fuselages, in which type of fuselage is common to find the area rule?
Respuesta
  • Subsonic
  • Supersonic
  • Both of them
  • None is correct

Pregunta 20

Pregunta
Q.16 Which are the three spars normally used in a large aircraft?
Respuesta
  • Front spar, forward spar and main spar
  • Front spar, rear spar and auxiliary spar
  • Forward spar, main spar and auxiliary spar
  • Front spar, forward spar and rear spar

Pregunta 21

Pregunta
Q.17 The torsion box:
Respuesta
  • Increases the rigidity of the wing and resists the twisting and bending motion
  • Increases the mass of material used during the construction and due to this the weight is increased
  • Is formed between the spars and the stringers
  • Is the best structure to resist the compression forces

Pregunta 22

Pregunta
Q.18 From JAR 23s. Aircraft are categorised into 3 groups:
Respuesta
  • Normal, fixed wing aircraft and rotatory wing aircraft
  • Normal, utility and aerobatic
  • Normal, aerobatic and fixed wing aircraft
  • Normal, utility and rotatory wing aircraft

Pregunta 23

Pregunta
Q. 19 In combat aircraft the nose and forward fuselage is used to:
Respuesta
  • place the main intake ducts for engines
  • Minimize the length
  • Place secondary fuel tanks
  • Radar and laser-ranging installations

Pregunta 24

Pregunta
Q.20 According to monocoque structures, choose the right answer:
Respuesta
  • Are tubes with horizontal armours
  • The skin only supports ground loads
  • Are used in missiles
  • Are easy to design

Pregunta 25

Pregunta
Q.21 Which one is the main structural element that gives longitudinal strength?
Respuesta
  • Stringers
  • Formers
  • Longerons
  • Frames

Pregunta 26

Pregunta
Q.22 What elements support the pressure loads?
Respuesta
  • Bulkhead and skin
  • Stringers
  • Longerons
  • Longerons and frames

Pregunta 27

Pregunta
Q.23 The main objective of winglets is:
Respuesta
  • Delay the critical Mach
  • Increase the stall speed
  • Aesthetic reasons
  • Reduce wing tip vortices
  • Mal porque pone que es Aesthetic reasons

Pregunta 28

Pregunta
Q. 24 According to wing mounted engines:
Respuesta
  • Engines are joined to the wing structure by a pylon
  • The pylon is attached to the front and mains spars
  • In flight, the weight of the engine balances the aerodynamic loads (lift)
  • All of them are right
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