Quiz
01. L01 (unidad 1 profesor)
Questions in this quiz (28)
1Q1. It is not a function of the airframe
- ATransmit the loads
- BAllow the taxiing of the aircraft in the airport
- CProvide the aerodynamic configuration in every flight condition
- DProtect the payload from the environmental conditions
2Q2. The use of biplanes at the beginning of the aviation was due to
- AStructural considerations
- BAerodynamic considerations
- CA and B are true
- DA and B are false
3Q3. The failure of the Langley flight in 1903 was a consequence of
- AA defect of velocity to generate enough lift force
- BA lack of wing stiffness
- CA wrong aerodynamic wing design
- DThe interference between the front and rear wings
4Q4. The buckling is a phenomenon that appear in (i) structures subjected to (ii) loads
- A(i) wide (ii) tension
- B(i) wide (ii) compression
- C(i) thin (ii) tension
- D(i) thin (ii) compression
5Q1. What does the AXIAL STRESS consist on?
- AIt occurs when the aircraft is pressurised and the pressure hull lengthens.
- BStress raised in a container when it is filled, where the contents act to expand the container.
- CIt occurs when an structure is subject to several different loads.
- DIt produces Stress Cracks due to tension and compression.
6Q2. The factor that doesn’t affect creep (elongation) is:
- AMaterial type
- BTemperature applied
- CDuration of the load
- DType of object that produces it
7Q3. Which of the following events does not produce SHOCK LOADS?
- ABird strike directly on to the compressor blades of a jet engine
- BHeavy landing
- COld rubber band stretches and then fails before the normal load is applied
- DHigh intensity wind gust
8Q4. What is DESIGN LIMIT LOAD OR DLL
- AThis is the maximum load that the aircraft designer or component manufacturer expects the airframe or component to be subject to in operation.
- BAfter the aircraft has been subject to this load, there may be permanent deformation of the aircraft’s structure, but it must not collapse.
- CIs equal to the safety factor multiplied by 2
- DLoad which produces a catastrophic failure
9Q5. The Safe life is based on:
- ALandings
- BPressurisation cycles
- CCalendar time
- DAll the above
10Q6. About FAIL-SAFE STRUCTURE:
- AStructure safe because one strong takes the entire load.
- BAllows the structure to continue operating normally up to the static ultimate permanently.
- CDamage would be found by luck because the structure does not show any problem.
- DExtra structural items have a weight penalty, and this has led to a change toward designing damage-tolerant structures.
11Q7. DUL = Design Ultimate Load magnitude order in airplanes is:
- AX4
- BX5.5
- CX10
- DNone of above
12Q.8 FRAME CONSTRUCTION in airplanes involves the use of mainly:
- ASEMI-MONOCOQUE STRUCTURES
- BMONOCOQUE STRUCTURES
- CBICOQUE STRUCTURES
- DBULB SHAPE STRUCTURES
13Q.9 In regard to the pressurization of the plane:
- AIt has a Front Pressure Bulkhead
- BIt has a TOP Pressure Bulkhead
- CThe plane is completely pressurized to avoid internal forces
- DThe Pressure is different depending of the seat that you occupy
14Q.10.PASSENGER CABIN WINDOWS
- AAre essential for temperature regulation
- BThe higher pressure of the outside can make them break in mid air
- CAre non-FAIL-SAFE STRUCTURE
- DAre points where the structure weakens
15Q.11 ALUMINUM ALLOYS used in aviation:
- A2024
- B4070
- C7075
- DA and C are correct
16Q.12 Which of the COMPONENTS OF WING STRUCTURE has holes to let fuel go throw?
- ASpars
- BRibs
- CStringers
- DSkin
17Q.13 Which of these resins are used in aviation?
- ABLU-TACK
- BPTFE
- CA and B are true
- DA and B are false
18Q.14 Which of the following materials has been introduced in contemporany times into the structure of new airplanes?
- AAluminium
- BSteel Phosphate
- CComposites
- DZinc plus Gold
19Q.15 According to the shape of fuselages, in which type of fuselage is common to find the area rule?
- ASubsonic
- BSupersonic
- CBoth of them
- DNone is correct
20Q.16 Which are the three spars normally used in a large aircraft?
- AFront spar, forward spar and main spar
- BFront spar, rear spar and auxiliary spar
- CForward spar, main spar and auxiliary spar
- DFront spar, forward spar and rear spar
21Q.17 The torsion box:
- AIncreases the rigidity of the wing and resists the twisting and bending motion
- BIncreases the mass of material used during the construction and due to this the weight is increased
- CIs formed between the spars and the stringers
- DIs the best structure to resist the compression forces
22Q.18 From JAR 23s. Aircraft are categorised into 3 groups:
- ANormal, fixed wing aircraft and rotatory wing aircraft
- BNormal, utility and aerobatic
- CNormal, aerobatic and fixed wing aircraft
- DNormal, utility and rotatory wing aircraft
23Q. 19 In combat aircraft the nose and forward fuselage is used to:
- Aplace the main intake ducts for engines
- BMinimize the length
- CPlace secondary fuel tanks
- DRadar and laser-ranging installations
24Q.20 According to monocoque structures, choose the right answer:
- AAre tubes with horizontal armours
- BThe skin only supports ground loads
- CAre used in missiles
- DAre easy to design
25Q.21 Which one is the main structural element that gives longitudinal strength?
- AStringers
- BFormers
- CLongerons
- DFrames
26Q.22 What elements support the pressure loads?
- ABulkhead and skin
- BStringers
- CLongerons
- DLongerons and frames
27Q.23 The main objective of winglets is:
- ADelay the critical Mach
- BIncrease the stall speed
- CAesthetic reasons
- DReduce wing tip vortices
- EMal porque pone que es Aesthetic reasons
28Q. 24 According to wing mounted engines:
- AEngines are joined to the wing structure by a pylon
- BThe pylon is attached to the front and mains spars
- CIn flight, the weight of the engine balances the aerodynamic loads (lift)
- DAll of them are right
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- Tema 1 Avionics Quiz on 01. L01 (unidad 1 profesor), created by Jose Antonio Vazquez on 04/03/2018.
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- Jose Antonio Vazquez
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- Español
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