A330 L&B - ATA 51, ATA 52

What type of structure is the Nose Landing Gear bay in the aircraft fuselage?. An integrally machined structural bay reinforced with members and attached to fuselage frames. A removable composite compartment installed only to provide access to maintenance tasks. An aerodynamic fairing structure designed mainly to reduce drag during flight.

Which option correctly identifies the five main sections of the aircraft fuselage?. Nose forward fuselage, forward fuselage, center fuselage, rear fuselage and cone/rear fuselage. Nose forward fuselage, forward fuselage, center fuselage, wing center section and tail cone section. Nose forward fuselage, cockpit fuselage, center fuselage, aft fuselage and rear cone section.

At which fuselage frame is the forward jacking point located?. At Frame ten (10), forward of the nose landing gear bay area. At Frame twelve (12), inside the nose landing gear bay structure. At Frame fifteen (15), close to the avionics compartment access area.

How many structural fuselage sections are used to identify the aircraft fuselage structure?. Ten structural fuselage sections. Eight structural fuselage sections. Twelve structural fuselage sections.

What structural design is typically used in the construction of the aircraft fuselage?. A conventional aluminum alloy structure with skin panels reinforced by frames and stringers. A composite sandwich structure made of carbon skins bonded to a honeycomb core. A titanium monolithic shell reinforced internally with bonded composite ribs.

How can a technician distinguish between a longitudinal lap joint and a circumferential lap joint on the fuselage skin?. Both joints typically have three rivet rows, but the rivets run along the fuselage for longitudinal joints and around the fuselage for circumferential joints. Longitudinal lap joints have two rivet rows, while circumferential lap joints normally have four rivet rows around the skin panel. Longitudinal lap joints use a single rivet row, while circumferential lap joints use multiple staggered rivet rows around the frame.

What is the main function of the rear pressure bulkhead in the aircraft fuselage?. To separate the pressurized fuselage from the unpressurized tail cone section.  To support the attachment structure of the vertical stabilizer and rudder. To reinforce the fuselage skin panels in the rear cargo compartment area.

What material is primarily used in the construction of the rear pressure bulkhead?. Carbon fiber composite panel reinforced with integrated stiffeners. Aluminum alloy plate reinforced with circumferential frames. Titanium alloy structure with bonded composite stiffeners.

What is the purpose of the diagonal support struts in the rear fuselage at the THS attachment area?. To increase the mechanical strength of the structure supporting the THS attachment fittings. To support the aerodynamic fairings installed around the horizontal stabilizer root and THS APROM. To transmit hydraulic loads from the trim actuator to the fuselage structure.

Can the tail cone of the aircraft fuselage be removed as a unit? *. Yes, the tail cone can be removed as a complete unit for maintenance access.  No, the tail cone is permanently integrated with the rear fuselage structure. Yes, but only the external fairing panels can be removed individually.

How many attachment points connect the pylon to the wing and how many connect the engine to the pylon?. Three attachments connect the pylon to the wing and two attachments connect the engine to the pylon. Two attachments connect the pylon to the wing and three attachments connect the engine to the pylon. Four attachments connect the pylon to the wing and two attachments connect the engine to the pylon.

What is the function of Rib twelve (12) in the engine pylon structure? *. It provides the forward attachment structure that connects the pylon to the wing. It supports the rear engine mount that transmits vertical loads to the pylon. It forms part of the aerodynamic fairing surrounding the engine nacelle.

Which components form the three engine mount elements used to support the engine on the pylon?. The front mount, the rear mount and the thrust link. The forward pylon fitting, the wing attach fitting and the keel beam support. The fan frame support, the nacelle hinge fitting and the thrust reverser support.

What material is mainly used in the leading edge panels of the Trimmable Horizontal Stabilizer (THS)?. CFRP sandwich construction panels supported by leading edge ribs. Aluminum alloy panels reinforced with titanium stiffeners. GFRP panels bonded to a honeycomb aluminum core.

What materials are used in the structure of the fuel tank located in the Trimmable Horizontal Stabilizer (THS)?. Aluminum alloy structure combined with CFRP monolithic components. Titanium alloy structure combined with glass fiber composite panels. Aluminum honeycomb sandwich panels combined with steel reinforcements.

What materials are used in the horizontal stabilizer structure and how many main attachment fittings connect it to the fuselage?. composite structure mainly made of CFRP with six main attachment fittings.  An aluminum alloy structure with four main attachment fittings in CFRP. A titanium alloy structure with eight main attachment fittings in GFRP.

What is the purpose of the aluminum alloy strap installed on the tip of the vertical stabilizer?. To provide lightning strike protection at the top of the vertical stabilizer. To reinforce the attachment of the rudder hinge fittings to the stabilizer tip. To support the installation of the static dischargers on the trailing edge.

Which window pane normally carries the cabin pressure loads in a typical aircraft passenger window?. The inner pane that seals the cabin environment. The middle structural pane that carries the pressure load. The outer pane that protects against external impacts.

What is the purpose of the small hole located in the inner pane of an aircraft cabin window?. To equalize pressure between the middle pane and the cabin interior. To drain moisture that accumulates between the window panes. To allow ventilation between the cabin air and the outside atmosphere.

Why does the passenger door viewing window have a magnifying effect?. To enlarge the external view so the crew can better observe the area before opening the door. To increase the structural resistance of the door during cabin pressurization. To compensate optical distortion caused by cabin lighting conditions.

What is the function of the lower triform fitting in the wing root joint?. To connect the center wing box panels, outer wing bottom skin panels and Rib 1. To attach the outer wing spars directly to the fuselage structure. To support the fuel tank structure inside the center wing box.

How many access covers (panels) are installed on the A330 CEO outer wing box to access the fuel tank?. Thirty-three (33) access covers installed on the bottom skin panels. Thirty-five (35) access covers installed on the bottom skin panels. Twenty-one (21) access covers installed on the bottom skin panels.

Which structural components are part of the Main Landing Gear (MLG) attachment structure on the A330?. Gear support rib, pintle fitting, side stay fitting and jack fitting. Rear spar fitting, torque link bracket and actuator hinge fitting. Wing rib fitting, drag brace actuator and center spar bracket.

Into how many sections is the wing rear spar divided?. Three sections: inner rear spar, middle rear spar and outer rear spar. Two sections: front rear spar and aft rear spar sections. Four sections: inner, center, outer and trailing rear spar.

How many flaps are installed on each wing of the A330?. Two flaps installed on each wing trailing edge.  Three flaps installed on each wing trailing edge. Four flaps installed on each wing trailing edge.