AFAB 115 Final Study Guide Questions
What happens by eliminating the gaps between components? - Answer The strength of
the aircraft structure can be enhanced.
What can be utilized to meet wide area fill requirements for maintaining smooth surfaces, and
for accurate dimensional control of aircraft OML (Outside Mold Line) structures for the military
aircraft production line? - Answer Liquid shim
What does the OML help determine? - Answer Where the jets sits in margin (the range of
stealth capability that the aircraft is required to meet) and allows LO (Low Observables) teams
to identify damages to the stealth aircraft coating or structure.
When do LO teams and technicians perform routine OML inspections? - Answer during aircraft
manufacture and service
What does the OML inspection involve? - Answer checking each jet's signature, which makes an
aircraft appear on digital detection devices
True or false: A very low signature equals a very low stealth capability leaving the jet exposed
to enemy radar - Answer False
(A very high signature equals a very low stealth)
What do LO digital analysis outcomes provide? - Answer Assembly guidance of skins, panels
and doors and can provide shim thickness and location information for OML control.
Where is liquid shim used on an airplane? - Answer The airframe, wings, and tail section
, What type of material is liquid shim? - Answer An epoxy-based materials that possess
extremely high compressive strengths.
On what material is liquid shim typically used? - Answer Composites in aircraft, since
composites do not lend themselves to grinding and fitting methods commonly used in metal
fabrication, shims both in solid and liquid form are used to eliminate gaps.
What forms does shim come in? - Answer Liquid and solid
What does the aircraft structures basic construction consists of? - Answer The fuselage, wings,
empennage, landing gear, and powerplants.
What should the bearing strength of the sheet metal and the shear strength of the rivet be?
- Answer relatively equal
True or False: the shear strength of the rivet must be greater than the bearing strength of
the sheet metal - Answer True
What are the parts of an aircraft structure designed to carry loads and or stresses called? -
Answer structural members
What is a spar? - Answer The wings principle structural member
What are the Ailerons, Rudder, and Elevator? - Answer The three Primary flight
Control Surfaces of an aircraft
What are the three secondary control surfaces? - Answer The Slats, Spoilers, and Flaps.
What are the purposes of Slats and Flaps? - Answer To increase the camber of a wing,
and increase lift at slower speeds
What happens by eliminating the gaps between components? - Answer The strength of
the aircraft structure can be enhanced.
What can be utilized to meet wide area fill requirements for maintaining smooth surfaces, and
for accurate dimensional control of aircraft OML (Outside Mold Line) structures for the military
aircraft production line? - Answer Liquid shim
What does the OML help determine? - Answer Where the jets sits in margin (the range of
stealth capability that the aircraft is required to meet) and allows LO (Low Observables) teams
to identify damages to the stealth aircraft coating or structure.
When do LO teams and technicians perform routine OML inspections? - Answer during aircraft
manufacture and service
What does the OML inspection involve? - Answer checking each jet's signature, which makes an
aircraft appear on digital detection devices
True or false: A very low signature equals a very low stealth capability leaving the jet exposed
to enemy radar - Answer False
(A very high signature equals a very low stealth)
What do LO digital analysis outcomes provide? - Answer Assembly guidance of skins, panels
and doors and can provide shim thickness and location information for OML control.
Where is liquid shim used on an airplane? - Answer The airframe, wings, and tail section
, What type of material is liquid shim? - Answer An epoxy-based materials that possess
extremely high compressive strengths.
On what material is liquid shim typically used? - Answer Composites in aircraft, since
composites do not lend themselves to grinding and fitting methods commonly used in metal
fabrication, shims both in solid and liquid form are used to eliminate gaps.
What forms does shim come in? - Answer Liquid and solid
What does the aircraft structures basic construction consists of? - Answer The fuselage, wings,
empennage, landing gear, and powerplants.
What should the bearing strength of the sheet metal and the shear strength of the rivet be?
- Answer relatively equal
True or False: the shear strength of the rivet must be greater than the bearing strength of
the sheet metal - Answer True
What are the parts of an aircraft structure designed to carry loads and or stresses called? -
Answer structural members
What is a spar? - Answer The wings principle structural member
What are the Ailerons, Rudder, and Elevator? - Answer The three Primary flight
Control Surfaces of an aircraft
What are the three secondary control surfaces? - Answer The Slats, Spoilers, and Flaps.
What are the purposes of Slats and Flaps? - Answer To increase the camber of a wing,
and increase lift at slower speeds
