EXAM COVERAGE SUMMARY
Material Properties & Characteristics
Mechanical properties: hardness, brittleness, malleability, ductility, elasticity, toughness,
density, fusibility, conductivity, contraction, expansion
Strength properties: tensile, compression, shear, torsial, strength-to-weight ratio
Corrosion resistance and material selection factors
Ferrous & Nonferrous Metals
Ferrous metals: iron as principal element, SAE numbering system
Nonferrous metals: aluminum, titanium, magnesium alloys
Advantages, disadvantages, and applications of each
Clad coating and protective treatments
Aircraft Drawings & Blueprint Reading
Line types: visible, hidden, center, dimension, extension, leader, phantom, break, cutting
plane
Drawing types: orthographic, auxiliary, sectional, phantom, exploded, schematic
Station diagrams, alignment diagrams, flat pattern layouts
Measurement systems and tolerances
Sheet Metal Layout & Fabrication
Bend terminology: BA, BM, F, MP, ML, BTL, SB, NA, BR
Layout tools: combination square, scribe, dividers, punches, compass
Cutting tools: snips, hacksaw, files, shears, saws
Forming equipment: stakes, brakes, slip roll, rotary machine
Stress relieving and edge finishing
Drilling & Fasteners
Drill bits: types, sizing systems (fractional, letter, number)
Drill presses and hand drilling techniques
Edge distance requirements and countersinking methods
Cleco fasteners and temporary securing
Rivets & Riveting
Solid shank rivets: types, head markings, measurement
, Rivet selection criteria and installation procedures
Rivet guns: types, operation, and applications
Bucking bars and rivet sets
Rivet removal procedures
Blind rivets: mechanical lock, friction lock
Special fasteners: Hi-Shear, Jo-Bolt, Hi-Lok
Aircraft Structures
Fuselage: types, components, reinforcements
Wings: construction, components
Rotary wings: construction and components
Tail group and empennage
Station reference systems
Aircraft Repairs
Damage classification and assessment
Scratch, crack, and dent repair methods
Patching and insertion techniques
Sealing repairs and corrosion prevention
Technical publications and references
SECTION 1: MATERIAL PROPERTIES (Questions 1-25)
1. What property describes a material's ability to resist abrasion, penetration, and distortion?
A) Toughness
B) Hardness
C) Malleability
D) Elasticity
Answer: B
Hardness is specifically defined as the ability to resist abrasions, penetrations, and distortion, making
it the correct choice for this material property.
2. Which property allows very little bending or shaping without shattering?
A) Ductility
B) Malleability
,C) Brittleness
D) Elasticity
Answer: C
Brittleness is characterized by materials that break or shatter when subjected to bending or shaping
forces, with very little deformation before failure.
3. What is the ability to be bent, flattened, or hammered without breaking called?
A) Ductility
B) Malleability
C) Toughness
D) Conductivity
Answer: B
Malleability specifically refers to the ability of a material to be bent, flattened, or hammered into
shapes without breaking or cracking.
4. Which property describes the ability to be bent permanently or twisted into various shapes
without breaking?
A) Malleability
B) Elasticity
C) Ductility
D) Hardness
Answer: C
Ductility is the ability of a material to undergo permanent deformation through bending or twisting
without fracturing.
5. What is the ability to return to its original shape called?
A) Elasticity
B) Plasticity
C) Toughness
D) Resilience
, Answer: A
Elasticity is the property that allows a material to return to its original shape after the removal of a
deforming force.
6. Which property describes the ability to withstand tearing or shearing forces?
A) Tensile strength
B) Toughness
C) Hardness
D) Compression strength
Answer: B
Toughness is the ability of a material to resist tearing or shearing, indicating its capacity to absorb
energy before failure.
7. What is the actual weight of material per cubic inch called?
A) Mass
B) Weight
C) Density
D) Specific gravity
Answer: C
Density is defined as the actual weight of a material per cubic inch, a critical property in aerospace
applications.
8. Which property refers to the ability to become a liquid when heated?
A) Conductivity
B) Fusibility
C) Fluidity
D) Viscosity
Answer: B
Fusibility is the ability of a material to become liquid when heated, essential for casting and welding
operations.
Material Properties & Characteristics
Mechanical properties: hardness, brittleness, malleability, ductility, elasticity, toughness,
density, fusibility, conductivity, contraction, expansion
Strength properties: tensile, compression, shear, torsial, strength-to-weight ratio
Corrosion resistance and material selection factors
Ferrous & Nonferrous Metals
Ferrous metals: iron as principal element, SAE numbering system
Nonferrous metals: aluminum, titanium, magnesium alloys
Advantages, disadvantages, and applications of each
Clad coating and protective treatments
Aircraft Drawings & Blueprint Reading
Line types: visible, hidden, center, dimension, extension, leader, phantom, break, cutting
plane
Drawing types: orthographic, auxiliary, sectional, phantom, exploded, schematic
Station diagrams, alignment diagrams, flat pattern layouts
Measurement systems and tolerances
Sheet Metal Layout & Fabrication
Bend terminology: BA, BM, F, MP, ML, BTL, SB, NA, BR
Layout tools: combination square, scribe, dividers, punches, compass
Cutting tools: snips, hacksaw, files, shears, saws
Forming equipment: stakes, brakes, slip roll, rotary machine
Stress relieving and edge finishing
Drilling & Fasteners
Drill bits: types, sizing systems (fractional, letter, number)
Drill presses and hand drilling techniques
Edge distance requirements and countersinking methods
Cleco fasteners and temporary securing
Rivets & Riveting
Solid shank rivets: types, head markings, measurement
, Rivet selection criteria and installation procedures
Rivet guns: types, operation, and applications
Bucking bars and rivet sets
Rivet removal procedures
Blind rivets: mechanical lock, friction lock
Special fasteners: Hi-Shear, Jo-Bolt, Hi-Lok
Aircraft Structures
Fuselage: types, components, reinforcements
Wings: construction, components
Rotary wings: construction and components
Tail group and empennage
Station reference systems
Aircraft Repairs
Damage classification and assessment
Scratch, crack, and dent repair methods
Patching and insertion techniques
Sealing repairs and corrosion prevention
Technical publications and references
SECTION 1: MATERIAL PROPERTIES (Questions 1-25)
1. What property describes a material's ability to resist abrasion, penetration, and distortion?
A) Toughness
B) Hardness
C) Malleability
D) Elasticity
Answer: B
Hardness is specifically defined as the ability to resist abrasions, penetrations, and distortion, making
it the correct choice for this material property.
2. Which property allows very little bending or shaping without shattering?
A) Ductility
B) Malleability
,C) Brittleness
D) Elasticity
Answer: C
Brittleness is characterized by materials that break or shatter when subjected to bending or shaping
forces, with very little deformation before failure.
3. What is the ability to be bent, flattened, or hammered without breaking called?
A) Ductility
B) Malleability
C) Toughness
D) Conductivity
Answer: B
Malleability specifically refers to the ability of a material to be bent, flattened, or hammered into
shapes without breaking or cracking.
4. Which property describes the ability to be bent permanently or twisted into various shapes
without breaking?
A) Malleability
B) Elasticity
C) Ductility
D) Hardness
Answer: C
Ductility is the ability of a material to undergo permanent deformation through bending or twisting
without fracturing.
5. What is the ability to return to its original shape called?
A) Elasticity
B) Plasticity
C) Toughness
D) Resilience
, Answer: A
Elasticity is the property that allows a material to return to its original shape after the removal of a
deforming force.
6. Which property describes the ability to withstand tearing or shearing forces?
A) Tensile strength
B) Toughness
C) Hardness
D) Compression strength
Answer: B
Toughness is the ability of a material to resist tearing or shearing, indicating its capacity to absorb
energy before failure.
7. What is the actual weight of material per cubic inch called?
A) Mass
B) Weight
C) Density
D) Specific gravity
Answer: C
Density is defined as the actual weight of a material per cubic inch, a critical property in aerospace
applications.
8. Which property refers to the ability to become a liquid when heated?
A) Conductivity
B) Fusibility
C) Fluidity
D) Viscosity
Answer: B
Fusibility is the ability of a material to become liquid when heated, essential for casting and welding
operations.
