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100+ Free CAA NZ AME Subject 2: Aircraft Engineering Knowledge Practice Questions

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2026 Statistics

Key Facts: CAA NZ AME Subject 2: Aircraft Engineering Knowledge Exam

100

Practice Questions

OpenExamPrep

50

Exam Questions

CAA NZ / Aspeq

70%

Pass Mark

CAA NZ

90 min

Time Limit

Aspeq

The CAA NZ AME Subject 2 exam tests essential aircraft materials, hardware, workshop practices, sheet metal calculations, NDT, and corrosion control. It features 50 CBT questions, a 90-minute time limit, and a 70% pass mark.

Sample CAA NZ AME Subject 2: Aircraft Engineering Knowledge Practice Questions

Try these sample questions to test your CAA NZ AME Subject 2: Aircraft Engineering Knowledge exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the major alloying element in 2024 aluminum alloy, which is widely used in aircraft structural skins and frames?
A.Zinc
B.Copper
C.Magnesium
D.Silicon
Explanation: In the 4-digit aluminum alloy designation system, the 2xxx series indicates that copper is the principal alloying element. 2024-T3 is a high-strength copper-bearing aluminum alloy commonly used in structural applications where high yield strength and fatigue resistance are required.
2Which principal alloying element gives 7075 aluminum alloy its exceptionally high tensile strength?
A.Copper
B.Zinc
C.Manganese
D.Lithium
Explanation: The 7xxx series aluminum alloys use zinc as their primary alloying element, often combined with smaller amounts of magnesium and copper. 7075-T6 provides one of the highest strength-to-weight ratios among aircraft structural aluminum alloys.
3What is the primary function of the pure aluminum cladding applied to Alclad 2024-T3 sheet metal?
A.To increase the electrical resistance of the sheet
B.To improve surface hardness against abrasion
C.To provide galvanic and surface corrosion protection to the core alloy
D.To lower the overall melting temperature during welding
Explanation: Alclad sheet consists of a high-strength aluminum alloy core (such as 2024) covered on both sides with thin layers of commercially pure aluminum (99% pure). Pure aluminum is much more corrosion-resistant than the core alloy and acts as a protective barrier as well as a sacrificial anode.
4What does the temper designation 'O' indicate when applied to an aircraft aluminum alloy (e.g., 2024-O)?
A.Solution heat-treated and naturally aged
B.Thermally strain-hardened
C.Annealed into its softest, most workable state
D.Artificially aged to maximum hardness
Explanation: The letter 'O' designates an aluminum alloy that has undergone annealing, placing it in its softest, lowest-strength, and most ductile state, which allows severe forming or bending operations before subsequent heat treatment.
5What are the main alloying elements combined with titanium in the structural alloy Ti-6Al-4V?
A.6% Aluminum and 4% Vanadium
B.6% Alpha-phase and 4% Vanadium
C.6% Silver and 4% Vanadium
D.6% Zinc and 4% Chromium
Explanation: Ti-6Al-4V is an alpha-beta titanium alloy containing nominally 6% aluminum (which stabilizes the alpha phase) and 4% vanadium (which stabilizes the beta phase). It offers an excellent combination of strength, toughness, and corrosion resistance.
6What type of steel is aircraft 4130 steel, commonly used in engine mounts and tubular fuselage frames?
A.Austenitic Stainless Steel
B.Chromium-Molybdenum Alloy Steel
C.High-Carbon Tool Steel
D.Nickel-Chromium Inconel Superalloy
Explanation: 4130 steel (often called chromoly) is an alloy steel containing approximately 0.8-1.1% chromium and 0.15-0.25% molybdenum. It possesses high strength, excellent weldability, and good fatigue resistance.
7In a composite structural material such as carbon fiber reinforced plastic (CFRP), what is the primary role of the resin matrix?
A.To carry all tensile loads along the length of the structure
B.To bind fibers together, transfer shear loads, and protect fibers from environmental damage
C.To increase electrical conductivity across the structure
D.To reduce the overall weight of the reinforcing fibers
Explanation: In structural composites, the reinforcing fibers carry the primary tensile and compressive loads, while the resin matrix binds the fibers in alignment, transfers shear loads between fibers, and protects them from impact, moisture, and chemical attack.
8Which characteristic is a major advantage of aramid (Kevlar) fibers in aircraft composite construction?
A.High resistance to moisture absorption
B.Ease of clean cutting and drilling without fraying
C.High impact resistance and damage tolerance
D.High chemical reactivity with epoxy resins
Explanation: Aramid (Kevlar) fibers exhibit high tensile strength, exceptional toughness, and high impact resistance, making them ideal for radomes, cargo liners, and fairings. However, they tend to fray when drilled or cut and absorb moisture if left sealed improperly.
9What head marking identifies a standard AN high-strength alloy steel aircraft bolt?
A.Two raised dashes
B.A single raised dash or asterisk
C.A plain head with no markings
D.A raised triangle
Explanation: Standard AN alloy steel aircraft bolts (nickel-chromium-molybdenum steel) are identified by a raised dash (-) or an asterisk (*) stamped on the head. Corrosion-resistant steel bolts have a single dash, while aluminum alloy bolts feature two raised dashes.
10In the standard AN bolt part number AN5-14A, what does the dash number '5' represent?
A.Grip length of 5/8 inch
B.Bolt shank diameter of 5/16 inch
C.Thread pitch of 5 threads per inch
D.Tensile strength class of 50,000 psi
Explanation: In AN bolt part numbers, the number immediately following the 'AN' prefix designates the bolt diameter in sixteenths (1/16) of an inch. Therefore, AN5 represents a diameter of 5/16 inch (0.3125 in).

About the CAA NZ AME Subject 2: Aircraft Engineering Knowledge Exam

The CAA NZ AME Licence Examination for Subject 2 (Aircraft Engineering Knowledge) assesses fundamental aviation maintenance engineering knowledge according to Advisory Circular AC66-2.2. Topics cover aircraft materials (aluminum alloys, titanium, steel, carbon/aramid/glass composites, resin systems), standard aircraft hardware (AN, MS, NAS bolts, nuts, rivets, safety wiring), workshop practices and precision tools (micrometers, verniers, torque wrench calibration, sheet metal layout and bend allowance calculations, non-destructive testing - NDT), and comprehensive aircraft corrosion control (types of corrosion, surface treatments like anodising and alodining, and prevention methods).

Assessment

Closed-book computer-based testing (CBT) delivered at Aspeq examination centers across New Zealand. Candidates have 90 minutes to complete 50 questions.

Time Limit

90 minutes

Passing Score

70%

Exam Fee

$108 NZD (Aspeq sitting fee per subject) (Civil Aviation Authority of New Zealand (exams via Aspeq))

CAA NZ AME Subject 2: Aircraft Engineering Knowledge Exam Content Outline

40%

Aviation Materials & Hardware

Properties and applications of aluminum alloys, titanium, high-strength steels, composites (carbon, aramid, glass, epoxy resins), and standard aircraft hardware (AN/MS/NAS bolts, rivets, safety wire).

35%

Workshop Practices & Tools

Precision measuring instruments, torque wrench extension calculations, sheet metal layout, bend allowance and setback calculations, and non-destructive testing (liquid penetrant, mag particle, eddy current, ultrasonic, radiography).

25%

Corrosion Control & Prevention

Mechanisms of galvanic, intergranular, stress corrosion cracking, and fretting corrosion, chemical surface treatments (alodining, anodising), and corrosion removal/neutralisation procedures.

How to Pass the CAA NZ AME Subject 2: Aircraft Engineering Knowledge Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: Closed-book computer-based testing (CBT) delivered at Aspeq examination centers across New Zealand. Candidates have 90 minutes to complete 50 questions.
  • Time limit: 90 minutes
  • Exam fee: $108 NZD (Aspeq sitting fee per subject)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

CAA NZ AME Subject 2: Aircraft Engineering Knowledge Study Tips from Top Performers

1Master the bend allowance formula: BA = N * (0.01743 * R + 0.0078 * T) and setback calculations for 90-degree sheet metal bends.
2Practice torque wrench adapter math: Tw = (Ts * L) / (L + A) when using extensions or end fittings.
3Memorize 4-digit aluminum alloy coding (e.g., 2024 copper alloy, 7075 zinc alloy) and temper designations (T3, T6, O).
4Understand NDT method selection: Liquid penetrant for surface cracks on non-porous materials, Magnetic particle for surface/subsurface cracks on ferromagnetic materials, and Eddy current for subsurface defects and conductivity.

Frequently Asked Questions

What topics are covered in CAA NZ AME Subject 2?

Subject 2 (Aircraft Engineering Knowledge) covers aircraft materials, standard hardware, precision workshop tools, torque wrench calculations, sheet metal layout and bend allowance, non-destructive testing (NDT), and corrosion identification and prevention.

How is the CAA NZ AME Subject 2 exam administered?

The examination is administered as a computer-based test (CBT) by Aspeq on behalf of CAA New Zealand at designated examination centers.

What is the pass mark and time limit for Subject 2?

Candidates must achieve a minimum score of 70% within the 90-minute examination period.

Are calculators allowed in the exam?

Yes, non-programmable standard scientific calculators are permitted for sheet metal bend allowance and torque extension calculations as specified by Aspeq guidelines.