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Question 1
What is the primary structural function of the crankcase in an opposed aircraft piston engine?
Correct Answer:
To provide a rigid enclosure that supports the crankshaft bearings, cylinders, and accessory drives
Question 2
Which material is most commonly used in the construction of modern horizontally-opposed aircraft engine crankcases?
Correct Answer:
Cast or forged aluminium alloy
Question 3
Why are studs preferred over cap screws for securing cylinder bases to an aluminium engine crankcase?
Correct Answer:
Studs eliminate frequent thread wear in the soft aluminium crankcase during cylinder removal
Question 4
What component supports the crankshaft journals within the crankcase and allows smooth rotation under high loads?
Correct Answer:
Precision insert plain bearings (split-sleeve type)
Question 5
What surface hardening treatment is typically applied to aircraft crankshaft crankpins and journals to resist wear?
Correct Answer:
Nitriding
Question 1
Exam overview

About this Exam

Prepare with the CAA NZ AME Piston Engines Practice Questions - CAA NZ AME Licence Exam - Piston Engines (Subject 5, New Zealand) Exam practice quiz. This question bank includes 100 questions covering engine, cylinder, aircraft, piston, and compression. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Additional Information

CAA NZ AME Piston Engines Practice Questions - CAA NZ AME Licence Exam - Piston Engines (Subject 5, New Zealand) Exam

This practice set contains 100 questions from the matching question bank and focuses on engine, cylinder, aircraft, piston, and compression. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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