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Question 1
Which type of main rotor hub assembly allows individual rotor blades to flap, lead-lag (drag), and feather independently via mechanical hinges?
Correct Answer:
Fully articulated rotor system
Question 2
In a fully articulated main rotor head, what mechanical component is installed on the lead-lag hinge to prevent destructive blade hunting and ground resonance?
Correct Answer:
Hydraulically damped drag damper
Question 3
Why are semi-rigid teetering rotor hubs mounted in an 'underslung' geometry relative to the teetering hinge pin?
Correct Answer:
To minimize shifts in the blade center of gravity relative to the mast center of rotation during flapping, reducing Coriolis accelerations
Question 4
A helicopter equipped with a semi-rigid teetering rotor system experiences a low-G pushover maneuver. What critical structural phenomenon is likely to occur if cyclic control is applied abruptly?
Correct Answer:
Mast bumping due to severe flapping angle exceeding teetering hinge stops
Question 5
How do modern rigid (hingeless) rotor systems accommodate blade flapping and lead-lag stresses without mechanical hinge pins?
Correct Answer:
Through flexible composite structural elements at the blade root that flex under aerodynamic loads
Question 1
Exam overview

About this Exam

Prepare with the SACAA CPL(H) Aircraft Technical & General Practice Questions - SACAA Commercial Pilot Licence (Helicopter) Aircraft Technical & General Knowledge Examination Exam practice quiz. This question bank includes 100 questions covering rotor, engine, main, helicopter, and turboshaft. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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SACAA CPL(H) Aircraft Technical & General Practice Questions - SACAA Commercial Pilot Licence (Helicopter) Aircraft Technical & General Knowledge Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on rotor, engine, main, helicopter, and turboshaft. 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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