Main Rotor

Question 1

What type of main rotor system is used on the Bell 212?
A. Semi-rigid, teetering
B. Semi-rigid, flex-beam
C. Rigid, soft-in-plane, flex-beam
D. Rigid, soft-in-plane, teetering

Answer 1

A. Semi-rigid, teetering

Question 2

What component of the rotor system provides for blade-pitch change?
A. Blade grips
B. Retention straps
C. Flex-beam yokes
D. Teetering hub

Answer 2

A. Blade grips

Question 3

What component of the rotor system provides for blade flapping?
A. Blade grips
B. Yoke
C. Trunnion
D. Pitch horns

Answer 3

C. Trunnion

Question 4

Which best describes the main rotor blades?
A. Symmetrical airfoils of metal construction
B. Symmetrical airfoils of composite material construction
C. Asymmetrical airfoils of composite material construction
D. Asymmetrical airfoils of metal construction

Answer 4

A. Symmetrical airfoils of metal construction

Question 5

What are the main rotor rpm limits for powered flight?
A. 80 to 104.5%
B. 91 to 104.5%
C. 97 to 104.5%
D. 97 to 100%

Answer 5

D. 97 to 100%

Question 6

What system(s) provides a warning of low rotor rpm?
A. RPM caution lights only
B. Audio tone only
C. RPM lights and audio tone
D. No warning is provided.

Answer 6

C. RPM lights and audio tone

Question 7

What system(s) provides a warning of high rotor rpm?
A. RPM caution lights only
B. Audio tone only
C. RPM lights and audio tone
D. No warning is provided.

Answer 7

A. RPM caution lights only