Tail Rotor

Question 1

What type tail rotor is used on the Bell 212?
A. Semirigid
B. Fully articulated
C. A semirigid tractor
D. A semirigid tractor with a delta hinge

Answer 1

D. A semirigid tractor with a delta hinge

Question 2

What actions are allowed by the the tail rotor yoke flex-beams?
A. Independent blade pitch change
B. Independent blade flapping
C. Collective blade pitch change
D. Collective blade flapping

Answer 2

B. Independent blade flapping

Question 3

What is the purpose of the tail rotor blade grip plates and doublers?
A. To provide inertia weight for the blades
B. To ensure positive connection without movement between the yoke and the blades
C. To strengthen the blade where it attaches to the yoke
D. To mount the spherical self-lubricating pitch-change bearings

Answer 3

C. To strengthen the blade where it attaches to the yoke

Question 4

How does tail rotor blade pitch change occur?
A. About the spherical pitch-change bearings in the yoke
B. As a result of the delta hinge and the trunnion bearings
C. About the retainer bearings of the crosshead
D. As a result of counterweight movement of the yoke

Answer 4

A. About the spherical pitch-change bearings in the yoke

Question 5

How are the tail rotor and blades balanced?
A. Chordwise
B. Spanwise
C. Electronically tracked 
D. All the above

Answer 5

D. All the above

Chordwise
Spanwise
Electronically tracked

Question 6

What materials are used in the construction of the tail rotor blades?
A. Bonded steel
B. Bonded aluminum alloy and fiberglass
C. Bonded aluminum alloy with a stainless-steel leading-edge spar
D. Molded fiberglass skin and honeycomb

Answer 6

C. Bonded aluminum alloy with a stainless-steel leading-edge spar

Question 7

What is the purpose of the tail rotor crosshead assembly and pitch links?
A. To convert flight control movement to blade pitch change
B. To allow for independent change on each blade
pitch
C. To relieve strain on the rotor hub during hovering
D. To couple tail rotor pitch change with the pilot’s collective

Answer 7

A. To convert flight control movement to blade pitch change

Question 8

What is the purpose of the the counter- weight assemblies?
A. To reduce strain on the pitch-change mechanism
B. To prevent “wandering” in the event of loss of tail rotor control
C. To prevent “fixed pitch’’ tail rotor malfunctions
D. Both A and B

Answer 8

D. Both A and B

To reduce strain on the pitch-change mechanism
To prevent “wandering” in the event of loss of tail rotor control

Question 9

Which of the following tail rotor conditions is more apparent during high density altitude operations?
A. Complete loss of tail rotor thrust
B. Tail rotor fixed pitch
C. Loss of tail rotor effectiveness
D. Loss of tail rotor components

Answer 9

C. Loss of tail rotor effectiveness