Assembly and Rigging: Quiz #4 Questions and Answers

Assembly and Rigging: Quiz #4 Questions and
Answers
As far as helicopter vibrations go, there are two types. One of the two types of vibration can be
felt as a buzz, the other is felt as a thump or a beat. Match the type of vibration to the "feeling".
Thump or Beat:
Buzz: ✔️✔️Vertical vibration
High frequency vibration


There are two ways of correcting vibration that deals with the rotor blades. What are they?
✔️✔️Blade tracking and Blade balancing


Gyroscopic precession causes the resultant ultimate force to occur how many degrees from the
applied force?
A. 90 degrees in opposite direction of rotation
B. 90 degrees in direction of rotation
C. 180 degrees in opposite direction of rotation
D. 180 degrees in direction of rotation ✔️✔️90 degrees in direction of rotation


In the United States helicopter rotors turn --- and most European helicopter rotors turn ---.
✔️✔️counter-clockwise, clockwise


If a helicopter is hovering (no forward airspeed) is the speed of the rotor blade greater at the
TIP or HUB? ✔️✔️Tip


The earliest technique for rotor tracking was ---. ✔️✔️Flag tracking