Ground resonance occurring when rotor RPM is within operating limits can be alleviated by:

Helicopter Operations Quiz

Quiz
•
English
•
University
•
Hard
Ha Trang Dao
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
compensating for helicopter movement with cyclic control.
avoiding any control input until all vibration has ceased.
applying collective Pitch and Lifting Off.
applying the rotor brake as rapidly as possible.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a helicopter with manual throttle, if the main rotor is overpitched, the corrective action is to:
reduce engine power and leave collective pitch constant.
reduce both engine power and collective pitch.
increase engine power and collective pitch.
reduce Collective pitch and Increase Engine power.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When overpitching in a helicopter, a possible consequence will be:
a more effective main rotor.
a lower coning angles.
an increase in rate of climb.
a higher Coning Angles.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A helicopter in forward flight suffers a tail rotor failure. The correct action is:
Reduce Collective.
pitch nose forward using cyclic.
close throttle.
apply lateral cyclic.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the engine fails in the hover, at 3 ft skid height in still air, in a single engine helicopter, the recommended action is:
counteract yaw with Pedals, maintain Position with cyclic, Cushion touchdown with Collective.
use left rudder to prevent yaw, push cyclic forward for touchdown, lower collective to cushion landing.
use rudder to prevent yaw, hold cyclic steady, lower collective briefly then raise to cushion landing.
counteract yaw with pedals, use cyclic to raise tail rotor, lower collective slightly to maintain rotor rpm.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the best actions to take in order to recover from retreating blade stall?
reduce collective, Reduce airspeed, and Reduce the severity of the Maneuvers.
increase collective, increase airspeed, and increase the severity of the maneuvers.
reduce collective, increase airspeed, and reduce the severity of the maneuvers.
increase collective, reduce airspeed, and reduce the severity of the maneuvers.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What recovery actions should be taken in the event of entry into vortex ring state?
apply lateral cyclic, lower the collective.
apply forward cyclic, raise the collective.
apply forward cyclic, Lower the collective.
apply aft cyclic, raise the collective.
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