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TECNOLOGIA AEROESPACIAL I TRANSPORT AERI (Curs Total)

TECNOLOGIA AEROESPACIAL I TRANSPORT AERI (Curs Total)

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Appart from stability, having the centre of gravity ahead of the neutral point is also good for stall recovery.

True

False

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Which parameters control the effectiveness of the horizontal stabiliser?

The area and the lever arm.

The lever arm, but not the area

The area, but not the lever arm

Neither the lever arm, nor the area

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Static stability implies dynamic stability.

True

False

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Equilibrium (balance) is the same as stability.

What is false about the dutch roll?

Large vertical stabilisers damp this mode

It is extremely dangerous if not corrected

100%

It is a short period mode

If not actively damped, it is more notorious in large aircraft than in small aircraft.

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What is true about the horizontal stabiliser's trim tab?

It produces the lift to fly the airplane

It helps pilot the airplane

It helps balance the airplane in longitudinal flight without holding the elevator

It stabilises the airplane

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When the centre of gravity is behind the neutral point...

The airplane is longitudinally neutrally stable.

The airplane is not controlable.

The airplane is longitudinally stable.

The airplane is longitudinally unstable.

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Why would one tend to design unstable airplanes that are electronically stabilised?

For cheaper design costs.

None of the others

For marketing purposes

For better manoeuvrability.

100%

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What is false about the phugoid motion?

it corresponds to an alternating exchange between potential and kinetic energy.

It is always stable

It is a long period mode

All of the options are true

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The vertical stabiliser helps restore alignment of the airplane with oncoming air at all times.

True

False

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