Assessment: Bank Effect

1 Maggio 2022

|By Maurizio Garipoli

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Domanda 1 of 9

1. Domanda

What is the difference between channel and canal?

The channels are influenced by the wind, while the current influences the canals.
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The former are artificial made, the latter natural.
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The former are natural waterways (channels). The latter are artificial (canals).
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2. Domanda

Do we have the same effects in artificial canals and natural channels?

No, the artificial and regular banks create constant and higher forces than the natural channels.
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No, in natural channels the forces generated dissipate faster.
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No, seemingly similar areas in natural channels can hide banks with very different effects.
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3. Domanda

Why does a bank suck a ship?

Because of the Venturi effect.
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For the tidal current that flows faster along the banks.
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Because of the squat effect.
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4. Domanda

Is the ship’s approach to the bank/side always parallel?

Yes, the Venturi effect accelerates the fluid threads by creating a depression on the entire hull.
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No, when the ship approaches, it experiences the cushion effect at the bow and suction at the stern.
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No, when the ship approaches, it experiences the suction effect at the bow and the cushion at the stern.
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5. Domanda

What is the minimum safety distance from the bank?

A distance greater than the breadth of the ship itself.
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½ of the ship's breadth.
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⅓ of the ship's breadth.
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6. Domanda

What can happen if the ship gets too close to a bank?

The ship could be pushed forward and pulled astern so hard that it can sheer violently.
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The side effects may be so strong that the use of the rudder is insufficient to counter them.
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If the speed is low while suffering from the effects, the ship may use helm and kicks to regain control.
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7. Domanda

How do you deal with the bend of a canal?

At constant speed.
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Once you enter the bend, slow down the engine and the use tide current.
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As with a car, you enter at low speed and accelerate when exiting.
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At the lowest possible speed.
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8. Domanda

Why is central positioning in channels important?

Because it is possible to take advantage of the side effects to corner the bend
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Because the ship always remains under helm control
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9. Domanda

An incomplete canal curve, but with a transverse waterway, what does it entail?

The current coming from the waterway can push the ship towards the inside of the bend.
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The effect of any current will vary its strength on the hull as the ship moves through the channel.
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The bank effects on the side of the waterway stops.
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Assessment: Bank Effect

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