When a tug is slowly overtaking a bulk carrier and approach ...

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Q2196779

Ano: 2008 Banca: Marinha Órgão: DPC - Marinha Prova: Marinha - 2008 - DPC - Marinha - Praticante de Prático |

Q2196779 Engenharia Naval

When a tug is slowly overtaking a bulk carrier and approach the stern from behind, it experience a(n) ________________ of speed due to the ________________. When coming nearly abeam of the stern the tug is ________________ the ship, caused by ________________. Since the tug’s forepart is closer to the ship than the stern, the tug experiences a ________________ turning moment. As soon as the tug moves further forward and parallel with the ship’s hull, it experience a sudden ________________ turning moment caused by ________________.
According to Capt. Henk Hensen, in the book “Tug Use in Port”, which answer best fill in the blanks?

decrease – stern high pressure zone – sucked toward – low pressure field due to the speed of water between tug and ship’s hull – toward – outward – the tug’s bow cushion

decrease – stern high pressure zone – pushed outward – stern high pressure – outward – toward – the wave generated by the ship

increase – relative low water speed – sucked toward – low pressure field due to the speed of water between tug and ship’s hull – outward – toward – relatively high water speed

increase – relative low water speed – pushed outward – the ship wake – toward – outward – the tug’s bow cushion

increase – relative low water speed – sucked toward – low pressure field due to the speed of water between tug and ship’s hull – toward – outward – the tug’s bow cushion

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When a tug is slowly overtaking a bulk carrier and approach ...

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