Coloque (F) falso ou (V) verdadeiro nas afirmativas abaixo, ...
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Com base no mesmo assunto
Ano: 2006
Banca:
Marinha
Órgão:
DPC - Marinha
Prova:
Marinha - 2006 - DPC - Marinha - Praticante de Prático |
Q2196943
Engenharia Naval
Coloque (F) falso ou (V) verdadeiro nas afirmativas abaixo, em relação a propulsores e sistemas de governo
empregados em rebocadores, de acordo com o livro “Tug Use in Port”, recomendado pela Circular da IMO Msc 1101:
( ) Single screw tugs are usually best to some alongside for assistance of a submarine.
( ) An open fixed pitch propeller develops more thrust astern than an open controllable pitch propeller when fitted in a conventional tug going full astern.
( ) The nozzle type “backing nozzle”, has been developed to give better efficiency for a tug going astern, which results in a little less efficiency going ahead.
( ) Nozzles increase the efficiency of the propeller and increase the steering capabilities of a tug.
( ) The performance of a becker rudder when the tug has speed astern is better as that of an unflapped rudder.
( ) Single screw tugs are usually best to some alongside for assistance of a submarine.
( ) An open fixed pitch propeller develops more thrust astern than an open controllable pitch propeller when fitted in a conventional tug going full astern.
( ) The nozzle type “backing nozzle”, has been developed to give better efficiency for a tug going astern, which results in a little less efficiency going ahead.
( ) Nozzles increase the efficiency of the propeller and increase the steering capabilities of a tug.
( ) The performance of a becker rudder when the tug has speed astern is better as that of an unflapped rudder.
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