A. rolling period B. amplitude moment C. inclining moment D. pitching period
A. pumped overboard to calm the seas B. drained to the lower hull to reduce free surfaces C. filled to ensure that sufficient fuel oil is available during a lengthy emergency D. partially drained to increase free surfaces in order to reduce motio
A lightly laden vessel requires as much stopping distance as a fully laden vessel when the current is from astern B. A vessel is dead in the water when the back wash from astern operation reaches the bow C. A tunnel bow thruster can be used in an emergency to reduce the stopping distance D. When a vessel is dead in the water any speed displayed by doppler log reflects the current
A. It automatically maintains tow line tension B. It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken in C. As tension on the hawser increases，more line is taken in by the automatic towing engine D. As tension on the hawser decreases，more line is taken in by the automatic towing engine
A. yawing B. moving C. turning D. pitching
A. carrying extra rudder to compensate for the current B. necessary to adjust the course steered to allow for the current C. at anchor and stemming the current D. being forced off of a pier by the hydraulic effect of the current
A vessel trawling B. A vessel trolling C. A vessel setting nets D. A vessel tending line
A. bow to the wind B. beam to the wind C. stern to the wind D. with the wind on the quarter
A. vessel trolling B. mineclearing vessel C. trawler D. vessel engaged in replenishment at sea
A. gear extending from the side or stern B. gear that restricts maneuverability C. less than 50 percent trolling lines D. None of the above
微信支付 
支付宝支付