甲类航海英语2580题库（附完整翻译）(15)

C．just aft of the bow D．on either side of the stern KEY: A船尾的区域段是船尾两边

[377] A virtual rise in the center of gravity may be caused by ______. A. filling a partially filled tank

B. using an on board crane to lift a freely swinging heavy object C. emptying a partially filled tank

D. transferring ballast from the forepeak to the after peak

KEY: B使用船吊起吊自由摇摆的重物可能导致实际重心高度升高。

[378] A VLCC (100,000 DWT+) with a 30,000 Shaft Horsepower Steam Turbine is slow to respond to engine movements and has less stopping power than normal ships because it has a __

A. bigger propeller B. smaller power weight ratio C. smaller propeller D. larger power weight ratio KEY: B一艘巨型油船(100,000 DWT+) 用30,000马力的汽轮机，反映了功率/排水量比较小。

[379] A V-shaped ripple with the point of the V pointing upstream in a river may indicate a _____

A. submerged rock, not dangerous to navigation B. broken wreck, not dangerous to navigation

C. towed-under buoy D. All of the above

KEY: C尖头向上游的V形小浪，表明其下有碍航物。 [380]A warm air mass is characterized by______． A．stability B．instability C．gusty winds D．good visibility KEY: A暖气团表现为较稳定的特征。

[381] A weather forecast states that the wind will commence backing. In the Northern Hemisphere

this would indicate that it will ______.

A. shift in a clockwise manner B. shift in a counterclockwise manner C. continue blowing from the same direction D. decrease in velocity KEY: B气象预报中叙述的风将开始风向反转。在北半球这表示风向将反时针方向变化 [382] 同上

[383] A weather forecast states that the wind will commence veering. In the Northern Hemisphere

this would indicate that it will ______.

A. shift in a clockwise manner B. shift in a counterclockwise manner C. continue blowing from the same direction D. increase in velocity

KEY: A气象预报中叙述的风将开始风向顺转。在北半球这表示风向将顺时针方向变化。

Veering, 风向顺转（北半球顺时针，南半球反时针）。

[384] A wedge of water building up between the bow and nearer bank which forces the bow out

and away describes ______.

B. bank cushion B. bank suction C. combined effect D. bend effect KEY: A在船艏与近岸之间的水面形成高压迫使船艏离开岸边描述为岸推。 [385] A wet cargo refers to ______.

A. a cargo that will be damaged if it gets wet B. bulk liquids

C. cargoes that will cause condensation D. liquids in containers KEY: D湿货指的是包装的流质货物。

[386] A wind vane on a moving vessel shows ______.

A. dead reckoning wind direction B. true wind direction

C. apparent wind direction D. estimated wind direction KEY: C运动的船上的风向标指示视风的方向。 [387] 同上

[388] A wire rope that has been overstrained will show ______. A. a bulge in the wire where the strain occurred

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B. a decrease in diameter where the strain occurred

C. a kink in the wire where the strain occurred D. no visible effects of an overstrain

KEY: B一个钢丝缆如果承受过大的拉力，直径将减小。 [389] A wobbling tail shaft is an indication of ______.

A. shallow water B. an engine that is misfiring

C. a tight tail shaft gland D. worn stern bearing or misalignment

KEY: D一个摇晃的为轴显示了轴封以损坏。

[390] Aboard a survival craft, ether can be used to ______.

A. start the engine in cold weather B. aid in helping personnel breathe C. prime the sprinkler system D. prime the air supply KEY: A在救生艇上，乙醚能够被用于在寒冷的天气中启动机器。 [391] 同上

[392] Aboard a vessel, dividing the sum of the longitudinal moments by total weight yields the

vessel?s ______.

A. inclining moments B. righting moments

C. vertical moments D. longitudinal position of the center of gravity

KEY: D在船舶上纵向力矩总和/排水量得出的是纵向力臂。（Xg）

[393] Aboard a vessel, dividing the sum of the transverse moments by total weight yields the vessel?s

A. vertical moments B. transverse position of the center of gravity C. inclining moments D. righting moments KEY: B在船舶上横向力矩总和/排水量得出的是横向力臂。（Yg）

[394] Aboard a vessel, dividing the sum of the vertical moments by total weight yields the vessel?s

A. height of the center of gravity B. vertical moments C. righting moments D. inclining moments KEY: A船舶上纵向力矩/排水量得出重心高度。

[395] Aboard a vessel, multiplying a load?s weight by the distance of the load?s center of gravity

from the centerline results in the load?s ______.

A. TCG B. transverse moment

C. righting moment D. transverse free surface moment KEY: B船舶上货物重心到重心线的距离乘以载重量得出横向力矩。

[396] Aboard a vessel, multiplying a load?s weight by the distance of the load?s center of gravity

from the mid-ship section results in the load?s ______.

A. LCG B. longitudinal moment C. righting moment D. inclining moment

KEY: B船舶上货物重心到船中剖面的距离乘以载重量得出纵向力矩。

[397] Aboard damaged vessels, the MOST important consideration is preserving ______. A. bilge pumping capacity B. reserve buoyancy C. level attitude D. Instability

KEY: B在一艘受损的船上，考虑最重要的是保存剩余浮力。

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