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判断题
兴波长度是船首横波的第一个波谷和船尾横波的第一个波峰之间的距离。
A
对
B
错
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单选题Some large A-Cmotors are equipped with heatersThese could be （） (1)resistance heaters bolted directly to the frame (2)low voltage windings embedded in the motor windingsA
(1) onlyB
(2) onlyC
either (1) or (2)D
neither (1) or (2)
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Farther away to the westB
Farther away to the eastC
In the same placeD
Closer and to the west
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improvesB
installsC
containsD
requests
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锚链角最小，风舷角最大B
锚链角最小，风舷角最小C
锚链角最大，风舷角最小D
锚链角最大，风舷角最大
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单选题已知某轮平均吃水为9.72m，漂心距船中距离为-0.53m，两柱间长为139.2m，吃水差为-1.59m，则该轮的首吃水为（）m。A
9.82B
10.71C
8.92D
11.60
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单选题If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.A
Only a radar expert can determine if the radar is operatingB
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A radar range compared to the actual range of a known object can be used to check the operation of the radarD
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检查、签证/检查、检查B
检查、签证/签证、检查C
检查、检查/签证、检查D
检查、检查/检查、检查
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滤器清洗频度
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