单选题This induced magnetism()the permanent magnetism already present in the ship.Awill add toBwill subtract fromCmay add to or subtract fromDwill not change
单选题
This induced magnetism()the permanent magnetism already present in the ship.
A
will add to
B
will subtract from
C
may add to or subtract from
D
will not change
参考解析
解析:
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相关考题:
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A ship under construction or major repair will acquire permanent magnetism due to ______ while sitting stationary in the earth's magnetic field.A.hammering and jarringB.vibration and poundingC.varying magnetic fieldsD.stable or permanent magnetism of the ship
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单选题The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval().AThey are not subject to permanent magnetism; no check is necessaryBSemiannuallyCAnnuallyDEvery five years
单选题The permanent magnetism of a vessel may change in strength due to().Athe nature of the cargo being carriedBchanges in headingCmajor structural repairDAll of the above
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单选题A ship under construction or major repair will acquire permanent magnetism due to()while sitting stationary in the earth’s magnetic field.Ahammering and jarringBvibration and poundingCvarying magnetic fieldsDstable or permanent magnetism of the ship
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