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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 jarring
B.vibration and pounding
C.varying magnetic fields
D.stable or permanent magnetism of the ship
参考答案
更多 “ 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 ” 相关考题
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______ is issued under the provision of International Convention for the Prevention of Pollution from Ships，1973，as modified by the Protocol of 1978 relating thereto.A.INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATEB.CARGO SHIP SAFETY CONSTRUCTION CERTIFICATEC.CARGO SHIP SAFETY EQUIPMENT CERTIFICATED.CARGO SHIP SAFETY RADIOTELEPHONY CERTIFICATE
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Permanent magnetism is caused by ______.A.operation of electrical equipment and generators on board shipB.the earth's magnetic field affecting the ship's hard iron during constructionC.the horizontal component of the earth's magnetic field acting on the horizontal soft ironD.the vertical component of the earth's magnetic field acting on the vertical soft iron
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Permanent magnetism is found in ______.A.hard ironB.soft ironC.vertical iron onlyD.horizontal iron only
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A claim for cargo damages may be held against the shipowner if such damage is the result of failure of the ship's officers to ______.A.ensure the fitness and safety of cargo spacesB.ensure adequate packaging of the cargoC.prevent delays due to quarantine restrictionsD.correct all defects in the ship's construction
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The permanent magnetism of a vessel may change in strength due to ______.A.the nature of the cargo being carriedB.changes in headingC.major structural repairD.All of the above
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What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude ________．A.Flinders barB.Soft iron spheresC.Fore-and-aft permanent magnets in their traysD.Heeling magnet
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The magnetism in the various structures of a ship changing as a result of cruising，vibration，or aging is termed ______．A.permanent magnetismB.subpermanent magnetismC.induced magnetismD.variable magnetism
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The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval ________．A.They are not subject to permanent magnetism; no check is necessaryB.SemiannuallyC.AnnuallyD.Every five years
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If a ship is proceeding towards the magnetic equator, the uncorrected deviation due to permanent magnetism ______.A.increasesB.remains the sameC.decreasesD.is unimportant and may be neglected
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Magnetism which is present only when the material is under the influence of an external field is called ______.A.permanent magnetismB.induced magnetismC.residual magnetismD.terrestrial magnetism
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单选题If a ship is proceeding towards the magnetic equator，the uncorrected deviation due to permanent magnetism（）.A
increasesB
remains the sameC
decreasesD
is unimportant and may be neglected
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单选题What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.A
Flinders barB
Soft iron spheresC
Fore-and-aft permanent magnets in their traysD
Heeling magnet
考题
单选题This induced magnetism（）the permanent magnetism already present in the ship.A
will add toB
will subtract fromC
may add to or subtract fromD
will not change
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单选题The permanent magnetism of a vessel may change in polarity due to（）.A
being moored for a long time on one headingB
being struck by lightingC
steaming from the north magnetic hemisphere to the south magnetic hemisphereD
loading a homogenous magnetic cargo such as steel plate，iron bars，etc
考题
单选题The magnetism in the various structures of a ship changing as a result of cruising，vibration，or aging is termed（）.A
permanent magnetismB
subpermanent magnetismC
induced magnetismD
variable magnetism
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单选题The permanent magnetism of a vessel may change in strength due to（）.A
a collision with another vesselB
being moored on a constant heading for a long period of timeC
being struck by lightningD
All of the above
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单选题（）is issued under the provision of International Convention for the Prevention of Pollution from Ships，1973，as modified by the Protocol of 1978 relating thereto.A
INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATEB
CARGO SHIP SAFETY CONSTRUCTION CERTIFICATEC
CARGO SHIP SAFETY EQUIPMENT CERTIFICATED
CARGO SHIP SAFETY RADIOTELEPHONY CERTIFICATE
考题
单选题The Flinders bar on a magnetic compass compensates for the（）.A
induced magnetism in vertical soft ironB
induced magnetism in horizontal soft ironC
permanent magnetism in ship's steelD
vessel's inclination from the vertical
考题
单选题The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval（）.A
They are not subject to permanent magnetism; no check is necessaryB
SemiannuallyC
AnnuallyD
Every five years
考题
单选题The permanent magnetism of a vessel may change in strength due to（）.A
the nature of the cargo being carriedB
changes in headingC
major structural repairD
All of the above
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单选题Permanent magnetism is caused by（）.A
operation of electrical equipment and generators on board shipB
the earth's magnetic field affecting the ship's hard iron during constructionC
the horizontal component of the earth's magnetic field acting on the horizontal soft ironD
the vertical component of the earth's magnetic field acting on the vertical soft iron
考题
单选题Permanent magnetism is found in（）.A
hard ironB
soft ironC
vertical iron onlyD
horizontal iron only
考题
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.A
hammering and jarringB
vibration and poundingC
varying magnetic fieldsD
stable or permanent magnetism of the ship
考题
单选题A claim for cargo damages may be held against the shipowner if such damage is the result of failure of the ship’s officers to（）.A
ensure the fitness and safety of cargo spacesB
ensure adequate packaging of the cargoC
prevent delays due to quarantine restrictionsD
correct all defects in the ship's construction
考题
单选题A single vertical magnet placed underneath the compass in the binnacle is used to compensate for（）.A
the horizontal component of the permanent magnetismB
deviation caused by the vessel's inclination from the verticalC
induced magnetism in the horizontal soft ironD
induced magnetism in the vertical soft iron
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单选题A simplified construction plan may be included in the ship construction portfolio provided it adequately defines the（）.A
areas where special materials are usedB
hazardous areasC
location of emergency repair equipmentD
type and strength of materials used
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单选题In ship construction，frame spacing is（）.A
greater at the bow and sternB
reduced at the bow and sternC
uniform over the length of the vesselD
uniform over the length of the vessel，with the exception of the machinery spaces，where it is reduced due to increased stresses
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