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The permanent magnetism of a vessel may change in strength due to ______.
A.the nature of the cargo being carried
B.changes in heading
C.major structural repair
D.All of the above
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更多 “ 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 ” 相关考题
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The best method of determining if a vessel is dragging anchor is to note ______.A.the amount of line paid outB.how much the vessel sheers while at anchorC.any change in the tautness of the anchor chainD.changes in bearings of fixed objects onshore
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A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.A.the masthead lights for a towing vesselB.the lights for a vessel restricted in its ability to maneuverC.sidelights，stern light and towing lightD.All of the above
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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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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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When a vessel changes course from one cardinal heading to another cardinal heading while adjusting the compass，which action should be taken ________．A.The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headingsB.After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustmentC.During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearingD.After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
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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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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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A vessel that is defined as restricted in her ability to manoeuver is unable to keep out of the way of another vessel due to ______.A.her draftB.the nature of her workC.some exceptional circumstancesD.a danger of navigation
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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Your vessel was damaged and initially assumed a significant list and trim; however，further increase has been slow. Based on this data，what should you expect?（）A
The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane areaB
The vessel can probably be saved if further flooding can be stoppedC
The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effectD
The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize
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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Water may boil up around the stern of a vessel in a channel due to（）.A
slack water when upboundB
shallow waterC
a cross currentD
a head current
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单选题When using an ARPA，what should you consider in order to evaluate the information displayed?（）A
The target vessel's generated course and speed are based solely on radar inputsB
Navigational constraints may require a target vessel to change courseC
The trial maneuver feature will automatically determine a course that will clear all targetsD
You cannot determine if a small target has been lost due to sea return
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
考题
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 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
考题
单选题When shall the stand-on vessel change course and speed?（）A
the stand-on vessel may change course and speed at any time as it has the right of wayB
after the give-way vessel sounds one blast in a crossing situationC
when action by the give-way vessel alone cannot prevent collisionD
when the two vessels become less than half a mile apart
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Due to the nature of a vessel’s construction for a particular trade，it does not fully comply with the provisions of SOLAS. Where will this be indicated?（）.A
On the Exemption CertificateB
On the reverse of the particular SOLAS certificate affectedC
On the face of the Certificate of InspectionD
Nowhere； the vessel must engage in international trade
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
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Due to the nature of a vessel’s construction for a particular trade，it does not fully comply with the provisions of SOLAS. Where will this be indicated? （）A
On the Exemption CertificateB
On the reverse of the particular SOLAS certificate affectedC
On the face of the Certificate of InspectionD
Nowhere; the vessel must comply to engage in international trade
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
考题
单选题Magnets are placed in horizontal trays in the compass binnacle to compensate for the（）.A
induced magnetism in the vessel's horizontal soft ironB
change in the magnetic field when the vessel inclines from verticalC
permanent magnetism of the vesselD
magnetic fields caused by electrical currents in the vicinity
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