网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
When crossing the magnetic equator the ______．
A.Flinders bar should be inverted
B.Heeling magnet should be inverted
C.The quadrantal spheres should be rotated 180°
D.Flinders bar should be moved to the opposite side of the binnacle
参考答案
更多 “ When crossing the magnetic equator the ______．A.Flinders bar should be invertedB.Heeling magnet should be invertedC.The quadrantal spheres should be rotated 180°D.Flinders bar should be moved to the opposite side of the binnacle ” 相关考题
考题
Spring tides occur______．A.when the moon is new or fullB.when the moon and sun have declination of the same nameC.only when the moon and sun are on the same sides of the earthD.at the beginning of spring when the sun is over the equator
考题
When crossing the street, try to use the zebra crossing! don’t ________。
A.purrB.honk the hornC.shuffleD.jaywalk
考题
Conditions for crossing a rough bar are usually best at ______.A.low water slackB.high water slackC.high water ebbD.high water flood
考题
When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results ______.A.in the vessel's Official LogbookB.on the compass deviation cardC.in the compass deviation logD.on a Napier diagram
考题
Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________．A.Stack weights should be less when using a solid bar lashing as compared to a wire lashingB.Stack heights may be increased when using a solid bar lashingC.Stack heights should be reduced when using a solid bar lashingD.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）
考题
When relieving the helm，the new helmsman should know the ______．A.Course per magnetic steering compassB.Gyro errorC.VariationD.Maximum rudder angle previously used
考题
You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made ________．A.Flinders bar first，then the heeling magnet and spheresB.Heeling magnet first，then the Flinders bar and spheresC.Flinders bar first，then the spheres and heeling magnetD.Spheres first，then the Flinders bar and heeling magnet
考题
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
考题
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
考题
单选题The magnetic compass magnets are acted on by the horizontal component of the Earth’s total magnetic force. This magnetic force is GREATEST at the（）.A
north magnetic poleB
south magnetic poleC
magnetic prime vertical meridianD
magnetic equator
考题
单选题Which statement about the Flinders bar of the magnetic compass is CORRECT（）.A
It compensates for the error caused by the vertical component of the Earth's magnetic fieldB
It compensates for error caused by the heeling of a vesselC
It compensates for quadrantal deviationD
It is only needed in equatorial waters
考题
单选题Spring tides occur（）.A
when the moon is new or fullB
when the moon and sun have declination of the same nameC
only when the moon and sun are on the same sides of the earthD
at the beginning of spring when the sun is over the equator
考题
单选题Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.A
always be nearer to the equatorB
always be nearer to the elevated poleC
be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern HemisphereD
be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
考题
单选题The greatest directive force is exerted on the magnetic compass when the（）.A
needles are nearly in line with the meridianB
vessel is near the magnetic polesC
variation is near zeroD
vessel is near the magnetic equator
考题
单选题What is TRUE when operating in fog and other vessels are detected by radar?（）A
you should make an ample change to port for a vessel crossing on the starboard bowB
You should maneuver in ample time if a close-quarters situation is developingC
You should determine the course and speed of all radar contacts at six minutes intervalsD
Long-range scanning will provide early warning of all other vessels within the radar’s range
考题
单选题Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）A
Stack weights should be less when using a solid bar lashing as compared to a wire lashingB
Stack heights may be increased when using a solid bar lashingC
Stack heights should be reduced when using a solid bar lashingD
Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)
考题
单选题According to the passage, _____.A
we should not worry about the transition of the Earth’s magnetic fieldB
the Earth’s magnetic field will not change for at least 2000 yearsC
the Earth’s magnetic field has decreased its strength rapidlyD
the transition of the Earth’s magnetic field can be controlled by modern science
考题
单选题When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.A
eddies under the barB
swift current under the bar causing loss of controlC
cross-currents pushing the tow away from the barD
cross-currents pushing the tow into the bar
考题
单选题You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.A
Flinders bar first，then the heeling magnet and spheresB
Heeling magnet first，then the Flinders bar and spheresC
Flinders bar first，then the spheres and heeling magnetD
Spheres first，then the Flinders bar and heeling magnet
考题
单选题When crossing the magnetic equator the（）.A
Flinders bar should be invertedB
Heeling magnet should be invertedC
The quadrantal spheres should be rotated 180°D
Flinders bar should be moved to the opposite side of the binnacle
考题
单选题When using the radar for navigating（）.A
the best fix is obtained by using a tangent bearing and a rangeB
and using two radar ranges for a fix，the objects of the ranges should be close to reciprocal bearingsC
and using ranges，the most rapidly changing range should be measured lastD
and crossing a radar range of one object with the visual bearing of a second object，the two objects should be 80°to 110°apart
考题
单选题When a magnetic compass is not in use for a prolonged period of time it should（）.A
be shielded from direct sunlightB
be locked into a constant headingC
have any air bubbles replaced with nitrogenD
have the compensating magnets removed
考题
单选题Conditions for crossing a rough bar are usually best at （）.A
low water slackB
high water slackC
high water ebbD
high water flood
考题
单选题When relieving the helm，the new helmsman should know the（）.A
Course per magnetic steering compassB
Gyro errorC
VariationD
Maximum rudder angle previously used
考题
单选题When adjusting a magnetic compass for error，a deviation table should be made（）.A
before correcting for any deviationB
after correcting for variationC
after adjusting the fore-and-aft and athwartships permanent magnetsD
before the quadrantal correctors are placed on the compass
考题
单选题At the magnetic equator there is no induced magnetism in the vertical soft iron because（）.A
the lines of force cross the equator on a 0°-180°alignmentB
the quadrantal error is 0°C
there is no vertical component of the Earth's magnetic fieldD
the intercardinal headings have less than 1°
热门标签
最新试卷
