海船船员考试
单选题The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is（）.A deviationB variationC compass errorD dip
题目
deviation
variation
compass error
dip
相似问题和答案
第1题：
The height of eye correction is smaller than geometrical dip because of ______.
A.the angle between the horizontal and the line of sight to the visible horizon
B.index error
C.parallax
D.terrestrial refraction
第2题：
Permanent magnetism is caused by ______.
A.operation of electrical equipment and generators on board ship
B.the earth's magnetic field affecting the ship's hard iron during construction
C.the horizontal component of the earth's magnetic field acting on the horizontal soft iron
D.the vertical component of the earth's magnetic field acting on the vertical soft iron
第3题：
On a crane, the boom indicator tells the operator what angle the boom angle is compared to the ______.
A.vertical position
B.horizontal position
C.boom stop angle
D.minimum radius angle
在船上，吊杆指示器指示一个吊杆与什么比较的角度？水平线位置
第4题：
______is an angle at which a cargo settles in the hold of a ship，between the horizontal and the slope made by a bulk cargo such as grain or iron ore．
A.Angle of loll
B.Angle of inclination
C.Angle of repose
D.Angle of list
静止角是在货物进入货舱时，水平面与倾斜面的夹角，散货船上比如散谷和铁矿石。
第5题：
With a given load on the cargo hook，the thrust on a cargo boom ______.
A.increases as the angle to the horizontal increases
B.increases as the angle to the horizontal decreases
C.is greatest at an angle of 45° and decreases as the boom is raised or lowered
D.is least at an angle of 45° and increases as the boom is raised or lowered
第6题：
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to ______.
A.the meridian through the object of the bearing
B.the meridian through the ship's position
C.the meridian midway between the ship and the object
D.any meridian
第7题：
With a given load on the cargo hook，tension in a single span topping lift ______.
A.increases as the boom's angle to the horizontal increases
B.is at a maximum when the boom is at a 45° angle to the horizontal
C.increases as the boom's angle to the horizontal decreases
D.decreases as the boom's angle to the horizontal decreases
第8题：
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the ______.
A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
第9题：
In the navigational triangle，the angle at the elevated pole is the ______．
A.meridian angle
B.altitude
C.right ascension
D.azimuth angle
第10题：
Deviation is the angle between the ______.
A.true meridian and the axis of the compass card
B.true meridian and the magnetic meridian
C.magnetic meridian and the axis of the compass card
D.axis of the compass card and the degaussing meridian
自差是磁子午线与罗经盘的轴之间的角。