the departure
the polar arc
longitude
Greenwich hour angle
第1题：
What will be the phase angle relationship of a six-pole, three-phase, rotating field generator?
A.60
B.120
C.180
D.360
第2题：
When navigating in high latitudes and using a chart based on a Lambert conformal projection，______.
A.a straight line drawn on the chart approximates a great circle
B.the chart should not be used outside of the standard parallels
C.the course angle is measured at the mid-longitude of the track line
D.distance cannot be measured directly from the chart
第3题：
A spring line leads ______.
A.fore and aft from the ship’s side
B.to the dock at a right angle to the vessel
C.through the bull nose or chock at the bow
D.through the chock at the stern
第4题：
In small angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the ______.
A.center of gravity
B.center of flotation
C.metacenter
D.metacentric height
第5题：
The dangerous semicircle of a typhoon in the Southern Hemisphere is that area ______.
A.measured from due south clockwise 180°
B.measured from due south counterclockwise 180°
C.to the left of the storm's track
D.ahead of the typhoon measured from the storm's track to 90°on each side
第6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7题：
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm ______.
A.to the right of the storm's track
B.measured from true north clockwise to 180°T
C.measured from true north counterclockwise to 180°T
D.between the ship's heading and the bearing to the eye
第8题：
When it is winter in China, ______.
A. the USA is tilted toward the sun B. the South Pole is tilted away from the sun
C. the North Pole is tilted toward the sun D. the North Pole is tilted away from the sun
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：
Magnetic dip is a measurement of the angle between the ______.
A.geographic pole and the magnetic pole
B.lubber’s line and true north
C.horizontal and the magnetic line of force
D.compass heading and the magnetic heading