甲类三副(航海英语)模拟试题3
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Most propellers on merchant vessels are constructed of______．
- A.manganese bronze
- B.cast iron
- C.mild steel
- D.improved plow steel
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Most LOG use the doppler shift of the carrier phase to compute______．
- A.Latitude
- B.Longitude
- C.Speed
- D.Time
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Mooring______are placed on both banks of the Suez Canal about 200m apart．
- A.bollards
- B.ballasts
- C.bands
- D.Benefits
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Most pedestal crane power is provided by ______.
- A.Electro-hydraulic units
- B.Steam units
- C.Independent internal combustion power units
- D.All of the above
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Mooring lines should be turned end-for-end occasionally. This is because ______.
- A.a line is weakened by constantly pulling on it in one direction
- B.normal wear on the line is thus distributed to different areas
- C.it prevents the line from kinking or unlaying
- D.it prevents permanent misalignment of the line’s internal strands
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Monsoons are characterized by ______.
- A.light, variable winds with little or no humidity
- B.strong, gusty winds that blow from the same general direction all year
- C.steady winds that reverse direction semiannually
- D.strong, cyclonic winds that change direction to conform to the passage of an extreme low pressure system
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MODERATE WAVES, TAKING A MORE PRONOUNCED LONG FORM;MANY WHITE HORSES ARE FORMED. This sea condition is likely to be termed ______.
- A.near gale
- B.moderate breeze
- C.fresh breeze
- D.strong breeze
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Molded depth is measured from the ______.
- A.inside of the shell
- B.outside of the shell
- C.top of the center vertical keel
- D.top of the garboard stake
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Metacentric height is a measure of ______.
- A.initial stability only
- B.stability through all angles
- C.maximum righting arm
- D.All of the above
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Mean high water is the average height of ______.
- A.the higher high waters
- B.the lower high waters
- C.the lower of the two daily tides
- D.all high waters
GMDSS题库试题(1)
GMDSS题库试题(2)
GMDSS题库试题(3)
GMDSS题库试题(4)
GMDSS题库试题(5)
GMDSS试题练习(1)
GMDSS试题练习(2)
GMDSS试题练习(3)
GMDSS试题练习(4)
GMDSS试题练习(5)