默认题库 - 航海出版物

单选题

A rapid rise or fall of the barometer indicates（）.

A. heavy rain within six hours
B. a decrease in wind velocity
C. a change in the present weather conditions
D. that fog will soon set i

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单选题

A position obtained by applying ONLY your vessel’s course and speed to a known position is a （）.

A. fix
B. dead-reckoning position
C. running fix
D. probable positio

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单选题

A radar range to a small，charted object such as a light will provide a line of position in which form? （）

A. Straight line
B. Arc
C. Parabola
D. Hyperbola

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单选题

（）is a comprehensive reference in graphical and textual form of all Admiralty Charts and Publications worldwide（link to Admiralty Charts）listed by region.

A. Ocean Passages for the World
B. Symbols and Abbreviations used on Admiralty Charts，Chart 5011
C. IALA Maritime Buoyage System
D. Catalogue of Admiralty Charts and Publicatio

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单选题

A person who sees someone fall overboard should（）.

A. immediately jump in the water to assist the individual
B. go to the bridge for the distress flares
C. run to the radio room to send an emergency message
D. call for help and keep the individual in sight

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单选题

A sweep oar is an oar that is（）.

A. generally shorter than the others and is used to steer with
B. is longer than the others and is used as the stroke oar
C. is raised in the bow of the boat for the steersman to steer by
D. longer than the others used for steering

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单选题

Aboard a survival craft，ether can be used to（）.

A. start the engine in cold weather
B. aid in helping personnel breathe
C. prime the sprinkler system
D. prime the air supply

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单选题

Admiralty EasyTide（）.

A. has little use for ocean-going mariners
B. permits the mariner to select and simultaneously calculate tidal heights for multiple ports for up to seven days
C. includes periods of daylight and nautical twilight，moon phases and a springs and neaps indicator
D. is supplied in the form of a single CD which contains the calculation program and the seven geographic Area Data Sets（ADS）providing global coverage

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单选题

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 water

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单选题

The information on（）is not likely found in The Mariners Handbook.

A. IALA Buoyage system
B. hydrography，topography，navigational aids and their services
C. basic meteorology and navigation in ice and hazards and restrictions to navigation
D. information on tides，currents and characteristics of the sea

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