lower low water
high water
low water
sea level
第1题：
A.chart 1的 additional info
B.chart 1的 event
C.chart 1的 change ms
D.chart 1的Information Elements
第2题：
The heights and soundings of Admiralty chart are expressed ______ in Fathoms ______ in Meters．
A.either，or
B.neither，nor
C.another，nor
D.other，or
第3题：
To determine what causes the majority of quality problems in a process, a very useful tool is the:
A . cause and effect diagrams.
B . flow chart.
C . control chart.
D . pareto chart.
E . trend chart.
第4题：
In what units are heights and soundings in the chart? They are in ______.
A.meters and fathoms
B.fathoms and meters
C.meter and fathom
D.fathom and meter
第5题：
The recording fathometer produces a graphic record of the ______．
A.bottom contour only up to depths of 100 fathoms
B.depth underneath the keel against a time base
C.contour of the bottom against a distance base
D.depth of water against a distance base
第6题：
Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean ______.
A.lower low water
B.high water
C.low water
D.sea level
第7题：
Contour elevations on this chart refer to heights in feet above mean ______.
A.lower low water
B.high water
C.low water
D.sea level
第8题：
153 To determine what causes the majority of quality problems in a process, a very useful tool is the: A. cause and effect diagrams.
B. flow chart.
C. control chart.
D. pareto chart.
E. trend chart
第9题：
______ is a digitized“picture”of a chart．
A.Vector chart format
B.Raster chart data
C.pixel
D.Electronic Nautical Chart
第10题：
height of contour