文档介绍：《航海英语(二三副)》
一、单项选择题(共200题)
  1、 Metric units are used for all measurements of depths,heights and short distances,but where feet/fathoms charts are referred to,these_____units are given in brackets after the metric values for depths and heights shown on the chart.
   
    
    
    
  3、 A position obtained by applying only your vessels course and speed to a known position is a ____
   A. dead-reckoning position
    B. fix
    C. probable position
    D. running fix
  4、 A bluff bar is a bar ______
   A. extending out from a bluff alongside the river
    B. that tends to give a false indication of its position
    C. that has a sharp drop off into deep water
    D. that is perpendicular to the current
  5、 In very high latitudes,the most practical chart projection is the_____.
   
    
    
     conformal
  6、 A red pillar light -buoy,Fl(2)5 S,is to be substituted for the green conical light buoy close the stranded above sentence mainly refers to_____.
    red buoy is to be replaced by a green buoy
     green buoy is to be replaced by a red buoy
     a red buoy or a green buoy is to be replaced
     a red buy nor a green buoy is to be replaced
  7、 The maximum difference between mean time and apparent time is_____.
    to the longitude expressed in time units
     l 6 minutes
     difference between the GHA of mean sun and the first point of Arie5
    °of arc
  9、 The survey information upon which a chart is based is found ______.
    the top center of the next line
     the chart title
     the lower left corner
     any convenient location
  11、_____the plete nature of the survey ,heavy draught vessels warned not to navigate within the 10 fathom line
   
     to
     been
    
  12、 0rdnance exercise is__