海圖上羅經面(Compass Rose)之內、外圈各代表何方位?若某一羅經面中間標註
“Var 14°45′ W(1990) + Annually Increase 2′",其意義為何?該海域2007 年之磁差
(Var.)應為若干?(30 分)
96 年公務人員特種考試第二次警察人員考試試題
代號:
類 別: 水上警察人員航海組
全一張
(背面)
40460
附表
TABLE 18
Distance of an Object by Two Bearings
Difference between the course and first bearing
Difference
between
the course
and second
bearing
20°
22°
24°
26°
28°
30°
32°