ASSIGNMENT  8 Textbook Assignment: "Dead Reckoning, Piloting, and Electronic Navigation", chapter 8, pages 8-1 through 8-22. 8-1. What is the primary purpose of dead 8-2. 8-3. 8-4. 8-5. reckoning  (DR)  navigation? 1.    To  check  the  accuracy  of electronic navigation 2.    To  indicate  a  reasonable account of the ship's position 3.    To navigate in open ocean with no  landfall  in  sight 4.    To show where the ship has been DR  positions  are  always  accurate. 1.    True 2.    False Which of the following is NOT a rule  for  plotting  a  DR  position? 1.    Should be plotted every 1/2 hour 2.    Should be plotted every hour 3.    Should be plotted when a single LOP is obtained 4. Should be plotted at every speed change. Regarding the DR plot, a new course line need not be plotted from each new fix or running fix. 1.    True 2.    False If a ship made good the exact course  and  speed  ordered,  and  there was no wind or current, dead reckoning  would,  at  times,  provide an accurate indication of the ship's  position. 1.    True 2.    False 8-6. When a DR position should be plotted is determined by a total of how  many  rules? 1.    Five 2.    Six 3.    Seven 4.    Four IN ANSWERING QUESTIONS 8-7 THROUGH 8-10, SELECT  THE  DEFINITION  FROM  COLUMN  B  THAT MATCHES THE TERM IN COLUMN A. RESPONSES ARE USED ONLY ONCE. A.  TERM B. DEFINITION 8-7. Heading 1. The direction in which a ship is 8-8. Course steered 8-9. Course  line 2.  Expressed  in degrees  measured 8-10.  Fix clockwise  from 000°  through  360° 3. Position of high accuracy 4. Course to be steered laid on a chart 8-11. 8-12. 8-13. 8-14. The term "speed" is defined as the ship's ordered speed. 1.    True 2.    False Which  of  the  following  information is determined by laying out the ship's course and speed on the chart? 1.    DR  position 2.    Estimated  position 3.    Ship's  heading 4.    Ship's  speed The  effects  of  currents  are  always taken  into  account  when  determining a DR position. 1.   True 2.    False When data such as the direction and speed of the current are applied to a  DR  position,  the  resultant position is known as which of the following  points? 1. Fix 2.    Estimated  position 3.    Running  fix 4.    Line  of  position 49