Question 971Navigation General

The correct answer is C) Ship No. 1 does not appear as an individual target due to the effect of beam width. This is correct because the radar beam width can be wide enough to encompass multiple targets within a single radar return, making them appear as a single target on the radar display. The illustration shows Ship No. 1 within the same radar beam as the headland, which would cause the individual target of Ship No. 1 to be obscured. The other answer choices are incorrect because: A) is about correcting bearings, not the radar presentation; B) the side lobe effect would not explain the missing target of Ship No. 2; and D) the multiple echo effect would not explain the missing island target, which is more likely due to the mountain's shadowing effect.