Question 995Navigation General

The correct answer is A) The contact is on the same course and speed as your vessel. This is correct because if a contact on the radar screen has remained in the same position relative to your vessel for several minutes, while your vessel is making 10 knots, it indicates that the contact is traveling on the same course and at the same speed as your vessel. The relative motion between the two vessels is zero, resulting in the contact remaining in a fixed position on the radar screen. The other options are incorrect because B) the radar is not necessarily showing false echoes, C) the contact is not on a reciprocal course at the same speed, and D) the contact is not dead in the water, as it is moving at the same speed as your vessel.