COXSWAIN CHALLENGE QUIZ NAME:

1. If the compass error is 20°E and the variation is 7°W what is the deviation?

2. An object bears 090⁰C. The variation is 6⁰W and the deviation was 8⁰E. What is the true bearing of the object? What is the error?

3. An object was bearing 003°T. If the deviation was 14°W and the variation 19°E what is its compass bearing? What is the error?

4. With vessels in sight of one another, what do these sound signals indicate;

One short blast

One long, one short, one long, one short.

One long, two short.

Three short

Two long, two short

One long

Five short

Two long, one short

Two short

One long, three short.

5. How far must you keep from a swimmer in the water when travelling at more than ten knots ?

6. How far must you keep from a dredge or work barge when travelling at more than 4 knots ?

7. With the aid of a diagram draw the colours, the arcs of visibility and positioning of the navigation lights you would find on a power driven vessel when underway. What would be the range of visibility of each light?

8. Describe the lights to be displayed by a not under command.

9. Describe the lights to be displayed by a vessel greater than 100m in length aground. What sound signal would it make in restricted visibility?

10. What sound signal would a sailing vessel make in restricted visibility? How often should it be sounded?

11. If a vessel drawing 2.8M passed over a reef charted at 3.2M when the tide was 1.1M over datum what would be the under keel clearance?

12. Air in a high pressure system is descending and flowing away from the centre, and air in a low pressure system is ascending and moving towards the centre of the system?

TRUE FALSE

Ranger Hope © 2008