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При плавании во льду по разводьям и полыньям можно ли с ухудшением видимости лежать в дрейфе в полынье?
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а. Да
в. Нет
с. Да, если толщина льда менее 0.5 м
d. Да, если толщина льда менее 1
| Overshoot is an expression used when talking about a ship's steering ability. What does this mean? | ||
| A B C D | It is the way a ship turns when the helm is put to the hard over position. It is the way a ship continues to turn after counter-rudder is applied. It is the way a ship continues to turn when the helm is put amidship. It is the way a ship responds when moving the helm from hard to port to hard to starboard. |
| You are performing an overtaking manoeuvre in confined waters. What should you watch out for? | ||
| A B C D | The bow may be pulled towards and the stern may be pushed away from the other ship as you pass. The change in speed of the other ship. The change in your underkeel clearance. The stern may be pulled towards and the bow may be pushed away from the other ship as you pass. |
| What would you say about a ship which is course unstable? | ||
| A B C D | She will require large rudder angles to maintain course. When you apply rudder, she will continue to turn long after the rudder is returned to amidships. When you put rudder amidships, she will quickly return to a straight course. When you apply rudder, she will take time before answering. |
| You want to stop your ship as quickly as possible without too much change in the heading. What can you do to achieve this? | ||
| A B C D | Put the engines full astern. Make a complete turning circle. Do a zigzag manoeuvre. Use the rudder hard over both sides while reducing engine speed. |
| The position of the pivot point when making sternway is approximately.... | ||
| A B C D | one quarter of the length of the ship from the stern one quarter of the length of the ship from the bow amidships one eight of the length of the ship from the stern | |
In the diagram of a ship's turning circle, what is the distance A known as?
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| A B C D | Advance. Tactical Diameter. Stopping Distance. Transfer. |
| Your ship is equipped with a right handed propeller. As you go full astern from full ahead, the ship is sheering to starboard. Is there anything you can do to reduce the change in heading? | ||
| A B C D | No. Put the rudder hard to port. Swing the rudder from side to side. Put the rudder hard to starboard. | |
| You are sailing in shallow water, with 15 % underkeel clearance. Coming full astern from full ahead, how will your course change compared with deep water? | ||
| A B C D | Large change at first then changing slightly. The heading will change only slightly. The heading will not change. The heading will most likely change by a large amount. | |
| The rudder is hard over, engine full ahead in shallow water. How much rudder lift force remains when the engine is stopped? | ||
| A B C D | About 80%. About 50%. About 10%. About 5%. | |
| What shape of a hull would you say a course unstable ship would have? | ||
| A B C D | A long, slim hull. A length to beam ratio greater than 5.5. A length to beam ratio less than 5.5. A length to beam ratio less than 7. |
ВАРИАНТ 4