Ship Manoeuvring, Handling. Test 13 – Online Maritime Tests

You are sailing in shallow water, with 15% Under Keel Clearance. Coming full astern from full ahead, how will your course change be compared to deep water?

The heading will not change at all
The heading will change only slightly
Large change at first, then changing slightly
The heading will most likely change by a large amount

You are in a 360 degrees turn with engine full ahead. If you reduce speed during the turn, do you think there will be a change in turning diameter?

No, the turning diameter will only change if I reduce rudder angle.
No, the turning diameter will not change if I reduce speed.
Yes, the turning diameter will increase if I reduce speed.
Yes, the turning diameter will be smaller if I reduce speed.

You have made a turning circle at full speed in deep water. You are now going to make one with initial speed, slow ahead. Do you think the diameter will differ from that of initial full ahead?

The diameter will be the same whatever initial speed we have when starting the turn.
Yes, it will be much smaller with slow ahead.
Yes, it will be a large difference in the turning diameter between full and slow ahead.
Yes, it will be much greater with slow ahead.

Your vessel is going alongside a pier. Two tugs will assist at the mooring. Which position and how do you want to use the tugs?

Fast FWD and AFT in center lead.
Pushing on ship's flat side and make fast in the vessel for pulling if needed.
Pushing on ship's flat side not made fast to be able to move in best position if needed.
One made fast forward for pulling, one pushing aft.

You are going to leave a crowded anchorage and make a 180 degrees turn. Your ship has a right handed propeller and you can turn either way. How can you make the turn using as little space as possible?

Rudder hard to port, full astern. After you gain some sternway, rudder hard to starboard and full ahead.
Rudder hard to stb. , full ahead. Rudder hard to port, full astern. Repeating this manoeuvre until you have made the turn.
Full ahead, rudder hard to port.
Full ahead, rudder hard to starboard.

You are sailing in shallow water, with 15% Under Keel Clearance. Turning the ship around, what space do you need compared to deep water?

To port less, to starboard more space
Need less space than normal
Need more space than normal
The turning diameter of your ship is the same for all water depths

Consider the situation sketched below. What can happen if the tugmaster is not careful?

The tug may be pushed away from the ship and thus unable to assist your vessel.
The tugmaster may loose control and ram your bow with possible damage to your ship.
The tug may be turned across your bow with the danger of being turned over.
The stern of the tug may be sucked into your bow.

For which type of vessel is squatting most pronounced?

Vessel with a high block coefficient.
Supply and anchorhandling vessel. Fireboat etc.
Cargoliner.
Vessel with a very wide beam compared to length.

You have made a turning test on full speed in deep water. You are now going to make a test in shallow water. Do you think the turning diameter will be the same?

No, the turning diameter will be smaller in shallow water.
Yes, it will be the same provided the UKC is 25 % - 50 %.
No, the turning diameter will be increased in shallow water.
Yes, the turning diameter will be the same for all depths.

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