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You will turn your vessel in a narrow canal by use of two tugs with same power. The wind varies in the range moderate/strong. Where/how to use the tugs?

Make the tug fast in centre bow fairlead for pulling

Make the tug fast on port shoulder to pull

Make the tug fast on starboard shoulder to push

Your vessel is to turn in a narrow canal by use of one tug (turn to port with the bow). In which position and how would you use the tug? (Vessels engine will be used as well).

Fast FWD and AFT in center lead to pull the vessel out from the jetty and make it in position for voyage

Pushing on vessel's flat side to keep the vessel in position when unmooring

Make fast on ship's flat side to keep the vessel in position when unmooring and pull vessel out from the jetty

Make fast the forward tug, and the aft tug stand by

Your vessel is to unmoor. Two tugs will assist at the unmooring. Which position and how do you want to use the tugs?

Make fast on the vessel's shoulder to push and pull

Pushing at vessel's flat side where it is needed

Your vessel is going alongside. One tug will assist at the mooring. Which position and how do you want to use the tug?

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

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?

You will anchor a VLCC at a depth of 80 meters in open water with swell. How much chain will you use?

You are towing a vessel. The total length of the tow is 190 meters. What daylight signals are to be used?

Secure the wire all way aft, to prevent wire moving out of center

A vessel towing with a total length of 1350 meters, expecting strong wind from starboard side. The towing wire is connected 20 meters from towing vessels stern rail. What is to be done?

Wire connected to chain through center lead or anchor chain

Cross Atlantic towing.Which of these systems would you use?

A vessel towing with a total length of 1200 meters. The vessel in tow is 200 meters with a draught of 12,5 meters. Towing vessel length is 45 meters and draught 6 meters forward and 7,5 meters aft. What draught do you expect the maximum draught of towing to be?

You are berthed with a steady offshore beam wind of 30 knots. This wind suddenly increases to 60 knots. When this happens , the force driving the vessel off-berth will be:

Your vessel is berthed at a seaberth with an underkeel clearance of 5 times the draft and a cross or beam current of 1 knot is acting on you with force of, let us say, 50 tons. You move to another shallower berth with your draft exactly the same as before and with exactly the same beam current of 1 knot acting on you. However your underkeel clearance here is only 0.5 times the draft. If the current was exerting a force of 50 tons on you before, how much force will it exert now?

Wire takes 45 % of the extra load. Rope takes 55 % of the extra load

Wire takes 55 % of the extra load. Rope takes 45 % of the extra load

Wire takes 95 % of the extra load. Rope takes 5 % of the extra load

Two lines sent out and pretensioned equally have the same length, same breaking strength and same directional load. However, one is made of wire (which has a full load elastic elongation of about 1,5 % of its length) and the other made of nylon (which has a full load elongation of about 30 % of its length). If a sudden gust of wind increase the load on the lines, this increased load will be shared as follows:

A will take 1/3 of the extra load. B will take 2/3 of the extra load

A will take 1/2 of the extra load. B will take 1/2 of the extra load

A will take 1/4 of the extra load. B will take the 3/4 of the extra load

A will take 3/4 of the extra load. B will take 1/4 of the extra load

Two synthetic fibre lines of the same size and material are run out and pretensioned at the berth. However one line (line A) is secured to a shore bollard twice as far as the other line (line B). If a sudden increase in wind now causes an extra load to come on the lines, the extra load will be shared by the lines as follows:

It is important that the brake holding capacity of a self stowing winch drum should not exceed the breaking strength of the wire or rope wound onto it. A certain percentage of extra strength is therefore recommended for the wire or rope over the brake holding capacity of the winch. So, for a winch of brake holding capacity of 60 Tons you would order a wire of breaking strength:

No change in strength but some elongation

If a nylon mooring rope gets wet by immersion in water it undergoes:

If you are required to splice an eye on a mooring wire (using the recommended 5 full tucks and 2 half tucks) the effective breaking strength of the wire will now be affected by the splice, and you would expect:

How do you consider the indicated speed for berthing?

Your ship is operating with a right handed propeller. Which angle of approach is most favourable? No wind or current.

Your ship is operating with a right handed propeller. Before coming astern, how should you apply the rudder?

Your ship is operating with a right handed propeller and no thrusters. What can you do to control your ship in the situation shown?

The bows of the ships will be pushed away from each other

The bows of the ships will be sucked together

There will be none of the mentioned effects

You are meeting with another ship in confined waters. What can happen as the ships approach each other?

The two ships will be pushed towards the banks

The bow of your ship will be sucked towards the stern of the other ship

Your ship will not be affected in this situation

Due to suction, the two ships will be sucked together

You are about to pass another ship in a close situation. What can happen in this situation?

Stop the engine before meeting, and apply engine during meeting

You are on ship A. What would you do before meeting ship B?

There is nothing special to watch out for

The bow may be sucked against, and the stern may be pushed away from the other ship as you pass

That the other ship does not increase its speed

You are performing an overtaking manoeuvre in confined waters. What should you watch out for?

The bow will be pushed from away from the bank

The stern will be pushed away from the bank

You are transitting a narrow channel. What can happen in this situation?

Give hard port rudder to get the ship back in the middle of the channel

Do nothing as the ship will handle itself

Put your engine full astern to stop your ship

Give starboard rudder in order to balance the force of the bank effect and rudder effect

In the shown situation, the bow of your ship is pushed away from the bank. How can you handle this?

Increase in draft to the point on your ship which is closest to the bottom

Decrease the speed as much as practicable

Increase speed if the ship is not already on full ahead

Increased velocity and decreased waterpressure around the ship's hull

Decreased velocity and increased water pressure around the ship's hull

Increased effect of gravity due to closeness of the sea-bed

The bow and stern wave make the ship sink lower in the water

What is the reason for the effect we call squat?

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