Тест для Officers onboard about Navigation, Operational Level (CES v6.0)

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Правильные ответы:
1

The ship is navigating in dense fog where the visibility is less than one mile. The Arpa radar is set on a range 12 miles on a course of 314° and own ship has a vector as shown. What is the vector mode selected on the Arpa?

Ваш ответ правильный:

True vectors.
2

What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?

Ваш ответ правильный:

Light winds and fair weather, sometimes fog.
3

What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?

Ваш ответ правильный:

Draught of the ship.
4

A ship is being overtaken by another ship while proceeding along a river. What should be the required procedure?

Ваш ответ правильный:

The overtaking vessel should request permission from the other ship by sounding two prolonged blasts followed by two short blasts on the whistle or by direct VHF contact.
5

Which of the following precautions should be taken when work is to be carried out on the radar scanner unit on the mast?

Ваш ответ правильный:

A “Not to be used” sign on all radars and fuses for the complete radar systems to be removed.
6

How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?

Ваш ответ правильный:

Select ground stabilised true motion display and alter course so that own ships true vector passes through the middle of the entrance to the channel.
7

What are the immediate duties of the bridge Officer of the Watch when the ship suddenly runs into a fog bank?

Ваш ответ правильный:

Commence sounding the fog signal, engines on standby, call the Master and lookout, if not already on duty.
8

The tug has been released and is all clear. As officer in charge of that operation, should this be reported and to whom?

Ваш ответ правильный:

Reported all clear to the Bridge.
9

How can the effects of Squat be minimized, when a ship is proceeding in shallow water?

Ваш ответ правильный:

Maintain a slow speed just sufficient to maintain steerage.
10

What is the correct understanding of the term “bank effect”? If a ship was approaching the bank at an angle, what would be the effect on the ship?

Ваш ответ правильный:

The vessel’s bow is pushed away from the bank.
11

What are the main components causing the magnetic compass to require a regular evaluation and compass correction?

Ваш ответ правильный:

Permanent and induced magnetism in the ships structure.
12

Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?

Ваш ответ правильный:

All of the suggested answers.
13

What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put “Full Astern”?

Ваш ответ правильный:

Varies, but can be determined from trial data.
14

What is the depth of an iceberg below the surface of the sea?

Ваш ответ правильный:

The draught of an iceberg varies with the type of berg and its age.
15

The ship is drifting in the open sea with a temporary engine breakdown. The ship is equipped with GPS navigation equipment. What should the bridge Officer of the Watch do in this situation?

Ваш ответ правильный:

All of the possible answers.
16

The vessel is steaming off the coast when the engine room informs the bridge it must stop engines immediately. Shortly afterwards they informed the bridge they would need a least three hours to fix it. Which of the following actions would be the most suitable taken by the bridge?

Ваш ответ правильный:

Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after 3 hours.
17

According to rule 13 of the International Regulations for Preventing Collisions at Sea, what is the definition of “an overtaking vessel”?

Ваш ответ правильный:

When coming up with another vessel from a direction more than 22,5° abaft her beam.
18

What actions should the Officer of the Watch take when the ship’s steering gear fails?

Ваш ответ правильный:

All of the suggested answers.
19

Which part of the magnetic compass error changes with a change in the course steered?

Ваш ответ правильный:

Deviation.
20

You are in an area of restricted visibility and hear this signal. It is repeated at 2 minutes intervals. What does it indicate?

Ваш ответ правильный:

That there is another vessel nearby, that she is underway, but stopped and making no way through the water.
21

What is the colour and characteristic of a “towing light”, as defined in the International Regulations for Preventing Collisions at Sea?

Ваш ответ правильный:

Yellow, fixed, seen over an arc of 135° and so arranged as to display 67,5° from right aft on each side of the vessel.
22

A ship normally turns (swings) around a point which is not the centre of gravity. What is this point normally called?

Ваш ответ правильный:

Pivot Point.
23

When using the echo sounder in a river the soundings indicated may be incorrect, what would be the most probable cause of the error?

Ваш ответ правильный:

The density of the water.
24

What does this flag mean?

Ваш ответ правильный:

I have a diver down; keep well clear at slow speed.
25

What is the purpose of a fire wire?

Ваш ответ правильный:

A wire for pulling burning ships off the pier.
26

You are proceeding along a coastal route when you hear this signal. The visibility is severely restricted. What does the signal mean?

Ваш ответ правильный:

There is a vessel aground in the vicinity. She is more than 100 metres in length. She is sounding an additional warning to approaching vessels that they are “running into danger”.
27

The following vessels are all required to make the same sound signal when in or near an area of restricted visibility: a vessel not under command; a vessel restricted in her ability to manoeuvre; a vessel constrained by her draught/a sailing vessel; a vessel engaged in fishing; a vessel engaged in towing or pushing another vessel. What is that signal?

Ваш ответ правильный:

One prolonged blast, followed by two short blasts, at intervals of not more than 2 minutes.
28

Which of the four calculations illustrated is the correct one to determine the latitude of the observer when the sun is on the meridian?

Ваш ответ правильный:

Calculation 3 is correct.
29

What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?

Ваш ответ правильный:

Light winds and fair weather, sometimes fog.
30

Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?

Ваш ответ правильный:

The (IMO) Standard Marine Communication Phrases (SMCP) booklet.
31

The lights here show those that must be exhibited by a vessel engaged in towing, as per rule 24 of the International Collision Regulations. But how long is the tow behind this vessel?

Ваш ответ правильный:

It exceeds 200 metres.
32

The rudder is in the hard over position with the propeller stopped and the ship turning slowly. On a ship with a single fixed pitch right handed propeller and no thrusters, what can be done to make the ship increase the speed of turn without significantly increasing the forward speed of the ship?

Ваш ответ правильный:

Give the engines a short kick ahead.
33

The gyro compass can suffer from a compass error and may need to be allowed for, when steering a course in a dangerous navigational area. What is the probable cause of the error?

Ваш ответ правильный:

An uncorrected course and speed error.
34

What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?

Ваш ответ правильный:

Draught of the ship.
35

Which of the following answers most suitably cover the standard duties of the bridge Officer of the Watch when the ship is at anchorage?

Ваш ответ правильный:

Display anchor signal, check the ships position and keep a good lookout.
36

What is the description for a sidelight, as shown in rule 21 of the International Regulations for Preventing Collisions at Sea?

Ваш ответ правильный:

A green light on the starboard side and red light on the port side, showing an unbroken light over an arc of 112,5°, from right ahead to 22,5° abaft the beam on the respective side.
37

You are proceeding along a coastal route when you hear this signal. The visibility is severely restricted. What does the signal mean?

Ваш ответ правильный:

There is a vessel aground in the vicinity. She is more than 100 metres in length. She is sounding an additional warning to approaching vessels that they are “running into danger”.
38

Two ships travelling in opposite directions are to pass each other in a narrow river, as illustrated. Explain what is likely to happen as they pass each other?

Ваш ответ правильный:

Due to interaction, the bows will repel each other, and then when alongside each other the two ships will be sucked together and finally the sterns will be repelled as they start to pass clear.
39

What would be considered the most favourable heading of a ship when launching a lifeboat?

Ваш ответ правильный:

The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.
40

If your vessel is fitted with wires on self-stowing “split drum” winches, the advantage of having these split drum winches is:

Ваш ответ правильный:

All the listed alternatives.
41

The Master has decided to “single up” to a spring line at each end as the last lines to let go whilst unmooring. Which of the following methods should be used to hold the lines, whilst waiting for the order to “let go”?

Ваш ответ правильный:

The line should be turned up on the bitts, fig. 1.
42

What is important to check when transferring a position from the GPS output to a paper chart?

Ваш ответ правильный:

Any necessary corrections are applied to convert between the GPS datum and the chart datum.
43

What is the correct understanding of the term “Isobar”?

Ваш ответ правильный:

An “Isobar” is a line joining places of equal pressure.
44

Which is the “CENTRE LINE”, in the figure?

Ваш ответ правильный:

The Fore and aft Centreline is indicated by A, in the figure.
45

You are on a tug and are towing an unmanned barge. You are restricted in your ability to manoeuvre. The total length of the tow is 219 metres. What daylight signals are required by the International Regulations for Preventing Collisions at Sea?

Ваш ответ правильный:

A diamond shape, where it can best be seen shall be displayed on the tug and the tow. Three shapes shall also be displayed in a vertical line, the upper and lower being balls and the middle one a diamond. Diamond shape.
46

You are in an area of restricted visibility, close to a port. You hear this signal. What vessel does it come from and what additional information does the signal provide?

Ваш ответ правильный:

A vessel at anchor, more than 100 metres in length. She is sounding the additional signal to give warning of her position.
47

What is the correct understanding of the term “a ship with good Directional Stability”?

Ваш ответ правильный:

A ship which when the rudder is left amidships, it will continue on approximately a straight course.
48

This vessel is sighted ahead and slightly to port. What is her situation? What will you do?

Ваш ответ правильный:

This vessel is aground. I will navigate with extreme caution given the nature of the hazard.
49

Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?

Ваш ответ правильный:

The collision regulations are based on ship courses through the water.
50

Visual signals are used by aircraft in search and rescue operations to direct ships towards a casualty. The signals shown here are part of a sequence. What does it indicate?

Ваш ответ правильный:

The assistance of your vessel is no longer required.
51

What would be considered the most favourable heading of a ship when launching a lifeboat?

Ваш ответ правильный:

The ship should steer about 30° off the prevailing weather and sea with the boat to be launch on the leeside.
52

The ship is drifting in the open sea with a temporary engine breakdown. The ship is equipped with GPS navigation equipment. What should the bridge Officer of the Watch do in this situation?

Ваш ответ правильный:

All of the possible answers.
53

The maximum height that a pilot should be required to climb on a pilot ladder before reaching the deck or stepping onto an accommodation ladder platform is:

Ваш ответ правильный:

9 mtrs.
54

The IMO Standard Marine Communication Phrases are recommended to be used when the ship’s Officer is verbally talking to whom?

Ваш ответ правильный:

In circumstances described in all of the answers provided.
55

Is the location of the Compass Binnacle critical?

Ваш ответ правильный:

Yes, for the reasons stated in all of the suggested answers.
56

A balanced rudder has some of the rudder area forward of the rudder axis. About how much area should this be to call it a balanced rudder?

Ваш ответ правильный:

It should be about 20 %.
57

Which of the answers best summarises the information which should be provided for the bridge Officer of the Watch within an effective Voyage plan?

Ваш ответ правильный:

All of the suggested answers.
58

When navigating along a coastline what should be considered the most accurate method of navigating?

Ваш ответ правильный:

Use of Differential GPS.
59

What is correct UTC in this example? Approx. Pos: N49° 51′ W35° 23′, zone +2, Local Time 0900.

Ваш ответ правильный:

11 00.
60

What is the two letter signal, to be used by flags, radiotelephony or radiotelegraphy, meaning “Calling All Ships”?

Ваш ответ правильный:

CQ.
61

What, by definition in the International Collision Regulations, is a “vessel restricted in her ability to manoeuvre”?

Ваш ответ правильный:

A vessel which from the nature of her work is restricted in her ability to manoeuvre as required by the Rules and is therefore unable to keep out of the way of another vessel.
62

When navigating using the GPS, how does the GPS display indicate when the accuracy of the displayed position is reduced?

Ваш ответ правильный:

A large HDOP value is displayed on the screen.
63

In an extreme case, in addition to having your winch brakes as tight as can be, you can increase the brake holding capacity of the winch drum by putting it in gear and setting the power to the “heave” position. However this may cause:

Ваш ответ правильный:

All the listed alternatives.
64

Why should Ground Stabilised True Motion display mode be avoided when using the ARPA for anti-collision purposes?

Ваш ответ правильный:

The collision regulations are based on ship courses through the water.
65

Two mooring lines are pretensioned equally and have the same length, same breaking strength and same directional load. However, one is made of wire (with a full load elastic elongation of about 1,5 % of its length) and the other made of nylon (with a full load elongation of about 30 % of its length). If a gust of wind increases the load on the lines, how will it be shared?

Ваш ответ правильный:

Wire takes 95 % of the extra load. Rope takes 5 % of the extra load..
66

Where can a ship expect an act of piracy to take place?

Ваш ответ правильный:

All over the world.
67

What is “AIR DRAUGHT”, in the figure?

Ваш ответ правильный:

Air draught is indicated by C, in the figure.
68

When a ship is lying at anchor in a tidal area using both forward anchors, to what particular aspect should the officer of the watch be paying special attention?

Ваш ответ правильный:

When the ship swings to the tide the direction of swing should be controlled to avoid the anchor cables becoming wrapped round each other.
69

The Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the “con” of the ship. What actions should the Officer of the Watch (OOW) take in this situation?

Ваш ответ правильный:

Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
70

The ship’s rudder is full over when the ship’s engines are full ahead. Will the turning effect (lift force) of the rudder be changed when the engine is stopped?

Ваш ответ правильный:

Yes, the lift force will be dramatically reduced when the engines are stopped.
71

A ship is equipped with a right-handed fixed pitch propeller, which when going from Full Ahead to Full Astern will make the ship sheer to starboard. Can anything be done to reduce this change in heading?

Ваш ответ правильный:

The rudder can be put to Hard to Port to reduce the water from to the right side of the propeller.
72

The Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the “con” of the ship. What actions should the Officer of the Watch (OOW) take in this situation?

Ваш ответ правильный:

Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
73

The ship’s engine is going astern and the ship is piking up sternway. The rudder is amidships and the ship has a single, right-handed, fixed pitch propeller. What would be expected to happen?

Правильный ответ:

The ship will probably start to change heading to starboard and stern speed will increase.; The ship will probably start to change heading to port and stern speed will increase.

Ваш ответ:

The ship will probably start to change heading to starboard and stern speed will increase.; The ship will move astern at an increasing speed and the stern start to swing off to starboard.; The ship will probably go straight astern without a change in heading and the stern speed will increase.
74

Which of the following figures drawn on the plane of the Meridian is correct for an observer in position Latitude 30° 00′ North; Longitude 15° 00′ West, when observing the sun on the meridian, if the sun’s Declination is 15° 00′ South?

Ваш ответ правильный:

Figure 4 is correct.
75

When should gangway nets be rigged?

Ваш ответ правильный:

Whenever the gangway is rigged.
76

If whistles are fitted on a vessel at a distance apart of more than 100 metres, will manoeuvring and warning signals, as defined by rule 34 of the International regulations for Preventing Collisions at Sea, be given on one or both whistles?

Ваш ответ правильный:

They shall be given on one whistle only.
77

What is the situation of this vessel?

Ваш ответ правильный:

This vessel is not under command, but is making way through the water.
78

What does this signal hoist mean?

Ваш ответ правильный:

I require immediate assistance.
79

What are the limits of a passage or voyage plan?

Ваш ответ правильный:

From berth to berth.
80

Rule 12 of the International Collision Regulations prescribes the action to be taken by a sailing vessel when meeting another sailing vessel. This depends on the direction of the wind relative to each vessel. In the situation shown here, which sailing vessel (A or B) must keep out of the way of the other?

Ваш ответ правильный:

Sailing vessel A must keep out of the way of sailing vessel B.
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