Test for Officers onboard about Navigation, Operational Level (CES v6.0)

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The test consisted of 80 random questions.
Total questions on this topic: 209
Your result: 86%
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Right answers:
1

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

Correct answer:

Use of Differential GPS.

Your Answer:

Use of radar ranges and bearings.
2

When making a new pilot ladder onboard the ship, which of the following ropes would be best suited as the side ropes on which the steps are fastened?

Your answer is correct:

Uncovered manila rope.
3

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?

Your answer is correct:

Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
4

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

Your answer is correct:

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”.
5

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?

Your answer is correct:

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.
6

A man is reported to have fallen overboard and the Officer of the Watch releases the lifebuoy and starts a man overboard manoeuvre, who are the first persons onboard he should inform?

Your answer is correct:

Master and Engine Room.
7

According to the International Regulations for Preventing Collisions and the illustrated lights, what type of vessel is it?

Correct answer:

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

Your Answer:

This vessel is aground.
8

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?

Your answer is correct:

It should be about 20 %.
9

What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?

Correct answer:

The heeling error magnets are upside down and/or not in the correct position.

Your Answer:

The induced magnetism from the earth’s magnetic field is very strong in that area.
10

What are the two parts of the magnetic compass error?

Your answer is correct:

Variation and Deviation.
11

You are in open water and clear conditions. You are approaching the pilot station when you hear this signal from a vessel ahead of you. What does it signify?

Your answer is correct:

That the vessel is operating astern propulsion.
12

During an STS operation with one ship at anchor, should an anchor watch be maintained?

Your answer is correct:

Both ships have normal anchor watch responsibility in addition to watching ship to ship fendering, mooring etc.
13

What radar device assists in the detection and location of a survival craft?

Your answer is correct:

SART beacon.
14

If the radar is set onto the Relative Motion Display, what would an echo of a target with no trail indicate? Note this the trail of the echo and not a vector.

Your answer is correct:

The target is on the same course and speed as own ship.
15

With the Master on the bridge, when is the Officer of the Watch officially relieved of their responsibility for the vessel?

Your answer is correct:

When the Master informs the Officer of the Watch that he is taking over the “con”.
16

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

Your answer is correct:

A large HDOP value is displayed on the screen.
17

What is the direction of wind associated with an anticyclone (area of high pressure) in the Northern Hemisphere?

Your answer is correct:

Clockwise around the high pressure.
18

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

Correct answer:

That the chart datum is also WGS84 or there are corrections.

Your Answer:

Ensure that the chart has been corrected up to date.
19

When splicing an eye on a mooring wire (using the recommended 5 full tucks and 2 half tucks) the effective breaking strength of the wire may be affected by the splice. What would be the anticipated change in the breaking strength of the wire?

Your answer is correct:

A reduction in strength of 10 % to 15 %.
20

Where can the size of the Magnetic Compass Error be found?

Your answer is correct:

By taking a transit bearing of two fixed geographical positions and comparing it with the bearing of the same points on the chart.
21

What is the correct understanding of the term “Block Coefficient” as applied to a ship?

Your answer is correct:

The comparison of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.
22

In the figure, which letter gives the correct understanding of the term “LENGTH OVERALL”?

Your answer is correct:

Length Overall is indicated by B, in the figure.
23

What does this flag mean?

Your answer is correct:

I have a diver down; keep well clear at slow speed.
24

The ship is required to be stopped in the water as quickly as possible, but without major changes to the ship’s heading. What is the most effective method to achieve this?

Your answer is correct:

The use of the rudder hard over both sides combined with reducing engine power, a method known as “high frequency rudder cycling”.
25

The positions of the ship provided by the GPS receiver should always be verified by other means. Which of the following suggested methods would be the most accurate?

Your answer is correct:

Radar ranges of three distinctive shore objects.
26

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

Your answer is correct:

The draught of an iceberg varies with the type of berg and its age.
27

What action should the Officer of the Watch (OOW) take if he is forced to make a major deviation from the voyage plan?

Your answer is correct:

Inform the Master.
28

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?

Correct answer:

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.

Your Answer:

Three shapes shall be displayed on the tug, where they can best be seen, in a vertical line, the upper and lower being balls and the middle one a cylinder. The signal flag “T” shall also be flown on the tug. A diamond shall be displayed aft on the tow.
29

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

Your answer is correct:

The density of the water.
30

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?

Your answer is correct:

Give the engines a short kick ahead.
31

You are in an area of restricted visibility. You hear this sound signal. What does it mean?

Correct answer:

That there is a vessel in distress nearby.

Your Answer:

That there is a vessel at anchor in the vicinity.
32

Where would the “pivot point” be considered to be located when the ship is proceeding at full speed ahead and there is no wind or current?

Your answer is correct:

At about 1/6 of the ship’s length from the bow.
33

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

Your answer is correct:

All of the suggested answers.
34

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”?

Your answer is correct:

The line should be turned up on the bitts, fig. 1.
35

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?

Your answer is correct:

All of the possible answers.
36

Who is responsible for the number and the position of any tugs to be used during a mooring operation?

Your answer is correct:

The Master, with consideration of the advice of the pilot.
37

How will the ship behave if it experiences a complete loss of power (black out) in the situation illustrated?

Your answer is correct:

The vessel will gradually swing to port and the speed will slowly reduce.
38

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

Your answer is correct:

Maintain a slow speed just sufficient to maintain steerage.
39

What can be a cause of error observed on a gyro compass reading?

Your answer is correct:

Incorrectly set latitude and speed values.
40

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

Your answer is correct:

Light winds and fair weather, sometimes fog.
41

What do the shapes that this vessel is displaying tell us about her?

Your answer is correct:

That she is not under command.
42

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

Your answer is correct:

11 00.
43

What is the purpose of a sea anchor?

Your answer is correct:

To keep the lifeboat steady against the sea/wind.
44

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?

Your answer is correct:

True vectors.
45

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?

Your answer is correct:

All of the possible answers.
46

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

Your answer is correct:

Permanent and induced magnetism in the ships structure.
47

The ship has a single fixed pitch right-handed propeller and is going astern as illustrated. What is the most likely way the ship will react in these circumstances?

Correct answer:

The stern will “back” into the wind and the ship’s heading will swing to starboard.

Your Answer:

The stern will fall off to starboard, making the heading swing to port.
48

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?

Your answer is correct:

Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
49

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?

Your answer is correct:

They shall be given on one whistle only.
50

In a canal without water flow, if a vessel was approaching a bank at an angle, what would be the probable effect on it?

Your answer is correct:

The vessel’s bow is pushed away from the bank.
51

The Second Officer, when on watch on the bridge, is often referred to as the OOW. What does OOW actually stand for?

Your answer is correct:

Officer of the Watch.
52

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

Your answer is correct:

Maintain a slow speed just sufficient to maintain steerage.
53

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

Your answer is correct:

Pivot Point.
54

You are proceeding up a river, with berths on both banks. You see this flag hoist on a vessel moored on a berth ahead. What does it mean?

Your answer is correct:

You should proceed at slow speed when passing me.
55

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?

Your answer is correct:

Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after 3 hours.
56

In the diagram, the amount of water under the keel is indicated by the letter “C”. Which bridge instrument would measure this value?

Your answer is correct:

Echo Sounder.
57

What is the purpose of a sea anchor deployed from a lifeboat?

Your answer is correct:

To keep the lifeboat’s heading against the wind and sea and reduce drift.
58

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

Your answer is correct:

Light winds and fair weather, sometimes fog.
59

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

Correct answer:

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

Your Answer:

That there is another vessel nearby, but that she is at anchor.
60

If a DSC distress alert is received on board your ship, what is the first action that should be taken?

Your answer is correct:

Listen for a distress message on the appropriate radio frequency for five minutes.
61

In the Beaufort Scale of Wind Force, what is the Beaufort number associated with the wind force known as a “Gale”? This should not be confused with a “Near Gale” or “Strong Gale”?

Your answer is correct:

Eight (8).
62

You are approaching the port entrance. What do these lights mean?

Your answer is correct:

A vessel may proceed only when she has received specific orders to do so.
63

What is the correct understanding of the term “Block Coefficient” as applied to a ship?

Your answer is correct:

The comparisons of the underwater shape of the ship, to a rectangular block of the same extreme dimensions.
64

If a mooring winch brake tension is set to 60 tons, the setting has a safely allowance, what would be the maximum breaking load (MBL) of a wire used on the winch?

Your answer is correct:

100 tons.
65

What are the limits of a passage or voyage plan?

Your answer is correct:

From berth to berth.
66

According to the International Regulations for Preventing Collisions and the illustrated lights, what type of vessel is this and from what direction is it viewed?

Correct answer:

This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 metres in the direction of the all-round red light. Looking at it from astern.

Your Answer:

This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 m in the direction of the all-round white light. Looking at its port side.
67

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

Your answer is correct:

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.
68

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

Your answer is correct:

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.
69

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

Your answer is correct:

The draught of an iceberg varies with the type of berg and its age.
70

If a distress signal is received on board your ship, what should be the first action that should be taken?

Your answer is correct:

Attempt to establish contact with the distressed vessel.
71

What are the additional duties required by the Officer of the Watch when navigating in fog?

Your answer is correct:

Sound fog signal, effective radar watch reporting ship movements to Master and keep a good lookout for ships and fog signals.
72

What does this signal flag indicate when seen on a vessel in a port approach?

Your answer is correct:

I am in distress and require immediate assistance.
73

Two ships are meeting in a restricted channel as illustrated. Which of the following actions would be the most suitable to take on both vessels as they approach and pass each other?

Your answer is correct:

Slow down if possible without losing steerage and be prepared for prompt application of rudder to counteract any swing as they approach and pass each other.
74

Can anything be done on a vessel with forward speed, to reduce the change in heading caused by a right hand fixed pitch propeller being put astern?

Your answer is correct:

Yes, the rudder can be put to port.
75

Why should a Ground Stabilised True Motion radar display not be used for anti-collision purposes?

Your answer is correct:

The “aspect” of the target is confused, so the Regulations for Preventing Collisions cannot be accurately applied.
76

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

Your answer is correct:

CQ.
77

What type of vessel is this and from what direction are you seeing it?

Your answer is correct:

This is a vessel engaged in fishing other than trawling, making way through the water, with outlying gear extending more than 150 m in the direction of the all-round white light. I am looking at her port side.
78

When should a ship’s officer use some of the English language found in the IMO’s publication “Standard Marine Communication Phrases”?

Your answer is correct:

In circumstances described in all of the answers provided.
79

Which method is used to make a physical connection between a rescue vessel and a wreck?

Correct answer:

Rocket line.

Your Answer:

Heaving line.
80

You are on a power-driven vessel underway in open water. This vessel is sighted directly ahead. The distance is closing slowly. What action will you take under the International Collision Regulations and why?

Correct answer:

I will maintain my course and speed. The other vessel is being overtaken and is therefore obliged to keep out of the way by rule 13.

Your Answer:

The vessel is on a steady bearing and the distance is closing. I will therefore take avoiding action, altering course to starboard and sounding one short blast under rules 14 and 16.
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