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

Результаты прохождения теста

Тест состоял из 80 случайных вопросов.
Всего вопросов по данной теме: 209
Ваш результат: 89%
Сохранить в моем резюме
Вернуться к тесту
Правильные ответы:
1

Is the location of the Compass Binnacle critical?

Ваш ответ правильный:

Yes, for the reasons stated in all of the suggested answers.
2

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

Ваш ответ правильный:

Length Overall is indicated by B, in the figure.
3

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.
4

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?

Ваш ответ правильный:

Yes, the rudder can be put to port.
5

The bridge Officer of the Watch (OOW) is plotting the ship’s position in the chartroom, when the ship is in collision with a fishing vessel. Why would the OOW be held responsible for the collision?

Ваш ответ правильный:

Under the Rules a proper lookout should be maintained at all times and by all available means.
6

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

Ваш ответ правильный:

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.
7

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

Ваш ответ правильный:

A vessel may proceed only when she has received specific orders to do so.
8

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.
9

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.
10

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.
11

Which of the following answers correctly specify the following most common rudders? a) UNBALANCED, b) BALANCED, c) SEMI-BALANCED and d) UNDERHUNG BALANCED. i. e. The number in the picture is related to the letter adjacent to the name of the rudder.

Ваш ответ правильный:

1 = a, 2 = b, 3 = c and 4 = d.
12

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

Правильный ответ:

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”.

Ваш ответ:

There is a vessel at anchor in the vicinity. She is more than 100 metres in length. She is sounding an additional warning signal to approaching vessels, directing them to “keep clear”.
13

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.
14

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

Ваш ответ правильный:

Use of Differential GPS.
15

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.
16

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

Ваш ответ правильный:

11 00.
17

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.
18

A tug is moving towards the bow of the ship to make fast and is in the vicinity of the ship’s shoulder, as illustrated. What specific danger should be considered when making this approach to the bow?

Правильный ответ:

The tug may be turned across the bow of the ship and also suffer a lose of stability with a danger of being turned over if touched by the ship.

Ваш ответ:

All of the alternative answers.
19

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.
20

What can be used to reduce the effect of the state of sea-water?

Ваш ответ правильный:

Vegetable/Fish Oil.
21

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.
22

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

Правильный ответ:

Deviation.

Ваш ответ:

Variation.
23

The ship is to berth alongside a quay in calm conditions of no wind or current. The ship has a signle fixed pitch right handed propeller. Which angle of approach would be considered the most favourable?

Ваш ответ правильный:

No. 2.
24

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

Ваш ответ правильный:

Clockwise around the high pressure.
25

What is the purpose of a fire wire?

Правильный ответ:

A wire for pulling burning ships off the pier.

Ваш ответ:

A wire for securing the Fire Tug alongside a burning ship.
26

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.
27

What does this signal hoist mean?

Ваш ответ правильный:

I require immediate assistance.
28

Ships vary considerably in design and underwater shape, but does the ship’s trim ever have any influence on its steering abilities?

Ваш ответ правильный:

Yes, the ship often steers better if trimmed by the stern.
29

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

Ваш ответ правильный:

The Master, with consideration of the advice of the pilot.
30

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.
31

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

Ваш ответ правильный:

The vessel’s bow is pushed away from the bank.
32

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

Ваш ответ правильный:

That the chart datum is also WGS84 or there are corrections.
33

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..
34

Which option best completes the following statement? An operator using ECDIS, will notice an out of position navigation buoy because:

Ваш ответ правильный:

The radar return and ENC buoy symbol will not coincide.
35

What can be simply rigged to assist a survival craft in keeping alongside own vessel?

Ваш ответ правильный:

A painter rigged fore and aft against the vessel’s side.
36

You are on a power-driven vessel underway in open water. You sight these lights on the port bow, on a steady bearing. The distance is closing. What are you looking at and what action will you take in compliance with the International Regulations for Preventing Collision at Sea.

Ваш ответ правильный:

This is a power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres and the tow, both being restricted in their ability to manoeuvre, seen from the starboard side. Under rule 18, I am required to keep clear and will take appropriate avoiding action.
37

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

Ваш ответ правильный:

I am in distress and require immediate assistance.
38

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?

Ваш ответ правильный:

At about 1/6 of the ship’s length from the bow.
39

The rudder is hard over with the engine at full ahead. Will the turning effect of the rudder be changed if the engine is stopped?

Ваш ответ правильный:

Yes, the turning force will be dramatically reduced when the engine is stopped.
40

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

Ваш ответ правильный:

All over the world.
41

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.
42

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.
43

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.
44

A ship is navigating in the Caribbean in August when it receives the warning of a Hurricane. To determine the centre of the storm the Master uses “Buys Ballot’s Law” and faces the wind. On what side of the Master would the low pressure area be located?

Ваш ответ правильный:

On the right side.
45

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

Ваш ответ правильный:

When the Master informs the Officer of the Watch that he is taking over the “con”.
46

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?

Ваш ответ правильный:

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.
47

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?

Ваш ответ правильный:

That the vessel is operating astern propulsion.
48

You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?

Ваш ответ правильный:

It comes from a vessel engaged in pilotage duties and it is making way through the water.
49

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

Ваш ответ правильный:

Inform the Master.
50

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.
51

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.
52

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.
53

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?

Правильный ответ:

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

Ваш ответ:

A vessel aground, more than 100 metres in length. The additional signal indicates which side the clear water lies on.
54

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?

Правильный ответ:

It exceeds 200 metres.

Ваш ответ:

It is less than 200 metres.
55

What are the required data inputs into most gyro compasses to reduce any possible compass error?

Ваш ответ правильный:

Latitude and Speed.
56

What does this flag mean?

Ваш ответ правильный:

I have a diver down; keep well clear at slow speed.
57

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.
58

What letter is represented by this flag and what is it’s meaning when displayed by a vessel in port?

Правильный ответ:

P – All persons should report on board as the vessel is about to proceed to sea.

Ваш ответ:

W – All persons should report onboard as the vessel is about to proceed to sea.
59

What possible reason could there be for the identification mark associated with a Racon not being visible on the radar screen?

Ваш ответ правильный:

All of the suggested answers.
60

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?

Ваш ответ правильный:

That the vessel is operating astern propulsion.
61

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.

Ваш ответ:

The ship will probably start to change heading to port and stern speed will increase.
62

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

Правильный ответ:

A ship moving forwards with the rudder amidships, will continue in a straight line.

Ваш ответ:

A ship when swinging, will continue to swing even after the rudder is returned to amidships.
63

What actions should be taken by the Officer of the Watch if the ship’s steering system totally fails?

Ваш ответ правильный:

All of the suggested answers.
64

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.
65

What is the probable cause of an error in position of the ship obtained from the GPS system?

Ваш ответ правильный:

Incorrect height of the antenna.
66

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

Ваш ответ правильный:

The vessel will gradually swing to port and the speed will slowly reduce.
67

What is the situation of this vessel?

Ваш ответ правильный:

This vessel is not under command, but is making way through the water.
68

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

Ваш ответ правильный:

Attempt to establish contact with the distressed vessel.
69

What are the limits of a passage or voyage plan?

Ваш ответ правильный:

From berth to berth.
70

How can a new officer, just boarding a ship, ensure that he knows the location and operation of all navigational and safety equipment and take account of the operating limitations of such equipment?

Ваш ответ правильный:

By asking other officers and practicing with the use of the equipment.
71

You are on a power-driven vessel underway in open water. You sight these lights on the port bow, on a steady bearing. The distance is closing. What are you looking at and what action will you take in compliance with the International Regulations for Preventing Collision at Sea?

Ваш ответ правильный:

This is a power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres and the tow, both being restricted in their ability to manoeuvre, seen from the starboard side. Under rule 18, I am required to keep clear and will take appropriate avoiding action.
72

The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?

Ваш ответ правильный:

Sound the General Alarm and stop engines.
73

What is the purpose of a sea anchor?

Ваш ответ правильный:

To keep the lifeboat steady against the sea/wind.
74

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.
75

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

Ваш ответ правильный:

Listen for a distress message on the appropriate radio frequency for five minutes.
76

After passage planning with ECDIS, how should the route be checked for safety?

Ваш ответ правильный:

Using the ECDIS route checker and by visually sighting all along it.
77

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

Ваш ответ правильный:

An “Isobar” is a line joining places of equal pressure.
78

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.

Ваш ответ правильный:

The target is on the same course and speed as own ship.
79

When plotting a position, where should the Officer of the Watch select as the ships position, when three gyro compass bearings intercept as a triangle (Cocked Hat) and not as a single point?

Ваш ответ правильный:

At the point nearest to the danger, if any.
80

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

Ваш ответ правильный:

All of the suggested answers.
Пройти тест еще разСсылка на результаты