A bulk carrier is loading to complete on summer draught of 10,00 m when in salt water; the vessel is loading in river water; The dock water allowance is 80 mm; The maximum draught when loading is completed is:
Ваш ответ правильный:
10,08 metres.
2
On board a DSC-call is to be made in case of an OBS. Choose the category:
Ваш ответ правильный:
Routine.
3
What is the normal thickness of the primary barrier (membrane) on membrane containment type systems as used in LNG carriers?
Ваш ответ правильный:
0,7-1,5 mm.
4
Which of the following items shall be included in an “abandon ship”-drill?
Ваш ответ правильный:
Checking that passengers and crew are suitably dressed and lifejackets correctly donned.
5
In case of diesel driven fire pumps, for how long shall the fuel tank capacity allow the pump to be run at full capacity? (SOLAS II-2/4.3.3.2.3).
Ваш ответ правильный:
3 hours.
6
A coated tank holds 400 tons of sea water when filled. How many tons of liquid of liter weight 0,9300 will it hold when filled to 90 % capacity?
Ваш ответ правильный:
326,6 Mt.
7
What is the main responsibility of a bridge lookout at night?
Ваш ответ правильный:
Inform the bridge of any new lights when they appear over the horizon or any other items observed which may affect the ship.
8
If a seaman has to walk across a stow of cartons containing perishable foodstuffs what should he do to minimise the risk of damage to the contents? Select the most appropriate option from those given.
Ваш ответ правильный:
He should step on the comers of the cartons.
9
A section of seawater pipe has been removed for maintenance. When refitting the pipe after completing the work the bolt holes in the flanges are found to be misaligned. What procedure should be followed to finish the work?
Ваш ответ правильный:
Adjacent pipework should be slackened off to allow the pipe to be aligned. Any incorrectly positioned brackets should be adjusted after the pipe is refitted.
10
According to SOLAS Regulation all dedicated seawater ballast tanks on oil tankers shall have an efficient corrosion prevention system such as hard protective coatings or equivalent. With regard to coatings do SOLAS set any requirement to colour?
Ваш ответ правильный:
Preferably light colour.
11
In the type of fluorescent lamp system shown in the illustration, the role of the starter is to perform which of the following?
Ваш ответ правильный:
To pass current through the lamp heaters and then interrupt the inductive striking current.
12
What is understood by the term “take the helm”?
Ваш ответ правильный:
Take over the steering of the ship.
13
This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show changes in the voltage V (C) when the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?
Ваш ответ правильный:
Figure 1.
14
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12 H, in series. Calculate the equivalent total inductance L(S).
Ваш ответ правильный:
L(S) = 18 H.
15
Is it necessary to construct a passage plan (or voyage plan), for transiting a canal or river, when under pilot?
Ваш ответ правильный:
A passage plan is always required, irrespective of the length of the voyage, or if the ship is under pilot.
16
On some trades fruit cargoes may be subjected to “in-transit cold treatment” also known as cold treatment. From the options given which is the main purpose of this cold treatment?
Ваш ответ правильный:
To maintain a specified minimum temperature for a prescribed time period to kill off any fruit fly which may be present when loading the cargo.
17
According to the industry guidelines in the ISGOTT Guide and assuming terminal regulations do not require otherwise, what action should be taken to drain accumulated water from the deck during cargo handling operations in rainy conditions?
Ваш ответ правильный:
The accumulated water is to be drained periodically and the scupper plugs to be immediately closed once the water has been run off. Water containing oily residues is to be transferred to a slop tank or other suitable receptacle.
18
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.
19
During duplex mode you are able to:
Правильный ответ:
Interrupt.
Ваш ответ:
Interrupt after releasing the PTT-switch.
20
With two alternators operating in parallel at 75 % load capacity, one trips without any warning. What is the first action that should be taken?
Ваш ответ правильный:
Trip/stop all nonessential loads that are connected to the switchboard.
21
Which one of the listed requirements regarding fire protected lifeboats do not correspond to present regulations? Water spray systems shall:
Правильный ответ:
Have separate draining pumps of sufficient capacity.
Ваш ответ:
Protect the occupants through a continuous oil fire for a period of not less than 8 minutes.
22
During mooring operations which is the safe place to be in?
Ваш ответ правильный:
Outside the colored zone.
23
What do you understand by the term “Terminal Representative”?
Ваш ответ правильный:
A person appointed by a cargo terminal for operations conducted by that terminal with regard to a ship.
24
When lashing general cargoes why are short lashings preferred to long ones?
Ваш ответ правильный:
Because they are more easily tightened and held in tension.
25
Which is the “Fairlead”, in the figure?
Правильный ответ:
The Fairlead is indicated by C, in the figure.
Ваш ответ:
The Fairlead is indicated by B, in the figure.
26
Is the master under obligation to do a maritime inquiry if a crewmember suffered a considerably injury onboard and died after a week on a hospital ashore?
Ваш ответ правильный:
Yes, even if he/she did not die while onboard.
27
What nominal filling restriction exists under the IBC Code for a single tank on a type 3 chemical tanker? Not counting structural, capacity or cargo specific limitations.
Ваш ответ правильный:
There is no filling restriction for a type 3 chemical tanker.
28
If your vessel was to load sugar which of these situations would result in the cargo holds failing inspection?
Ваш ответ правильный:
Traces of insect infestation in the bilges.
29
During crude oil washing of No: 1C tank the duty deck officer reports that the oxygen reading in the tank is 9 %. What should you do?
Ваш ответ правильный:
Stop the washing process and not resume until the oxygen content in the tank below 8 %.
30
On a general cargo ship, where would the fire hydrants be located?
Ваш ответ правильный:
At such locations that at least two jets not emanating from the same hydrant may reach any part of the ship normally accessible to the crew while the ship is being navigated, one of these jets coming from a single length of hose (the other jet may come from two hoses joined).
31
A rocket parachute flare reaches an altitude of:
Ваш ответ правильный:
Not less than 180 m.
32
Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?
Ваш ответ правильный:
An increased number of air changes may be required when vehicles are being loaded or unloaded, or where flammable gases or liquids are stowed in closed ro-ro spaces.
33
What will you do if the heat transfer capacity is dropping, and we know that flow and heat energy corresponds to the specifications?
Ваш ответ правильный:
Use the “cleaning in place” arrangement to open the heat exchanger for visual inspection and manual cleaning.
34
On a RoRo vessel, when loading Double Stacked containers on Maffi Trailers how many twist locks should have used between 2 containers?
Ваш ответ правильный:
One on every corner, 4 in total.
35
Which type of compressors is used as cargo compressors onboard gas carriers?
Ваш ответ правильный:
Piston, screw and centrifugal type compressors.
36
What are the compressors fitted as part of the cargo system onboard LNG carriers normally used for?
Ваш ответ правильный:
Removing boil-off gas.
37
What colour flare is used to signal a highly dangerous landing place?
Ваш ответ правильный:
Red.
38
In which way may intake of poisonous material occur?
Ваш ответ правильный:
All mentioned.
39
To make a “call-request” one should:
Ваш ответ правильный:
Select the telex in on-line position.
40
What should you do if the temperature of Hydrogen Peroxide Solution 65 % carried is raising 2 °C per 5 hours and the temperature is above 40 °C?
Ваш ответ правильный:
To avoid uncontrolled decomposition the cargo should be discharged overboard.
41
At least how often shall rescue boats be launched with their assigned crew and manoeuvred in the water?
Ваш ответ правильный:
Every 3 months.
42
When there is doubt about the freshness of the atmosphere in enclosed or confined spaces, what actions should be taken?
Ваш ответ правильный:
Arrangements should be made for testing of the atmosphere to ensure maintenance of 21 % oxygen and a carbon monoxide content below 50 ppm in the atmosphere of the space.
43
Are there any restrictions for transit of the Suez canal?
Ваш ответ правильный:
The Suez Canal is a sea-level canal. There are beam and draft restrictions for very large vessels.
44
On the figure possible definitions of the term “HEIGHT” are given. Which one is the correct one?
Ваш ответ правильный:
Height is given by D on the figure.
45
What is the fog signal for a vessel which is engaged in towing?
Правильный ответ:
One long blast followed by two short blasts at intervals of not more than 2 minutes.
Ваш ответ:
Two prolonged blasts followed by one short blast at intervals of not more than 1 minute.
46
What is the main requirement of a lookout posted on the bridge?
Ваш ответ правильный:
Good eyesight and able to communicate with the OOW (officer on watch).
47
When will a ro-ro vessel pitch heavily?
Ваш ответ правильный:
When wave lengths are equal to the ship’s length.
48
What is the required pressure when testing parts of the oil transfer system (hoses, loading arms etc.) if the test is to satisfy US Coast Guard regulations?
Ваш ответ правильный:
Test pressure equal to 1,5 times the maximum allowable working pressure.
49
Which of the following is a chemical commonly added to cleaning substances used to clean galley areas?
Ваш ответ правильный:
Bleach.
50
In a smoke filled alleyway where will the cleanest air be found, and how should you proceed out?
Ваш ответ правильный:
Near to the deck, crawl out keeping your face as near to the deck as possible.
51
Which one of the following items has to be included in an abandon ship drill?
Правильный ответ:
Lowering of at least one lifeboat after any necessary preparation for launching.
Ваш ответ:
Launching and recovery of a survival craft.
52
Which is the “PANAMA LEAD”, in the figure?
Ваш ответ правильный:
The Panama Lead is indicated by C, in the figure.
53
Diodes are widely used in rectification, or the conversion of alternating current to direct current. The sinusoidal input voltage V (in) is applied to the circuit shown. Which of the output voltages is correct?
Ваш ответ правильный:
Figure 1.
54
The abbreviation “NPSH” is often seen in connection with the efficiency of cargo pumps on oil tankers. What does this abbreviation stand for?
Ваш ответ правильный:
Net Pressure Suction Head.
55
When carrying LNG cargoes it is useful to have information about its thermodynamic properties. What is a common source of information that can be used to obtain values for a wide range of these properties?
Ваш ответ правильный:
A Mollier chart.
56
Which class of emission is used for FEC NBDP transmissions?
Ваш ответ правильный:
F1B.
57
When will a hatch cover cross-joint wedge need replacement?
Ваш ответ правильный:
When the flat spring is missing.
58
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
Ваш ответ правильный:
The HV cable carriers a smaller current and therefore requires less copper.
59
When you are taking an “ullage” on a cargo tank on an oil tanker, what are you actually doing?
Ваш ответ правильный:
Measuring the distance from the surface of the cargo to the ullage reference point.
60
By reduced transmitting power is meant in VHF a power between:
Ваш ответ правильный:
0,5-1 watt.
61
1 GHz is equivalent to:
Ваш ответ правильный:
1 000 000 000 Hz.
62
Most fruit cargoes carried under refrigeration require introduction of fresh air into the cargo space to remove any excess carbon dioxide and ethylene produced by respiration of the cargo and sensors are fitted to detect these gases. Shipper’s instructions will often indicate “constant air change” as a requirement for a cargo. Why, even though this is a crude method for controlling the cargo space atmosphere, is this type of instruction given?
Ваш ответ правильный:
Some cargoes are very sensitive to ethylene levels and it may be difficult to accurately measure the low levels that would affect a cargo.
63
Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?
Ваш ответ правильный:
Start with suction valve throttled in to minimise risk of drawing liquid refrigerant into the compressor.
64
You are in an area of restricted visibility and hear this signal. It is repeated at two minute 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.
65
The frequency 121,5 MHz is used for:
Ваш ответ правильный:
SARSAT-COSPAS EPIRBS.
66
Which electronic component does this graphical symbol represent?
Ваш ответ правильный:
Transistor.
67
In which provision of the Act is the responsibility of the master for the observation of the provisions relating to supervision of maritime service stated?
Ваш ответ правильный:
In Section 6 of the Act.
68
You are inerting a cargo tank on an oil tanker, prior to gas-freeing for entry. What is the maximum permitted oxygen content in the inert gas main as required by SOLAS 1974?
Правильный ответ:
5 % by volume.
Ваш ответ:
8 % by volume.
69
Give the meaning of the following symbol:
Ваш ответ правильный:
Start water-spray.
70
You have loaded a cargo of n-Propyl Acetate to all tanks. They are each loaded to around 98 % capacity. You now have to clear the lines into the ship. What is the biggest risk associated with this operation?
Ваш ответ правильный:
Unless carefully controlled, too much disturbance will be generated in the tanks and product will be forced up the vent risers, resulting in an overflow.
71
What does wet washing mean?
Ваш ответ правильный:
The bottom washing starts whilst there is still a small amount of cargo in the tank.
72
There is requirement in MARPOL for the slop tank capacity of oil tankers. What is the requirement for SBT tankers?
Ваш ответ правильный:
2 % where segregated ballast tanks or dedicated clean ballast tanks are provided in accordance with MARPOL.
73
Why shall a duly qualified officer supervise any potential polluting operation?
Ваш ответ правильный:
To avoid pollution.
74
What is the purpose of adding inhibitor to the individual cargo?
Ваш ответ правильный:
To assure all oxygen is removed from cargo tank and avoid chemical reaction.
75
When 3 phase alternators are operating in parallel, it is very important that the reactive load is evenly shared so that the total alternator loads are evenly shared. If the total alternator load is the vector sum of active and reactive loads, which side of vector diagram (power triangle) shown represents the reactive load?
Ваш ответ правильный:
(Y).
76
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.
77
What is the minimum capacity of the portable tank of a portable foam applicator?
Ваш ответ правильный:
1 litre.
78
Indicate the correct name for the tool:
Ваш ответ правильный:
Water pump pliers.
79
Does the Health & Safety Executive (HSE) have authority in dealing with shipping matters?
Ваш ответ правильный:
The HSE has authority only where an interface exists between the ship and shore e. g. means of access regs. In a serious case, they would contact the local Marine Officer.
80
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.