Тест состоит из случайных вопросов по выбранной теме.
What kind of fuel will originate a class A fire?
a solid (cardboard or wood…)
a liquid (gasoline or petrol…)
a gas, not under pressure
In order to extinguish a flammable liquid of the same kind as alcohol, we can use:
You are leading a team fighting an interior fire. If you see the colour of the smoke changing from dark black to grey, what is the most probable reason for that change?
the team has started to ventilate
the percentage of oxygen is getting below 15%
The team is applying water and the temperature is decreasing
the temperature inside is increasing
*Where would you find out which fire sections of the ship are enclosed by "A" or "B" class divisional bulkheading?
On the general arrangement plan
All the mentioned alternatives
On the fire control plans
Apart from red, what other colour is frequently used for a dry powder extinguisher?
*How long should it take to release at least two thirds of the charge of CO2 that is provided for a ro-ro cargo space protected with a fixed carbon dioxide fire-extinguishing system?
*What is the inherent danger in the use of halon to extinguish an extensive fire?
Depletion of the ozone layer?
Development of toxic gases?
Depletion of oxygen in the air?
Development of explosive gases?
Which one of the listed requirements regarding VHF radiotelephone installations do not correspond to present regulations?
Controls for the channels required for navigational safety shall be immediately available on the navigating bridge, convenient to the conning position
Facilities should be available to permit radio communication from the wings of the bridge
Cargo ships of less than 500 tons gross shall have the batteries located in the upper part of the ship
As far as practicable, the antenna shall have unobstructed view in all directions
A MMSI number consist of:
the call sign followed by 4 digits
When with a radio telex-connection with a coast-station ga+? appear on the screen:
The command der+? Must be given
A command as dirtlx…+ can be given
It means “good afternoon, over”
Via Inmarsat-C a message is sent to an Inmarsat-C mailbox with a positive delivery notification (PDN). The groundstation will:
send a PDN, if the message has arrived in the mailbox
send no PDN’s with messages intended for the mailbox
send a PDN, as soon as the message is collected from the mailbox
On board an accident happened. Urgent radio-medical advice is needed. We choose the category:
The legal type VHF-antenna has a length of:
With the squelch mode on the VHF:
another channel is chosen
undesirable noise is suppressed
Which of the following is a coast station MMSI ?
A Safety Message is used when circumstances are discovered which may constitute a danger to shipping. What is the telegraphy and telephony urgency message like?
F F F (Telegraphy) / RESCUE-RESCUE (Telephony)
X X X (Telegraphy) / PAN-PAN (Telephony)
T T T (Telegraphy) / SECURITE (Telephony)
S O S (Telegraphy) / MAYDAY (Telephony)
What is the most important way to contain small oil-spills from cargo operations on the ship?
Have ample room in the drip-tray by the manifold
Have Sandpiper pumps rigged on the aft part of the tank deck
Have sawdust located by the manifold
Have all scuppers plugged
What is a "Search and Rescue Region" (SRR)?
An area of limited dimension in which rescue vessels are permanently stationed
An area of defined dimension where an international organization is responsible for search and rescue operations
An area of defined dimensions within which search and rescue services are provided
An area where a search and rescue operation is ongoing
The vessel has weighed the anchor and is heading for sea. The anchor is to be stowed in position. How?
The anchor to be as far inside hawsepipe as possible and secured by cable stopper
The anchor to be all way in the hawsepipe and secured by the brake
The anchor to be all way in the hawsepipe and secured by brake on winch and wire/chain stopper
The anchor to be all way in the hawsepipe and secured by wire lashings only
You are to release the towing wire with forerunner. You have 3 men with you to do the work. How would you safely carry this out?
With manpower. Two men picking up slack and one man lifts off the eye and let go simultaneously
Use the winch. Forerunner and wire stopper to pick up the slack and stop the wire. One man operating each. Make the forerunner fast on the bit, releasing the eye of wire and the stopper, lower the wire easy by forerunner
Use the winch and forerunner to pick up slack. One man to release the eye, lowering the wire down by use of winch
After heaving on the wire by a forerunner, cut the forerunner and so let the wire free
The ship has a right-handed propeller and is swinging to starboard when the engines are slow ahead and the rudder is to starboard. The engines are stopped and the rate of swing rapidly slows down. How could the swing to starboard be maintained without the ship making much headway.
Astern on the engines will allow Transverse Thrust to continue the swing
By applying the rudder hard over to starboard and going ahead on the engines.
The only effective method is by using the bow thruster to push the bow to starboard.
Transverse Thrust will reduce the swing and therefore a kick ahead is necessary with full starboard helm applied.
Your vessel is moving in Panama Canal waters. When must the master be on the bridge?
When entering or leaving a lock, passing through Gaillard cut, berthing & unberthing, anchoring or heaving anchor.
When his qualified representative is present
When entering or leaving a lock only
When should operational checks on navigation equipment be done?
When errors are indicated
Regularly, when preparing for sea and entering port
The nationality of a ship can be determined by means of:
What is understood by assigned frequncy?
the upper side band (USB)
frequency of the carrier wave
the frequency actually used by transmitter and receiver
During duplex mode you are able to:
Talk to two stations simultaneously
Interrupt after releasing the PTT-switch
The usual range of a VHF radio-set from ship to ship at sea is:
Define the class of emission H3E :
Radiotelex and DSC - Phase modulation
Radiotelephony - Single sideband full carrier
Radiotelephony - Phase modulation
Radiotelephony - Single sideband suppressed carrier
Which item among those below is included in the normal equipment of every lifeboat ?
two buoyant smoke signals
sea-charts and navigating equipment
one life-jacket for each person
*How much water per person is provided in a liferaft not equipped with a desalting apparatus?
On board cargo ships an abandon ship drill must be performed for all the crew
*Which one of the following items has to be included in an abandon ship drill?
Manoeuvring the lifeboat in the water
operation of davits used for launching liferafts
Starting and operating radio life-saving appliances
Launching and recovery of a survival craft
Which one of the listed requirements regarding abandon ship drills do not correspond to present regulations? (SOLAS III/18.3.5 - 18.3.7)
on ships on short international voyages, each lifeboat shall be launched and manouvered in the water at least every six months
Different lifeboats shall, as far as practicable, be lowered at successive drills
Each lifeboat shall be launched with its assigned crew, and manouvered in the water at least once every three months during an abandon ship drill
Drills shall, as far as practicable, be conducted as there were an actual emergency
The Training Manual shall contain instructions and information on the life-saving appliances and the best method of survival. The training manual shall contain detailed explanations of crew duties in relation to emergency situations. Which of the following tasks or duties shall be included in the manual according to present regulations?
The use of oars and other propulsion equipment for survival crafts.
Best use of the survival craft facilities in order to survive.
The use of navigational equipment for survival crafts.
The use of on-board communication equipment.
If making a new pilot ladder onboard, which of the following ropes would you use in its construction as side ropes on which the steps are fastened?
What is the purpose of an expansion valve in a refrigeration system circuit?
To control the cooling water temperature through the condenser.
To control the cargo hold temperature.
To control the flow rate of liquid refrigerant to the evaporator.
To control the suction pressure at the compressor.
In which cases shall side scuttles in passenger ships be so constructed that they cannot be opened without the consent of the master of the ship?
Where the sills of the side scuttles are below the margin line
Where the sills are mounted below the bulkhead deck
Where the sills of the side scuttles are less than 500 mm above the deepest load line
Where the height of the side scuttles go through more than two decks
In a purifier assuming the separating temperature is correct, what is probably wrong if processed oil contains water
Back pressure is too high
Gravity disc is too small. Flow rate is too high
Gravity disc is too small
Gravity disc is too large
On the figure there are four possible definitions of the term "STARBOARD BOW" given. Which one is the correct one?
Starboard bow is given by D on the figure
Starboard bow is given by C on the figure
Starboard bow is given by B on the figure
Starboard bow is given by A on the figure
What action would you take if the performance of a plate type heat exchanger was falling off even though flow rates and pressures of the primary and secondary fluids were normal?
Iincrease the flow of both fluids.
Clean the heat exchanger.
Add some more plates to the exchanger.
Increase the pressure of both fluids.
Generators work on the principle of electromagnetic induction. The internal e.m.f. generated in the phase windings of an a.c. generator is controlled by:
The internal volt drop and the residual magnetism.
The internal volt drop and the load current.
The diesel speed and excitation current.
The diesel speed, magnetising force and load current.
Insulating materials used on liquefied gas carriers are required to have certain properties including a good vapour diffusion resistance. Which of the insulating materials has the highest vapour diffusion resistance?
During inspection of a cylinder liner for a large, slow speed diesel engine it is found to be worn in a cloverleaf pattern. The greatest points of wear are found to be in way of the cylinder lubricator holes. From the options given, what is the most likely cause of this type of wear pattern?
Excessive cooling of the cylinder liner at low load operation.
Fuel impingement on the liner due to faulty fuel injector nozzle.
Cylinder lubricant has too high an alkalinity for the sulphur content of the fuel.
Insufficient cylinder lubricating oil being supplied.
Does MARPOL apply to gas carriers?
To allow efficient pumping of aromatic Crude Oil cargoes, they are usually heated to reduce their viscosity. What is the ideal maximum viscosity that is normally achieved for this purpose?
Onboard training should be organised in such a way that:
It is an integral part of the overall training plan
Each crew member is trained individually
It does not contravene with the rest hours of the crew
For how long must you save the printouts from the ODME?
Until the end of the voyage.
What is the potential effect on a steam boiler of having calcium based compounds present in boiler water and proper water treatment is not carried out?
It will cause corrosion and scale deposits in the boiler..
It will form passive layers on the metal surfaces in the boiler..
It will reduce the TDS in the boiler..
No negative effects are likely.
A 6-Volt relay is to be used with a 12-Volt power supply. The relay requires a current of 0.1 Amp. What is the series resistance required.
Prior to its partial removal in a water scrubber, what is the approximate Sulphur Dioxide content of flue gas produced by the combustion of fuel oil?
What is the maximum stowage height for containers on deck of a General Cargo Vessel, if the vessel is not specifically designed for the carriage of containers?
The maximum height is two containers
There is no limit apart from point load limitations
The maximum height is one container
Containers must not be carried on deck
A ro-ro unit weighing 2mt is to be loaded athwartships and lashed by belts of SWL 0.6mt. How many lashing belts should be used to secure the unit?
What must be ensured at the commencement of cargo operations?
That the draught survey has been completed
That all fire dampers are closed
That all fire dampers are open
That CO2 gas lines to each cargo hold are clear
Some process control systems may several inputs and controlled variables. In this context what is meant by split-range?
Several controllers are connected to the same control-valve
Several control-valves are connected to the same controller
Several control-loops for the same range
Earlier cellular reefer vessels were constructed with a 'porthole system' for supplying refrigerated air via ducting to containers. Modern vessels are designed to supply only electrical power to integral containers. Select the main reason for this change in design to the vessels and containers from the options given.
A large amount of refrigerant gas was required to operate the 'porthole' system.
The introduction of more powerful diesel engines onto these vessels meant they had sufficient electrical capacity to supply the integral type containers.
Ducted containers had to be transhipped to their final destination after discharge and still required refrigeration for that part of the supply chain
The 'porthole' system design was extremely complex and construction costs were high.
What extra precautions should be taken by the officers and crew if some of the passengers are disabled, i.e. using wheelchair, cane, blind etc.?
All passengers that will require extra assistance, also in case of an emergency situation/ evacuation, must be registered in order to allocate crew to assist them if needed.
Locate them in large cabins to ease their stay.
Passenger with some form for disability must travel with accompany, and live in same cabin or next door.
They must be placed in cabins on the same level as the muster station.
On a RoRo vessel, what should you do if it is clear a RoRo cargo unit's content is not have properly secured
have the crew secure the content once the unit is in position
load the unit and let the duty officer know
Reject the unit and do not allow it to be loaded
Which of the 4 alternatives shows the symbol for a PNP transistor?
On capesize bulk carriers what problems are associated with welding of the corrugated bulkheads during construction?
Stress concentrations at the corners of the bulkheads
Cracking of cross-deck plating
A reduction in shear forces
Several areas of the bulkheads being 'out of tolerance'
What is the correct name of the part highlighted in the sketch?
The correct name of the part highlighted in the sketch is: Cylinder relief valve
The correct name of the part highlighted in the sketch is: Cylinder air start valve
The correct name of the part highlighted in the sketch is: Fuel injector
The correct name of the part highlighted in the sketch is: Cylinder lubricator
A steam generating tube in a boiler is found to be badly sagged but not ruptured. Select, from the options given, the most suitable action to be followed in order to operate the boiler.
Plug both ends of the tube and drill a hole in the body of the tube.
As long as the tube is not ruptured the boiler can be operated normally.
Plug both ends of the tube.
Heat the tube up with a gas torch and return it to its original shape and position.
The cold room temperature is almost at the cut out point in a vapour-compression refrigeration system. What should the refrigerant state be just after the evaporator if the system is correctly set up?
Slightly superheated low pressure gas.
Sub-cooled liquid at low pressure.
Wet vapour at high pressure.
The insulation resistance (IR) to earth of a new galley hot-plate is measured to be 30 Mohm. When three identical hot-plates are tested together their combined IR will be:
One cylinder of a diesel engine has to be cut out to allow continued operation of the engine. Which of the following options may be the cause of the problem?
Camshaft timing incorrect.
Gas side of turbocharger fouled.
What is the connection between ethylene gas and food?
Ethylene is the gas that develops as yeast dough bakes
Ethylene is the gas given off by most fruits and vegetables during the ripening process
Ethylene is the gas that develops as baking powder dough bakes
Ethylene is the gas that develops when meat and fish are stored for too long (bacterial decomposition)
How can the ship’s master prove that a vessel is British?
By showing survey certificates issued by Lloyds Register in London
By showing the ship-s register
By showing a Certificate of Equivalent Competency issued by the MCA
What governs the disposal of dry bulk cargo residues at sea?
The Code of Safe Practice for Solid Bulk Cargoes
By what formula is the displacement calculated? W = Displacement; L = length; B = Breadth; D = depth of vessel; Cb = Block Coefficient; Cw = Coefficient of waterplane; RD = relative density;
On a conventional reefer vessel the 'tween decks and lower hold are provided with scuppers leading into the hold bilges. The scuppers normally designed with a U-bend or non-return bend. Complete the following statement from the options given. "Prior to loading a cargo of hard frozen products the U-bend should be…
…filled with clean fresh water."
…filled with clean sea water."
How often shall the inert gas scrubber be flushed with water?
Before entering discharge port for inspection
The timing of the engine is delayed. The exhaust temperatures are high. How would you expect this to affect the turbocharger?
Higher air and gas temperature after turbocharger.
Surging of the turbocharger.
Decreased turbocharger revolutions.
Increased turbocharger revolutions.
On a Container vessel, where should containers containing marine pollutants be stowed?
In the foremost container bay on deck
Anywhere on deck at the extremity of a container stow
In the last container bay on deck
After completion of a cleaning job on some machinery components at sea, the engine watch rating is instructed to dispose of a small amount of dirty diesel oil which is left in a bucket. How should the dirty oil be disposed of.
Put it straight into the dirty oil tank for incineration at the next opportunity.
Take it on deck and throw it overboard.
Pour it into the diesel oil storage tank through the sounding pipe.
Pour it into the engine room bilge so that it can be pumped through the oily water separator.
On a Container vessel, what is the function of a twistlock?
To secure manually operated hatch covers?
To secure winches from unintentional running?
To secure/lash containers?
What precaution must be taken when discharging crepe rubber?
There should not be bales outside a sling adhering to bales inside it
Derricks must not be used to discharge this cargo
Bales must not be dragged into the hatch square from the wings
Each bale must be discharged independently
When considering instrumentation systems, what is a typical symptom of a fault with the span of an instrument?
100% output is accurate, but Zero-point is wrong
Zero-point is accurate, but 100% input is not giving 100% output
Zero-point and 100% are correct, but not at mid - range
What is Inert gas ?
It is a gas containing insufficient oxygen to support combustion of hydrocarbons
It is a gas containing only nitrogen
It is a gas containing less than 21 % by volume oxygen
It is a gas containing no oxygen
Does OPA90 apply to vessels engaged in carrying liquefied gas?
OPA90 applies only to oil tankers.
OPA90 applies only to non-American flag vessels.
Only if the vessel carry HC-products.
OPA90 applies to all ships.
What ingredient, made from durum wheat, is commonly used as an alternative to rice with north-African dishes?
What prevents hatch cover panels from lifting in a seaway on a General Cargo vessel?
The hatch compression bars
The hatch cover hydraulic system
The hatch cover cleats and cross-wedges
Which is the preferred state to have the main turbine in while shutdown for a short stay in port?
Left with autospin operating to give periodic turning.
Gland steam left on to keep the rotor and casing warm and with turning gear switched off but engaged to 'lock' the rotor in position.
Turning with the turning gear and gland steam on.
All steam shut off with turning gear switched off but engaged to 'lock' the rotor in position.
What is the definition of "Mole"?
A substance capable of causing canser.
A graphic method of representing the heat quantities contained in air.
The volume occupied by one molecular mass in grams.
The mass that is numerically equal to to the molecular mass.
A plate type heat exchanger in a central cooling system has seawater leaking around the edges of some of the titanium plates. After inspection and reassembly following the manufacturer's instructions the problem still exists. What action, from the options given, should be taken to rectify the problem?
Fit new gaskets to the each of the plates.
Keep tightening the plate stack until the leakage stops.
Reduce the pressure of the sea water.
Scrap the plates and replace with a new plate stack.
What does the term 'stoichiometric mixture' mean when used in relation to combustion of hydrocarbon fuels?
A ideal mixture of fuel and air in which all of the fuel in the mixture is consumed during combustion.
An ideal mixture of fuel and air in which all of the fuel in the mixture is consumed during combustion with a minimum of excess air.
An ideal mixture of fuel and air in which all of the fuel and oxygen in the mixture are consumed during combustion.
A ideal mixture of fuel and air in which all of the oxygen in the air in the mixture is consumed during combustion.
In which publication do we find information about the most common liquefied gases?
In ICS Tanker safety guide
In the vessels deck log book
In the International certificate of fitness
"Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations , are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment". What is this a definition of?
A liquid cargo that is prohibited for carriage in vessels other than type 1 chemical tanker, as defined in the INC Code.
A category "Y" substance as identified in the revised MARPOL Annex II.
A category "X" substance as identified in the revised MARPOL Annex II.
An NLS as defined in ISGOTT revision V.
What name is given to the pickled, fermented vegetable condiment that accompanies almost every Korean dish?
Most perishable cargoes are presented for shipment pre-cooled to the correct carriage temperature. If the cargo is not pre-cooled or has warmed up due to the cold chain being broken it can result in increased metabolic rates. Which of the given options would be the most difficult to deal with if such a situation occurred during a sea passage?
The water produced by the cargo.
The heat produced by the cargo.
The carbon dioxide produced by the cargo.
The trace gases produced by the cargo.
On a Container vessel, under which IMDG Class is fishmeal normally carried when treated with anti-oxidant?
Class 5.1 - Oxidizing substance
Class 4.2 - Flammable solid
Class 9 - Miscellaneous dangerous substances and articles
Class 4.1 - Flammable solid
What is the purpose of introducing inert gas into cargo tanks?
To make the tank safe for entry.
To reduce the static electricity potential in the tank.
To create a non-explosive atmosphere in the tank.
To prevent evaporation of the cargo.