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Tests en ligne : Test online CES 5.1 for Ch-Eng / 2nd-Eng
Test en ligne
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Le test consiste en des questions aléatoires sur un sujet sélectionné.
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What is a polar (liquid)?
A liquid that mixes with water
A liquid that conducts electricity
A liquid that emits flammable vapour
A liquid that doesn't mix with water
*A fault in the fire detection and fire alarm systems will be indicated:
By fully automatic separate test boards where any faulty condition is initiated by audible and visual signals
By audible and visual signals at the control panel, distinct from the fire signal
By the general alarm
By the fire signal
*May liquid fuel, lubricating oil or other flammable oils be carried in a forepeak tank?
No
Yes
It depends on the flash point
It depends on the type of trade of the vessel
*According to the SOLAS definition, what is an incombustible material?
A material that neither burns nor gives out flames when it is exposed to the standard fire test for 30 minutes
A material that neither burns nor emits flammable fumes in such a quantity as to experience ignition, when the temperature rises to 750 ?C
A material that is made out of steel or equivalent material
A material that neither burns nor gives out flames when it is exposed to the standard fire test for 1 hour
*Class "C" bulkheads are bulkheads constructed of approved non-combustible materials:
that can withstand the standard fire test for 45 minutes
that can withstand the standard fire test for 30 minutes
that need not meet any of the requirements relative to smoke and flame nor limitations relative to temperature rise
that can withstand the standard fire test for 15 minutes
What is the minimum number of independently driven fire pumps that must be provided on general cargo ships of 1000 gross tonnage and upwards?
4
1
2
3
What are the three diameters of fire hoses most commonly found on ships?
10, 50 or 85 mm
25, 45, or 70 mm
17, 43 or 74 mm
50 or 100 mm
The analyses of the smoke produced by a fire, may give an interpretation of that fire. Which are the factors we should take into account?
Opacity, amount and colour
Colour only
There is no possible interpretation of a fire according to the smoke
Amount and opacity only
Three methods of fire protection regarding internal divisional bulkheading may be adopted in accommodation and service spaces in cargo ships. Which of the given methods do not correspond to present rules? (SOLAS II-2/42.5)
Fitting of a fixed fire-detection and alarm system in all spaces where fire might be expected to originate. No accommodation space bounded by an "A" or "B" class division to exceed 500 m?
Construction of all internal bulkheads of non-combustible class "B" or "C" divisions
Construction of all internal bulkheads of class "A" divisions
Fitting of an automatic sprinkler, fire-detection and alarm system for the detection and extinction of fire in all spaces in which fire might be expected to originate
Instructions for "Preparation for welding or hot work in cargo tanks" is laid down by the Norwegian Maritime Directorate. Which of the following requirements regarding welding or hot work corresponds to these instructions?
The tank shall have been mechanically vented for at least two hours before it is entered for inspection or work.
If the ventilation has been stopped for more than 30 minutes, new gas measurement shall be carried out before the tank is reentered.
The tank shall be mechanically ventilated as long as there is people in it.
If the mechanical ventilation is stopped, the tank shall be left within 5 minutes.
Regular ‘updating’ of a vessel’s position in an Inmarsat-C installation is among others things important:
To guarantee reception of NAVTEX-reports in areas where normal NAVTEX-facilities are not available
To guarantee reception of NAVTEX-reports
To guarantee assistance in emergency
To restrict NAVARAE-reports
The category of a DSC-call determines is:
how the rest of the call is to be composed
Don't know
the degree of priority
for whom the message is destined
What is the status of the rules of the SOLAS convention?
Mandatory.
Should be consulted when the vessel is in distress.
Supplementary to classification rules.
Must be regarded as guidelines.
What is the purpose of a Medico Message?
Giving a regular statement of the health of the vessel's crew.
Medico is the certificate which permit the Master to be doctor onboard.
Call an hospital for professional medical assistance by radio when needed.
Calling the health department in the next port of call and ask for free radio practice.
Your vessel has been involved in a collision, which has resulted in a heavy oil leakage. Who should be called to handle pollution claims and damages?
Flag state representative.
The Classification Society's representative.
The Leading Hull Underwriter's nearest Average Agent.
The P & I Club's nearest representative.
How many annexes do we find in MARPOL 73/78 and what is the content of annex 1?
We find 4 annexes in MARPOL 73/78 and annex 1 regulations for the prevention of pollution by garbage
We find 5 annexes in MARPOL 73/78 and annex 1 is the regulations for the prevention of pollution by sewage
We find 1 annexes in MARPOL 73/78 and annex 1regulations for the prevention of pollution by chemicals.
We find 5 annexes in MARPOL 73/78 and annex 1 is the regulations for the prevention of pollution by oil
The watertight integrity of a vessel must be intact, when?
In open waters only?
Can be relaxed during spells of fine weather?
When manoeuvring?
Can be relaxed in inshore waters?
Where shall shoreside fire-fighting personnel find necessary information to control a fire on board a cargo ship in an emergency situation?
Through the nearest Maritime Rescue Co-ordination Centre, who will get them from the ship's owner
In the fire control plans or booklet that must be posted in a prominently marked localisation on the navigating bridge
The captain of the ship is the only person that may give such information
In the fire control plans or booklet that must be stored in a watertight prominently marked container outside the deck house
You are Sen.Off.Deck on vessel "A" and your cargo is iron ore. The vessel is in narrow waters and you have been in a collision with vessel "B" causing your vessel to take in water. How will you act to save the vessel and the cargo?
Call main office for help
Navigate the vessel on ground as soon as possible
Call tug boats for help
Try to discharge the incoming water
Your ship is going full ahead as you start to slow down. Where is the position of the "pivot point" now? No wind, current.
The "pivot point" will move to the stern
Same position as when the ship is on full ahead
It will move aft as the ship slows down
It will move to the side of the center line
You are approaching shallow water with an Under Keel Clearance of 15%. What speed should you have when entering, and when should you slow down?
About 6-7 knots, slow down 30 minutes before entering
Reduce to slow or less in due time before entering
About 10 knots, slow down 15 minutes before entering
Maintain normal sea-speed, no need to slow down
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 degrees and own ship has a vector as shown. What is the vector mode selected on the Arpa?
Relative vectors, ground stabilised
True vectors
Relative vectors.
Relative vectors, sea stabilised
Give the meaning of the following symbole:
lifebuoy with light and smoke
lifebuoy with line
lifebuoy with light
life buoy with hand flare
What is the minimum number of immersion suits that are required to be provided for each open lifeboat under SOLAS rules?
6
3
Nil
One per person
Which one of the listed requirements regarding inflatable liferafts corresponds to present regulations? Every liferaft shall be so constructed that:
in the event of capsizing it will automatically attain a position providing an above water escape
have at least two entrances
it-s canopy has viewing ports in all directions
be prevented from pressure exceeding twice the working pressure, either by relief valves or by limited gas supply
Which item among those below is included in the normal equipment of every liferaft ?
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
three tin-openers and a pair of scissors
one boat-hook
one searchlight which can work continuously for not less than 3 hours
Which item among those below is included in the normal equipment of every lifeboat ?
sea-charts and navigating equipment
one life-jacket for each person
an EPIRB
a buoyant bailer and two buckets
*Which among the following list is required for lifeboat equipment according to present regulations ?
be secured in the lifeboat (except boat-hooks) by lashings, storage in lockers, compartments, brackets or similar arrangement
be made of fire-retardant material and stored in buoyant containers
be made of buoyant material or stored in buoyant containers
be made of fire-retardant material
What will you bring in a lifeboat if the ship is abondoned?
As much biscuit and canned food as possible.
Warm clothes, blankets and lifevests.
All pets that will most likely not be able to enter the boat by themselves.
All valuables like money, jewelry etc.
What colour flare is used to signal a safe landing place for small boats ?
Blue
Green
Yellow
White
HEL-H is the abbreviation of a heavy helicopter radius of action for rescue purposes. What do you think the radius and evacuating capacity of the helicopter is?
500 nm and capacity for evacuating more than 25 persons.
100 nm and capacity for evacuating more than 10 persons.
200 nm and capacity for evacuating more then 15 persons.
150 nm and capacity for evacuating more than 12 persons.
The Training Manual shall contain instructions and information on the life-saving appliances and the best method of survival. Which of following detailed explanations of crew duties in relation to emergency situations shall be contained therein?
Correct donning of fire protective clothing
The use of oars and sails for survival crafts
The method of release from launching appliances
The use of navigational equipment for survival crafts
*Which of following items shall be included in an abandon ship drill?
summoning of passengers and crew to muster stations with the alarm required
Checking the lifeboat provisions and supplies
Checking passenger's immersion suits
Checking the distress signal rockets and other distress signals
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 ?
Figure 1
Figure 4
Figure 3
Figure 2
What is the correct definition of: - a mooring line?
A line for a block.
A line for the ancher.
A loop in a rope.
A thick rope to tie up the ship.
A moderate level of stress provides which useful function in an emergency?
To slow down the thought processes to ensure a thorough assessment of the threat
To slow down the heart rate to conserve energy
To immobilize the individual until he has decided upon the best course of action
To prepare for peak performance that will improve the chances of survival
If a vessel is rolling heavily in a seaway and has negative GM and a small Angle of Loll, describe how the vessel will roll.
Roll unevenly flopping over between the Angle of Loll on each side.
Roll evenly either side of the upright position.
Roll evenly each side of the Angle of Loll.
Roll between the Angle of Loll on each side.
What is the punishment for any shipmaster who in distress or other danger abandons the ship without this being necessary?
Shall be liable to imprisonment for a term not exceeding three years.
Shall be liable to fines or imprisonment for a term not exceeding six months.
Shall be liable to imprisonment for a term not exceeding one year.
Shall be liable to imprisonment for a term not exceeding two years.
In which of the following areas of the holds of a bulk carrier is cargo residue unlikely to be concealed?
Recesses below manhole covers
Upper sections of ship's frames
Bilges
Bulkhead corrugations
What diminishes the proper functioning of twistlocks?
Vertical accelerations
Continued action of longitudinal forces
Heavy rolling
Continued use with over height containers
Substances, materials and articles shall be stowed as indicated in the Dangerous Goods List of the IMDG Code, in accordance with a series of stowage categories. How are those categories designated?.
10 categories, numbered 1-10.
5 categories, labelled A-E.
Three categories, numbered I, ii and iii.
10 categories, lattered A-K (excluding I).
Why is it important to keep the condensate pH value within the correct range when operating steam boilers?
To prevent corrosion in the feed system.
To minimise oxygen content in the feed waters.
To minimise dissolved gases in the feed water.
To prevent sludge forming in the feed tank.
What action would you take if confirmed boiler water test results showed that the pH of the water in the boiler was below 7?
Blow the boiler and top up again with untreated feed water.
Retest the water after increasing the treatment chemical dosage.
Nothing, this is an acceptable value for the pH of boiler water.
Retest the water after decreasing the treatment chemical dosage.
On a RoRo vessel, what standing instruction should be given to protect the Ramps when loading ro-ro units?
Damaged units should be rejected for loading
All ro-ro units must be thoroughly checked for damage prior to the loading ramp
Units whose weights exceed the ramp load density/SWL must not be loaded
Sounding pipes in the engine room are normally fitted with deadweight cocks and screw caps. Which of the following statements is correct?
Caps and cocks should be closed at all times, except when sounding tanks, to prevent ingress of water or oil into the engine room in case of tank bottom damage or overflow.
Deadweight cocks should be fastened in the open position to save time when sounding the tanks.
It does not matter where the cocks/caps are unless the tank is in use.
Caps should be placed on top of sounding pipes to keep the engine room tidy.
When checking the zero point on a combustible gas indicator that is to be used to detect hydrocarbon gases in an empty cargo tank which method should be used from the options given?
Pass oxygen gas through the sample chamber
Pass fresh air through the sample chamber.
Pass carbon monoxide gas through the sample chamber.
Pass methane gas through the sample chamber.
You are testing the atmosphere in a cargo tank on an oil tanker, for the purpose of approving it as safe it for crew members to enter at the end of tank cleaning operations. According to the industry standard guidelines (ISGOTT), what measurements must be obtained before this permission is granted?
8% oxygen by volume and 0% hydrocarbon vapour concentration
21% oxygen by volume and less than 1% LFL hydrocarbon vapour concentration.
Minimum 17% oxygen by volume and not more than 1% LFL hydrocarbon vapour concentration.
21% oxygen by volume and less than 1% UFL hydrocarbon vapour concentration.
After cooking, at what minimum temperature must rice be maintained during service?
37.8 degrees Celsius.
63 degrees Celsius.
93 degrees Celsius.
Between 10 and 12 degrees Celsius.
Which type of cargo pump works by the cargo being drawn into the pump at high speed and being thown outwards against the pump casing by rotating impellers?
Centrifugal.
Positive displacement.
Reciprocating.
Self-priming.
What is the most likely cause of the clean oil outlet pressure being higher than normal when operating a centrifuge as a fuel oil separator?
Drive clutch slipping.
Valve in the outlet line incorrectly positioned.
Broken water seal.
High fuel oil temperature.
Which regulations cover packaging materials consisting of wooden elements?
The Code of Safe Practice for Cargo Stowage (CSS) Code
The International Maritime Dangerous goods (IMDG) Code
International Standards for Phytosanitary Measures (ISPM) Code
The United Nations Convention on Law of the Sea (UNCLOS)
Where would the Official number be “carved” on the ship?
On the main engine
On the main mast
On the main beam
On the propeller shaft
This is a typical emitter follower. What is the main benefit obtained by use of an emitter follower?
The collector can be connected to as high voltage as 10 V DC
The V out is always equivalent to the V in
The input impedance is made much larger than the output impedance
The input impedance is made much smaller than the output impedance
What should you ensure prior to closing hatch covers when preparing to sail on a General Cargo vessel?
That all track ways are clear of obstructions
The vessel is upright
That cargo hold bilges are empty
That cargoes have been stowed according to the stowage plan
When refitting the bolts into a flange on a steam line how should the bolts be prepared so that they can be easily removed next time maintenance is required?
Coat the threads in graphite based grease.
Fit the bolts dry with a spring washer.
Apply thread tape to the bolt threads.
Coat the threads in general purpose grease.
Why should a container with a damaged corner post not be loaded?
Because during discharge the ship could be held responsible for the damage
Because its strength is weakened
Because it will not fit properly into a container stack
Because the cargo inside might be damaged
In a PID controller we have possibility to change the setting of the Proportional band (P), the Reset time (I) and the Rate time (D). Please indicate which curve shows the typical response to change in input, if the setting of the reset time is too fast.
Figure 4.
Figure 3.
Figure 2.
Figure 1.
What is the first line of defence against ingress of water into a bulk carrier?
Pipe outlets
The shell plating
Machinery spaces
Hatch covers
The use of steam driven ejectors for ventilation of cargo tanks having flammable vapours in them is not recommended now-a-days due to:
Steam at high velocities may generate static electricity which might cause incentive sparks?
It being not a very effective system for tank ventilation?
It is rather expensive to waste steam?
It might cause burns to unwary personnel?
In a heat exchanger where seawater is used to cool fresh water, the seawater pressure should be maintained lower than the freshwater pressure to:
Minimize the load on the seawater pump
Eliminate scaling problems on seawater side
Reduce erosion
Prevent contamination if leaks are developed
Which of these statements is correct?
Under the Hague and Hague-Visby rules a shipowner must exercise due diligence to make the vessel seaworthy
Under the Hague rules there is an obligation to make the vessel seaworthy
A vessel may be seaworthy even though she may not be cargo worthy
On liner routes cargoes must always be lashed in a standard manner irrespective of season
There are a number of different designs of tanks used for the cargo containment systems for liquefied gas carriers including independent tanks. How many different types of independent tanks are there in the IMO Gas Codes?
There are three types of independent tanks; Spherical tanks, Membrane tanks and Prismatic tanks
There are three types of independent tanks, type A, B and C
There are two types of independent tanks; type 1 and 2
There is only one type of independent tanks; Spherical tanks
If you alter the field excitation voltage (or field current) of one alternator operating in parallel, this will cause change in that alternators:
None of the mentioned alternatives
Frequency
Active load (kW)
Reactive load (kVAR)
The buoyancy forces upwards act at what part of the hull?
All over the underwater volume.
Along the keel.
At the centre of gravity (G)
At the centre of buoyancy (B)
Total Base Number ( TBN ) is important as a measure of neutralizing ability against strong Acids. What will You do if this TBN base number is reduced to a low level?
Send one lub oil sample to new analysis.
Renew lub oil in the system.
Purify the oil system.
Nothing.
a
e
d
c
b
Which inert gas systems use only gases from the ship's main or auxiliary boilers?
The inert gas generator
Nitrogen generator
Combination - inert systems
The flue gas plant
What is the time limit for abandonment of passenger ships?
15 minutes from the time the abandon ship signal is given
There is no time limit
2 hours from the time the abandon ship signal is given
30 minutes from the time the abandon ship signal is given
A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?
Start with the control valve in manual and use the hand jack to gradually increase the temperature by throttling the steam flow before changing to pneumatic control.
Start the system up in manual mode and gradually increase the controller output signal until the temperature reaches the required value before changing over to automatic control.
Start the system up in automatic mode with normal set point but with the steam supply to the control valve manually throttled in.
Start the system up in automatic mode with normal set point so that the required temperature is achieved as quickly as possible.
Where are the maximum Shearing Forces likely to occur on an oil tanker?
At the mid-length of the ship
At the bulkhead between empty and full tanks
At the forward collision bulkhead
At the tank lids
When a submerged centrifugal cargo pump is being run at too high a speed during discharge of a viscous cargo, the pump may start racing, causing a heat build-up around the suction, possible localised solidification of the cargo and consequent damage to the pump. What term is applied to this problem?
Synthesis.
Cavitation.
Aggregation.
Gravitation.
What is the correct understanding of the term "Bottlescrew"?
A bottlescrew is the connection ring on the ships deck used to connect lashings and rigging
A bottlescrew is the threaded screw used to open large bottles
A bottlescrew is a metal threaded sleeve which adjusts the length and tension on rigging or stays
A bottlescrew is the special wire rope used to lash containers
What is the name of this unit?
A hydrostatic release unit
A liferaft release unit
An antistatic release unit
A slip hook
What name is given to the part of the discharging operation on an oil tanker when the last remaining contents of a tank or line are being pumped out?
Puddling
Purging
Lifting
Stripping
Refrigeration plants using ammonia as the primary coolant have been fitted to some reefer vessels. When designing such a ship which aspect, from the options given, would be the most important consideration?
The temperature range that the plant would be expected to operate at.
Crew safety.
Installing a suitable control system for the plant.
Availability of the gas.
It is necessary, prior to loading a refrigerated cargo on a conventional reefer vessel, to prove that the hold bilges are clear and that the bilge system is functioning correctly. Which of the cargo types given in the options would be expected to produce the most water during a voyage?
A cargo of fruit loaded at field temperature.
A cargo of fruit loaded pre-cooled.
A cargo of hard frozen perishable goods.
A cargo of chilled meat.
You will be at sea for 45 days with a crew of 30 men. How many tomatoes would you buy?
35 kg
60 kg
50 kg
70 kg
"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.
During bunker transfer operations, deck scuppers should be:
Plugged when required
Plugged to prevent spilled oil flowing overboard
Only fitted to the side of the vessel that bunkers are being loaded
Attended by crew to collect any spilled oil that approaches
Any person serving on board who without the permission of the shipmaster leaves the ship in distress or other danger while the master still on board shall be liable to??????
Imprisonment for a term not exceeding 12 months.
Fines or imprisonment for a term not exceeding 12 months.
Fines or imprisonment for a term not exceeding 6 months.
Fines.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
10% extra
50% extra
5% extra
25% extra
Most of the engine makers recommend to change the cylinder head gaskets each time a piston overhaul is carried out. Why?
To increase the consumption of parts so they can make more money
To be granted a proper sealing with a new gasket
To obtain a proper sealing and correct distance between piston and cover in TDC position
To avoid heat transfer to the cylinder head.
Low temperature corrosion can occur in both oil fired and exhaust/waste heat recovery boilers. Considering a fuel with same sulphur content, the air/fuel number,lamda, in a combustion process also indicates a relation to what temperature sulphuric acid condensates. What is the correct relation between air/fuel ratio and low temperature corrosion?
High air/fuel ratio rises the air speed and thereby lowers the pressure and temperature so sulphur acid condensates.
High air/fuel ratio does not contribute significant to change of condensation temperature.
High air/fuel ratio rises the condensation temperature, and thereby reducing the safe limits between normal operation and condensation temperature.
High air/fuel ratio lowers the boiler temperature causing the sulphur acid to condensate.
Which component does this graphical symbol illustrate?
Resistance temperature sensor
Triac
Thermocouple
Potentiometer
How often should greasing of pump bearings take place?
Every week.
As specified in the vessel' s Planned Maintenance System, (Ref. Makers Instruction).
Every day.
Every month.
A consequence of operating a centrifugal pump with the discharge valve closed would be:
Motor overload will open
Motor will overheat
Relief valve will open
Pump will overheat
When an evaporator is operated in extremely cold water you may need to throttle the seawater supply to:
Prevent the evaporator from cold shocking
Maintain the specified boiling temperature
Increase the evaporator distilling rate
Avoid flooding the evaporator shell
To get the best possible efficiency from evaporators, the superheat should be regulated to:
40 - 50 Degr.C.
25-30 Degr. C.
0- 1 Degr. C.
5 - 10 Degr. C.
What separation temperature do You recommend for heavy fuel?
50 - 70 Centigrades
40 - 50 Centigrades
70 - 90 Centigrades
98 Centigrades
What would you do if you after starting the separator discovered that the settling tank was full of water
It depends on the installation
Stop the separator and drain the water from the tank
Increase the flow through the separator
Use full separation capacity
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.