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Головна Онлайн-тести CES Oil tanker MASTER / Ch-Officer Test online CES 5.1 for MASTER / Ch-Officer, Oil tanker vessel
Онлайн-тестування: Test online CES 5.1 for MASTER / Ch-Officer, Oil tanker vessel
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Тест складається із випадкових питань з обраної теми.
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A class "D" fire involves what type of material?
Liquids
Gases
Metals
Wood or other carbonaceous material
The necessary elements to create fire are
heat and chain reaction
combustible, air, flames and gas
combustible, comburent, flames and chain reaction
combustible, comburent, heat and chain reaction
Sanitary-, ballast-, bilge- or general service pumps may be accepted as fire pumps provided: (SOLAS II-2/4.3.2)
They are ready for use as fire pump at any time
They can be started from a position outside the engine room
They are not normally used for pumping oil
They are fitted with automatic start connected to the fire alarm
Apart from red, what other colour is frequently used for a dry powder extinguisher?
Green
Black
Blue
Yellow
The temperature control system of the crankshaft bearings of the main engine indicates high temperature. What would be the correct action to be taken with regard to opening and checking of the crankcase?
Stop the engine immediately and keep the luboil pump running for at least 20 minutes before opening the crankcase?
Stop the engine and open crankcase down immediately for inspection.
Stop the engine immediately, stop the luboil pump, and inspect the crankcase after 5 minutes.
Reduce the RPM to a minimum and open the crankcase doors carefully.
What fixed fire fighting medium do we normally use in the engine room, pump room and other spaces?
The fixed fire fighting medium in engine room, pump room etc is water
The fixed fire fighting medium in engine room, pump room etc is foam
The fixed fire fighting medium in engine room, pump room etc. is Carbon Dioxide CO2, Halon or foam
The fixed fire fighting medium in engine room, pump room etc is chemical powder
*May an engine room be only protected by a fixed low expansion foam fire-extinguishing system?
Yes, if the "engine room" is considered as a machinery space of category A
Yes
It depends on the type of vessel
No
What is the most common fixed fire fighting extinguishing system fitted in an engine room?
A chemical powder system
An halogenated hydrocarbon system
A pressure water-spraying system
A carbon dioxide (CO2) system
Where should the placard you are shown be located, according to U.S. Coast Guard regulations ? (Title 33-Navigation and Navigable waters, § 155.440 )
In a conspicuous place at the bilge and ballast pump control station
In the wheelhouse
In a conspicuous place in each machinery space
Both in a conspicuous place in each machinery space and in a conspicuous place at the bilge and ballast pump control station
A faint is a brief loss of consciousness of no more than momentary duration caused by a temporary reduction in the flow of blood to the brain.How to prevent anyone from fainting?
Tell the person to sit down in a sitting position breathing normally.
Tell the person to sit down and lean forward with the head between the knees taking deep breaths.
Try to keep the person in an upstanding position.
If standing in a crowd, flex the leg muscles and toes to aid circulation.
Give the meaning of the following symbol
Portable foam applicator
Portable fire extinguisher
Powder installation
Foam installation
Rule 12 of the International Collision Regulations prescribes the action to be taken by a sailing vessel when meeting another sailing vessel. This depends on the direction of the wind relative to each vessel. In the situation shown here, which sailing vessel (A or B) must keep out of the way of the other?
Sailing vessel B must keep out of the way of sailing vessel A.
Sailing vessel A must keep out of the way of sailing vessel B.
The upwind sailing vessel must keep out of the way of the downwind sailing vessel.
Both sailing vessels are required to take avoiding action.
What shape of hull would you say a course unstable ship would have?
A ship with a length to beam ratio greater than 5.5
A ship with a length to beam ratio less than 5.5
A ship with a long, slim hull.
A ship with a length to beam ratio less than 7
Your vessel is moving in Panama Canal waters. When must a crew man capable of and ready to operate the anchors be on the forecastle?
When passing through the Gatun Lake
When passing through Gaillard cut
When anchoring in Gatun Lake only
When a Panama Canal pilot is onboard
Who is authorized to prescribe use of locomotives and canal deck-hands during transit of the Panama Canal?
The master
The Cristobal or Balboa harbour masters respectively
The pilot
The Canal authorities
What is understood by the term "Balanced Rudder"?
A rudder with equal rudder area forward and aft of the turning axis, the turning axis being at the geometrical centre of the rudder area
A rudder with part of the rudder area forward of the turning axis, therefore reducing the load on the steering motor.
A rudder which is operated by two steering motors providing equal amounts of thrust to the rudder
A rudder with an additional flap attached the training edge to improve the rudder efficiency
According to the rule of GMDSS, channel 70 is used for:
distress and urgency traffic
distress traffic
alerting
Don't know
When you join a new ship, how are you informed about safety rules, alarm instructions and your own duties in case of an emergency ?
by muster lists exhibited in conspicuous places
by folder distributed to each crewmember
by oral instructions by the Captain
by alarm instructions in all crew cabins
The steps of the embarkation ladder used must be proportioned as it follows:
length = 280 mm, breadth = 85 mm, depth = 10 mm
length = 480 mm, breadth = 115 mm, depth = 25 mm
length = 580 mm, breadth = 165 mm, depth = 30 mm
length = 380 mm, breadth = 145 mm, depth = 20 mm
In a distress situation, how many times or for how long should the emergency alarm signal be sounded?
3 times
3 minutes
Until all crew members and passengers have reported to their respective muster stations
Until the signal "risk is over" or the order "abandon ship" is given
Which one of the listed items has to be included in a distress message?
Last port of call.
Destination.
Weather in immediate vincinity.
Identification of the ship.
*The biggest lifeboats on board ships may accommodate
up to 200 persons
up to 50 persons
up to 100 persons
up to 150 persons
Which item among those below is included in the normal equipment of every liferaft ?
one boat-hook
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one searchlight which can work continuously for not less than 3 hours
watertight receptacles containing 1.5l of fresh water for each person (may be partially replaced by a desalting apparatus)
Which item among those below is included in the normal equipment of every lifeboat ?
an EPIRB
one life-jacket for each person
two efficient painters
sea-charts and navigating equipment
Which one of the listed requirements regarding rescue boat equipment do not correspond to present regulations? The normal equipment of every rescue boat shall include:
a first-aid outfit in a watertight case
an efficient radar reflector
immersion suits for the number of persons the boat is permitted to accommodate
two buoyant rescue quoits attached to not less than 30m of line
*Give the meaning of the following symbol
Lower rescue boat to water
Lower lifeboat to water
Lower liferaft to water
Embarkation ladder to the rescue boat
Give the meaning of the following symbol
Rocket parachute flares
Survival craft distress pyrotechnic signals
Radar transponder
Survival craft portable radio
*At least how often shall rescue boats be launched with their assigned crew and manoeuvred in the water?
Every two weeks
Every week
Every three months
Every six months
*Which one of the following items has to be included in an abandon ship drill?
Starting and operating radio life-saving appliances
Manoeuvring the lifeboat in the water
instruction in the use of radio life-saving appliances
Launching and recovery of a survival craft
*How often are "abandon ship" drills required to be held on cargo vessels?
Once every week
Once every year
Once every month
Once every 6 months
If an inhibitor is added to an oil cargo, which of the following is a summary list of items to be included on its accompanying certificate?
Inhibitor name; amount added; date added; period of efficiency; precautions if voyage length exceeds that period; eventual temperature limitation.
Inhibitor class; amount added; date of expiry; minimum period of optimum efficiency; precautions to be taken when added; minimum temperature requirement.
Inhibitor class; percentage blended; date added; maximum period of efficiency and applicable temperature limits; maximum storage period on board; contact number of manufacturer.
Inhibitor name; percentage applied; date of expiry; precautions to be taken on voyage and interval of application; maximum temperature at which continuously effective.
Which cell voltage is required to trickle charge a lead acid battery?
1.2 V
2.5 V
2.0 V
2.15 V
What is meant by a two stage compressor ?
Two stage air compressors have the capabillity to compress air in stage one and dry the air in stage two.
The compressed air goes back from stage two and into stage one to get extra pressure before it goes into the starting air bottles.
The two stage air compressor take some air from the surraundings to stage one and compress and some air from the surraundings to stage two and compress.
Air from stage one goes through discharge valves in stage one and through suction valves into stage two. In stage two it will be compressed to high pressure air.
According to SIGTTO publications, what is a typical accuracy for LNG pressure measurement equipment?
+/- 1,00 bar (which will apply within the MARVS of the tank)
+/- 0,0005 bar (which will apply within the MARVS of the tank)
+/- 0,0015 bar (which will apply within the MARVS of the tank)
+/- 0,50 bar (which will apply within the MARVS of the tank)
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
Why is nitrogen used for the inerting of hold spaces and interbarrier spaces on LNG carriers?
Because of the high oxygen content of combustion generated inert gas.
Because the carbon dioxide in combustion generated inert gas would freeze when in close proximity to the cargo.
Because of the high humidity in combustion generated inert gas.
Because of the high temperature of combustion generated inert gas.
What is the purpose of the "forcing vaporizer"?
To provide gas for burning in the boiler.
For initial heating in the insulating spaces.
Discharge cargo without vapour return from shore.
To displace inert gas from cargo tanks.
Air bags (dunnage bags) are widely used for securing palletised refrigerated cargoes. In the case of a fruit cargo, which of the given options should the user be aware of?
Over inflation can crush and damage the soft tissue of the fruit.
Over inflation can distort the pallet stack.
Over inflation can distort the air bag.
Over inflation can damage the ship's structure including the insulation.
This circuit symbol is an amplifier system and its frequency response diagram. Which control function is the system performing?
Proportional + derivate (PD)
Integral (I)
Proportional + integral (PI)
Proportional + integral + derivate (PID)
An earth fault exists on the blue line of a 100 A bilge pump circuit. A second earth fault occurs on the yellow line of a 10 A ventilation fan circuit. Both systems are supplied from the ship's 440V supply. The likely outcome is that:
An open circuit occurs between earth fault and both motors trip out
A short circuit occurs between earth faults and the ventilation fan fuse blows
Both motors trip out on overload
A short circuit occurs between earth fault and the bilge pump fuse blows
The ship is en route. When may passengers visit the bridge?
When the weather is nice and the sea is calm
Whenever they want
Passengers are not allowed to visit the bridge while the ship is en route
During daytime if the traffic is smooth
What are the main elements in a damage control plan?
Instructions and procedures for reporting damage to the Company
Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.
Arrangements for correction of list due to flooding within 15 minutes
A damage control plan is the same as an emergency plan
Which of the following is considered as a possible source of ingress of seawater into the cargo holds?
Topside tank drop valves
Cargo hold bilges
Shell plating
Hatch covers and coamings
In a closed loop control system the error signal is derived from which of the following?
The tolerance of the feedback sensor
The process and the feeedback sensor
The demand and the feedback signal
The process and the demand
What do the letters "TPC" stand for?
Tonnes per Centimetre.
Tipping Centre.
Trim per Centimetre.
Tonnes per Centimetre Immersion.
What are the type of signal output is derived from a NiCr/Ni thermocouple?
mA.
Ohm.
mV.
Watt
What height of water above the inner bottom will activate the cargo hold high level alarm
Not more than 2.5m
Not more than 2.2m
Not more than 2.0m
Not more than 2.8m
What is important with regard to checking container lashings on deck?
The strength of lashing rods
The number and extent of lashings
The strength of twistlocks
The tightness of lashing rods and container locking arrangements
A routine inspection of a hold space on a liquefied gas carrier is necessary. Checks of the atmosphere indicate that there is only 19.5% oxygen content. Which of the following actions is recommended?
Postpone the inspection and continue ventilating until an oxygen reading of 21% is achieved.
Carry on with the inspection as normal since 19.5% oxygen content is sufficient for breathing.
Ensure all persons entering the space for the inspection wear self contained breathing apparatus.
Ensure the inspection is carried out quickly in case the oxygen content reduces any further.
Which types of compressors are used as cargo compressors onboard gas carriers?
One, two and three stage piston compressors.
One, two and three stage screw compressors.
Oil free screw and piston compressors.
Piston, screw and centrifugal type compressors.
The primary and secondary insulation spaces of each LNG cargo tank are provided with pressure relief valves. What is the normal set point of the relief valves for these spaces?
20 mbar.
15 mbar.
10 mbar.
5 mbar.
Bulk Coal cargoes may produce methane and carbon monoxide gas; what are the main features of these two gasses?
Methane and carbon monoxide gasses are flammable and lighter than air
Methane and carbon monoxide gasses are non-flammable and lighter than air
Methane and carbon monoxide gasses are non flammable but toxic
Methane and carbon monoxide are heavier than air and flammable
What is a likely cause of fishmeal fires?
A moisture content less than 6%
Ineffective antioxidant at the time of production
Too much antioxidant at the time of production
Fat content less than 10%
Which of these tasks are performed as part of the SSA?
Implement measures to address weaknesses in ship security.
Train shipboard personnel in their security duties.
Assess the likelihood and potential consequences of security incidents.
Assign security duties to ship personnel.
With reference to the installation of pressure gauges for steam systems. Complete the following statement from the options given. To protect a bourdon tube type pressure gauge which is to be fitted to a steam line it should ….
..be fitted directly to the steam pipe.
..be fitted to the steam pipe using a flexible hose.
..be fitted with a siphon loop between it and the steam pipe.
..have its casing filled with water.
What action should be taken by the watchkeeping engineer if the running machinery is operating at slightly high temperature but everything else appears ok?
It should be stopped and serviced immediately
It should be left running until the fault develops further.
It should be shutdown temporarily, allowed to cool down and then be restarted.
It should be brought to the attention of the Chief Engineer so that remedial action can be decided upon.
What is the structure to which fiberglass yachts are secured once loaded on board?
Flatrack
Yacht Bay
Pallet
The cradle
What is important when checking cargo lashings on a General Cargo Vessel?
The number and extent of lashings
The tightness of all lashings
The strength of lashing materials
The type of lashing materials
Which of the following would normally only be found in cargo holds which can also be used for ballast on a Bulk Carrier?
Permanently fitted dunnage
Light reflective paint coatings and fixed lighting systems
Bilges systems fitted with two way valves
Sacrificial anodes and water resistant expoxy paint coatings
What do Tonnes per Centimeter immersion (TPC), Moment to Change Trim by one Centimeter (MCTC) and Longitudinal Centre of Floatation (LCF) have in common?
They vary with changes in displacement
They vary with small angles of heel
They vary with changes in the shape of the waterplane
They remain unaffected by changes in displacement
When is track line search normally used?
When the position of the search object is accurate
When a vessel or aircraft has disappeared without a trace
When the position of the search object is not accurate
When a direct communication between the search object and the search facility is available
During cargo tank gassing up and cooling down operations on an LNG carrier which of the given options, regarding temperature, needs to be observed?
Always control the vaporisers so that the temperature of methane vapour is lower than existing tank atmosphere temperature.
Never allow temperature of the insulation to fall below the safe minimum temperature.
Always control the outlet temperature of methane from the vaporiser.
Always control the temperature in the shore supply line.
What is the absolute maximum size for a cargo tanks on oil tankers?
Maximum 40,000 cubic metres.
Maximum 35,000 cubic metres.
Maximum 20,000 cubic metres.
Maximum 30,000 cubic metres.
What is an IED?
An explosive
A homemade bomb
A type of gun
An incendiary device
Why are many machinery components onboard ship now tightened using cylindrical jacks and hydraulic oil pressure rather than more traditional methods such as, for example, the use of torque wrenches?
Hydraulic tightening avoids the risk of unwanted bending stresses when compared to other methods.
Hydraulic tightening of fastenings is always more accurate than any other method.
It is easier to slacken off component fastenings that have been tightened hydraulically when maintenance is due.
It is possible to get the component fastenings tighter using hydraulic equipment than by using other methods.
During a ship to ship cargo transfer operation it is required that:
The main engine be on 1 hour notice.
None of the listed alternatives need be maintained.
An efficient engine room watch with the main engine on standby be maintained.
The main engine be on 1/2 hour notice, and no watch need be maintained in the Engine room.
When the temperature of the air increases with height it is known as a "Temperature Inversion" and may influence the performance of some instruments on the ship. What should the bridge Officer of the Watch be prepared to happen?
The GPS may give errors of position because of interference of incoming signals from the satellites
The bearings obtained from the Directional Finder (DF) will not be as accurate as normal
Abnormal ranges of VHF RT and Second Trace Returns on the radar
The radar will be show abnormal sea clutter as the pulse is trapped by the inversion.
Why should one not rely wholly on a loading computer?
Because loading computers do not indicate actual sea going conditions
Because loading computers do not warn of high centres of gravity when high cube containers are carried
Because some instruments do not warn of heavy-over-light containers so long as overall stack weights are within limits
Because loading computers do not indicate the positions of high cube containers
The electric motor on one of your centrifugal pumps has for a period of time gradually been running at lower and lower Amp-load. The pump is still supplying water, but the pressure is reduced. Which of the below alternatives is probably the reason?
The pump is running at lower speed due to short circuit in the electric motor.
Inner diameter of impeller is bigger due to cavitations, or outer diameter reduced by erosion.
The pump has been more effective because the suction strainer has been removed.
The pump has suction from many places at the same time.
What precautions should be taken, in addition to shutting the main air start valve, if work is to be carried out inside the main diesel engine crankcase?
Engage the turning gear and close every valve on the starting air receivers.
Engage the turning gear and put a notice at each engine control position.
Engage the turning gear, stop the starting air compressors and drain the air receivers.
Keep a man posted in the control room to stop anyone who tries to start the engine.
In terms of electrical units, what is Hz the abbreviation for?
Frequency in Direct Current (DC)
Frequency in Cycles per second
Revolution per minute
Measure for Resistance
With the exception of some citrus fruits and bananas, fruit is usually pre-cooled to the required carriage temperature prior to loading on a reefer vessel. In order to protect the cold chain, and to maintain the temperature of the fruit, a minimum exposure time to ambient conditions during loading is necessary. What action should the deck officers take during loading to achieve this minimum exposure time?
Close the hatches and apply cooling to the cargo already loaded during any break in cargo operations that exceed 30 minutes.
Request that the stevedores work faster to minimise loading time.
Close the hatches for any break in cargo operations that exceed 60 minutes.
Close the hatches and apply cooling to the cargo already loaded during any overnight break in cargo operations.
An auxiliary engine is fitted with a duplex type lubricating oil filter. The in-use element requires changing. What procedure should be used to fit the new element?
With the engine running, position the changeover cock so that both filters are in use to reduce the pressure before.
With the engine running, change over to the other filter after priming it and replace the dirty element after checking there is no pressure on dirty filter housing.
With the engine running, shut off the filter inlet and quickly fit the new element.
The engine must be stopped to fit a clean filter element..
If the strength of the wind is related to the pressure gradient and the space between the isobars, which of the following statements is correct?
The closer the isobars are together the stronger will be the predicted wind.
The pressure gradient is a measurement of the distance between the high and the low pressures and is not associated with isobars.
Strong winds are found in areas where the isobars are not close together
The wind force is related to the difference in pressures and blows directly between the centres of high and the low pressure
What arrangement may be installed in passenger ships to reduce unsymmetrical flooding in damaged condition?
Ballast trimming system
Cross flooding arrangement
Separate trim tanks
Self acting ballast trimming arrangement
What is the main fixed fire-fighting system on a car deck?
CO2
Dry powder
Water sprinkling
Halon
You enter a high voltage switchroom and smell rotten eggs. What may this indicate?
Problems with a vacuum circuit breaker
Arcing at badly coupled bus bars
Problems with a gas (SF6) circuit breaker
Burning of insulation
A road trailer is marked as follows: SWL 70t; Tare wt. 6t. What is the gross weight of the trailer when carrying it maximum payload?
76 tons
420 tons
70 tons
63 tons
A tachometer for a diesel engine is reading erratically. The tachometer is of the non-contact type using magnetic proximity switches to generate the signal. What is the most likely cause of this problem?
The shaft magnet has fallen off.
The proximity switch has dirt on the outside casing.
The shaft magnet has become demagnetised.
The proximity switch is loose on its mounting.
The Code of Safe Practice for Cargo Stowage and Securing was prepared to give guidance in which of the following cases.
Guidance for Port State Control Officers when carrying out ship inspections.
Guidance on securing of cargoes in hazardous ocean areas.
Preparation and content of the Cargo Securing Manual.
Ship specific guidance relating to securing of deck cargoes.
What are the duties of the watch-keeping engineer?
The duties of the watch-keeping engineer are to keep constant surveillance of machinery and auxiliary systems and to inspection the steering gear at least once a watch
The duties of the watch-keeping engineer are to maintain the required ship's speed
The duties of the watch-keeping engineer are to ensure that the machinery spaces are properly manned
The duties of the watch-keeping engineer are to keep constant surveillance of the steering gear and hydraulic system
A temperature control system is exhibiting hysteresis. Checks on all of the system components show that they are functioning correctly. Which of the changes/modifications given in the options is most likely to correct this problem?
Fit a valve positioner to the system.
Fit a new temperature sensor with a narrower temperature range.
Increase the pressure of the air supply to the controller.
Slacken off the control valve gland.
Which push-button valve A, B or C must be pushed (operated) in order to obtain movement of the pneumatic cylinder S?
A
B
None
C
What can be done to effectively reduce the rate of ice accretion on containers during loaded sea passage?
Increase speed
Heave to
Reduce speed
Have the crew remove the ice
What is the benefit of prismatic Type "B" tanks?
The tanks do not form part of the ship's hull structure.
The ship's hull may act as the secondary barrier.
The tanks are completely self-supporting.
The benefit of maximising ship hull volumetric efficiency.
Sometimes an early warning of failure in High Voltage switchboards may be an unpleasant smell. If the switchboard uses gas circuit breakers, which of the following may indicate a potential problem?
Chlorine.
Gas oil.
Rotten fish.
Rotten eggs.
Where shall you be able to activate the ship security alert system on board passenger ships?
From the navigation bridge and in at least one other location
Captain's- and Chief Officer's office
Navigation bridge
Captain's office
When loading a static accumulator oil, which of the following is a standard precaution applied to eliminate the risk of explosion through electrostatic charge in the tank?
No metallic sampling devices over 2 litres capacity should be permitted on the cargo deck at any time, unless thoroughly cleaned beforehand with soapy water
No metallic devices, such as those used for gauging and sampling, should be introduced into the tank during loading and for 30 minutes after completion of loading
No rubber containers over 1 litre capacity, such as those used for sampling, should be introduced into the tank between completion of loading and for 10 minutes after that time
No plastic, or plastic coated devices, such as those used for sampling or gauging, should be introduced into the tank unless bonded, at any time
What is the most suitable type of packing for a shaft gland of a pump used for seawater duties?
Greasy cotton packing.
Mica impregnated cotton packing.
PTFE rope packing.
Lead covered hemp packing.
What is meant by settling in slop handling?
The cargo has to settle in the slop tanks.
Separation of wax from the oil.
Separation of water and oil.
Sediment separation.
Даний онлайн-тест складається з 90 випадкових питань із тестів CES 5.1 з обраної вами тематики.