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Online-Test: Test online CES 5.1 for Ch-Eng / 2nd-Eng
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*In which one of the following an oil, the flash point of which only needs to be over 43°C, may be used?
In the kitchen
In the main engine
In emergency generators
In inert gas generators
A class D fire involves what type of material?
Liquids
Wood or other carbonaceous material
Gases
Metals
Which of the following names is given to the basic types of foam as far as they are differentiated according to the way bubbles are obtained:
AFFF foams
Chemical foams
All answers are good
Polar foams
On an "Unattended Machinery Space" classed vessel, the high pressure fuel pipes are double pipes, or covered with steel shrouds, with drainage. What is the main purpose of this protection?
In case of a bursting pipe, to avoid oil spray hitting adjacent hot surfaces or coming into machinery air intakes
To prevent personnel from touching high temperature surfaces
To collect minor oil leakage
To protect the pipes against mechanical damage
Which one of the listed fire-extinguishing medium is most effective against an open oil fire?
Water.
Powder.
Foam.
Gas.
"A" Class divisions in ships are constructed so that they are capable of preventing the passage of smoke and flame to the end of a standard fire test held for how many minutes?
60 minutes
30 minutes.
45 minutes.
15 minutes
The first time you send a DSC distress alert via the HF-band, you prefer the?
8 MHz band
12 MHz band
16 MHz band
Don't know
The “sensitivity” button adjusts:
AF-Gain
RF-Gain
tuning
Don't know
In radio-traffic with a coast-station, a “personal call” means that one wishes:
to have a telephone conversation with a person whose name is known
to request a telephone alert call
Don't know
to have a telephone conversation for account of a requested shore subscriber
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 principal risk in this operation?
Unless lines are cleared working from aft towards forward, they will simply fill up again as other lines are cleared.
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.
Unless the shore personnel are cooperative, they may cease blowing before you have had a chance to clear each one of the ship's lines.
Unless carefully controlled, cargo will gravitate from one tank to another.
When cleaning cargo tanks with portable machines, how is the machine grounded?
The water jets impinging on the vessel-s structure form a pathway to ground.
Bonding wires are secured from the machine to a convenient location on deck.
The water supply hoses contain internal wires that act as conductors
The machines must maintain physical contact with the deck at the Butterworth opening.
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.
Shipboard Emergency Drills must be carried out at least (OPA-90)
Once a year
Once a week
Once a month
Once every six months
The passage of electrical current through the body may result in severe and sometimes fatal injuries. You are witness to man getting electric current through his body and is stuck to the dangerous area. It is impossible to switch off the current by any main switch. How to break the current safely?
Stand on dry insulating material and pull the person away with isolating material.
Call the electrician immediately.
Apply fish oil on your hands and cut the cords by the use of any metallic pliers.
Just take the casualty in your arms and pull the person away.
Give the meaning of the following symbol
Foam valve
B class fire door self closing
Closing appliance for exterior
A class fire door self closing
You are sailing in shallow water, with 15% Under Keel Clearance. With full RPM, what will your speed be compared to deep water?
Faster
Stay the same
Slower
The RPM will drop with 15% of full
How much time can be saved by use of weather routing?
2%
Impossible to say
4%
6%
Give the meaning of this symbol:
lifebuoy with line and smoke
lifebuoy with automatic sound signal
Llebuoy with light and smoke
lifebuoy with light and hand flare
Poster or signs shall be provided on or in the vicinity of survival craft and their launching controls. Which one of the following requirements has to be included ?
give information on survival craft capacity
give information on survival craft speed and seaworthiness
give an overview of location of all lifesaving appliances
give relevant instructions and warnings
*How much water per person is provided in a liferaft not equipped with a desalting apparatus?
3 litres
1litre
5 litres
1.5 litre
What colour flare is used to signal a safe landing place for small boats ?
Blue
Green
Yellow
White
*Which of the following detailed explanations should be mentioned in the Training Manual ?
The use of surface to air visual signals to be used by survivors
The method of launching from within the survival craft
The use of navigational equipment for survival crafts
The use of escape routes and other escape methods
When discussing the properties of an oil cargo, what is the "wax content"?
The percentage of wax, expressed as a percentage, remaining in an oil product after distillation.
The observed volume percentage of waxy deposits found in a cargo tank after discharge in relation to the total volume of cargo previously carried.
The amount of additive in an oil product, expressed in ppm, designed to inhibit solidification at lower temperatures.
The percentage of paraffinic wax by volume, based on a representative sample of the crude oil.
On the figure 4 possible definitions of the term "FAIRLEAD" are given. Which one is the correct one?
Fairlead is given by B on the figure
Fairlead is given by D on the figure
Fairlead is given by C on the figure
Fairlead is given by A on the figure
What is the most likely reason for vibration and noise at the suction side of a centrifugal pump when it is running?
Pump suction valve fully open.
Water hammer in the pump casing.
Fluid friction in the suction line.
Collapsing vapour bubbles due to cavitation.
Why do blunt knives cause accidents?
Because they will need to be held at a more shallow angle when cutting.
Because the blunt edge will contain grease particles.
Because they require more pressure to be used and are more likely to slip.
Because the handles are more likely to be loose.
How often should normal testing of the cooling water be done?
Once a month.
Every 2.nd week.
Every day.
Once a week.
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.
What is the purpose of a "part flow display system" installed on some oil tankers ?
The Part Flow System makes it possible to observe the discharge visually for oil content, even in darkness
The Part Flow System makes it possible to discharge dirty ballast below the water line on older tankers
The Part Flow System makes it possible to measure the oil content, even if the Oil Discharge Monitoring Equipment is not working
The Part Flow System makes it possible to observe the discharge visually for oil content, on older tankers with discharge below the waterline
On a RoRo vessel, which of the ships trading certificates details the type and location that dangerous goods are allowed to be stowed onboard
The Cargo Ship Safety construction certificate
Safety Equipment certificate
Certificate of compliance for the carriage of Dangerous goods
In a fresh water tank with a height of 5 meters we shall use a pressure transmitter for level measurement. The tank has a vent-pipe leading to deck 8 meters above the top of the tank. What pressure shall we use as a guidance when ordering the pressure transducer?
1,3 Bar.
2,0 Bar.
0,5 Bar.
0,8 Bar.
On a Container vessel, what are the limitations of Cargo Securing Manuals?
They are not always approved by a classification society
They are drafted whilst the ship is still under construction and need to be checked against the ship's 'as completed' condition in order to be fully reliable.
Some Cargo Securing Manuals cover a full range of sister ships
Cargo securing arrangements in the manuals may be unsuitable for heavy weather conditions
What does the term 'cold spotting' refer to in relation to LNG cargo carriage?
Using a sub cooled layer of LNG at the liquid surface to help minimise cargo losses.
Visually checking the inner hull during the loaded passage to detect leakage.
Using the low duty compressor to supply cold LNG to the secondary barrier.
Monitoring tank pressure carefully during loaded passage.
Does MARPOL apply to gas carriers?
Only Annex IV.
No.
Yes.
Only Annex V.
To avoid overbunkering and oil spill, it is very important that we keep a close monitoring of the bunkering progress, and this is done by sounding and calculations, the most reliable way is:
The remote gauge system will provide us with the necessary information
Take ullage soundings in the tanks from deck
Calculate time and flow, to find out how much oil is received
A combination of ullage soundings and readings from the remote gauges
What are the ideal conditions required to satisfactorily conduct an Inclining Experiment?
All derricks lowered and no moving items on deck and in store rooms
Moorings slack, head wind, minimum people on board
All of the suggested answers
Minimum ballast and bunkers on board and all tanks pressed up.
The Master arrives on the bridge obviously under the influence of alcohol and states he is taking over the "con" of the ship. What actions should the Officer of the Watch (OOW) take in this situation?
Tell the Master you do not think this is a good idea and retain control of the watch.
Watch the actions made by the Master and if not dangerous, wait until the Master becomes more capable to take control or leaves the bridge
Tell the Master you consider him incapable of taking over the responsibility of the watch and that he should retire to his cabin and sleep it off.
Attempt to diplomatically avoid taking any actions that would put the ship or crew into danger and call the Chief Officer for assistance.
During synchronising, the incoming generator should be running slightly "fast" compared to the busbar frequency.This is to ensure that the:
Incomer picks up as a generator
Incomers reverse power trip is tested
Incomer picks up as a motor
Most rapid synchronising action is achieved
On the figure 4 possible definitions of the term "BOW/STEM" are given. Which one is the correct one?
Bow/stem is given by B on the figure
Bow/stem is given by A on the figure
Bow/stem is given by D on the figure
Bow/stem is given by C on the figure
On a General Cargo ship which of the following statements is correct?
Cold rolled steel coils must never be loaded in rain
Cold rolled steel coils may be loaded in rusty condition
Cold rolled steel coils may be loaded in rain
Cold rolled steel coils are always shipped in stainless steel envelopes
By what name are the regulations which control the discharge of noxious substances and prevent pollution from ships known?
SOLAS
The International Marine Pollution Prevention Laws
ISGOTT
MARPOL
Many modern medium and high speed diesel engines operate at very high power ratings resulting in relatively high bearing loads. In order to accommodate these loads the bearings are required to have a high load carrying capacity. What kind of bearings are normally used for main and bottom end purposes to achieve this?
Thin steel shells with a thin white metal lining.
Thick white metal types with the white metal cast into the keeps to give extra fatigue strength.
Thin steel shells with a copper lead lining and a running in overlay.
Thin steel shells lined with aluminium tin alloys.
What is the function of the "scrubber" in the inert gas system on an oil tanker?
To prevent backflow of dangerous vapours to the machinery space.
To blend the flue gas and air and achieve the desired concentration levels for tank inerting.
To wash and warm the flue gas.
To quench, cool and clean the flue gas.
When checking the closed butt gap clearance of new piston rings prior to fitting onto the piston it is normal to try the rings in the liner so that the gap can be measured. From the options given select the best part of the liner to use to carry out these checks.
Near mid-height of the liner.
Near the bottom of the liner.
Near the top of the liner.
Just above the scavenge ports.
What is the principal ingredient in Risotto?
Pasta.
Seafood.
Rice.
Green vegetables.
Which statement is true?
Normal temperature of the lub oil after the cooler is approx. 45 C.
When the ME is running, the Fresh Water enters the engine at the top and leaves the engine at the bottom
Normal temperature of the oil after the cooler is approx. 65 C.
Minimum scavening air temperature is 60 C to avoid dewing in the scavening air cooler
What are flexitanks used for?
The carriage of liquid cargoes of a particular specific gravity
The carriage of liquid cargoes that do not have a Proper Shipping Name
The carriage of hazardous liquids, in bulk
The carriage of non-hazardous liquids, in bulk
When unloading a generator, it is necessary to gradually decrease the load in order to avoid:
Undue overcurrent
Undue overload on the switchboard.
Undue overspeeding.
Undue temperature rise.
What name is given to the process on an oil tanker, when inert gas is being blown into a cargo tank, to reduce the level of oxygen it contains?
Blowing.
Purging.
Venting.
Gas-freeing.
What is a hydraulic hand pump usually used for?
A hydraulic hand pump is usually used to slacken the windlass brake
A hydraulic hand pump is usually used in an emergency to open the hatch covers
A hydraulic hand pump is usually used to steer the ship from the Emergency position
A hydraulic hand pump is usually used to tighten G-nuts
The figures show a graphical symbol for a particular electronic component and a typical operating characteristic for the same. Which component?
Zener diode
Transistor
Tunnel diode
Thyristor
What are the three categories to which hazardous liquid chemicals are assigned under MARPOL Annex II?
I, II and III
A,B and C
X,Y and Z
Iia, IIb and Iic
Why is it important in a RoRo vessel to ensure that cargo is loaded in a uniform way
because it looks better and image is important
because it makes it harder to lash the cargo correctly if you don't
To prevent high sheer forces and bending moments on the vessel during the loading / discharge operations
When long-handled pans are in use on the range, how should the handles be positioned?
Long handled pans are prohibited at sea. Only those with small grip side handles can be used.
They should be turned outwards, so they are accessible at all times.
They should be turned inwards, so they are not accidentally caught by people passing by.
They should be wrapped with wet cloths and the pans positioned on the back hot plates, so that they will be safe from passers by but can be picked up at any time.
During inspection of a high pressure fuel pump for a medium speed diesel engine it is observed that the upper leading edge and the lower helical edge of the pump plunger have suffered from erosion damage. Select the correct action to take to remedy this from the options given.
Replace the complete pump with a new or reconditioned spare.
Renew the plunger and barrel insert as a pair.
Smooth away the damaged area with a grinder and polishing stone and refit it.
Renew only the plunger if the barrel appears undamaged.
Which of the following measurements will include a D/P transmitter in the control-loop
Oil mist
Smoke indication
Temperature
Pressure
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.
What is most important when preparing a cargo hold to receive containers?
Ensuring that stacking cones are correctly positioned
Removing all loose equipment
Sweeping the tank top
Checking for cracks in tank top plating in areas where stack loads are transmitted
On a General Cargo Vessel, what must be ensured when using ship's cargo gear in hot climates?
That the cargo gear register in up to date
That stevedores handle cargo gear in the proper manner
That all cargo gear is appropriately marked
That grease from wire falls does not fall onto cargoes being loaded or discharged
How often shall the inert gas scrubber be flushed with water?
Every hour
Before entering discharge port for inspection
After use
Once a year/18 months
At what temperature is it recommended that frozen meat should be stored?
-45 degrees Celsius.
Between -5 and -10 degrees Celsius.
-20 degrees Celsius.
0degrees Celsius.
What name is applied to foods that have been prepared according to Jewish law?
Roaster.
Israelish.
Mosher.
Kosher.
Which of the following options may be used as a brief summary of how to safely make high voltage equipment accessible?
Shed load, Earth (ground), disconnect, isolate
Disconect, isolate, earth (ground)
Shed load, isolate. Earth (ground)
Disconnect, earth (ground), isolate
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 Maximum Securing Load of new fibre ropes?
25% of the breaking strength
30% of the breaking strength
33% of the breaking strength
40% of the breaking strength
A system for continuous monitoring of the concentration of hydrocarbon gas shall be fitted in cargo pump-rooms. A continuous alarm shall be automatically effected when the hydrocarbon gas concentration reaches a pre-set level. What are the criteria for pre-setting the alarm level?
No higher than 10% of LEL.
No higher than 15% of LEL.
No higher than 5% of LEL.
No higher than 20% of LEL.
When carrying fishmeal without anti-oxidant which of the following stowage patterns is recommended under the IMDG Code?
The block stow with extensive internal channelling
The double strip stow with extensive athwartships channelling
The block stow with no internal channelling
The compact stow with limited channelling
How many separate means of escape from passengers and crew spaces should it be in each zone?
One
Two
Four
Three
In a single side skin bulk carrier of 155m in length constructed in 2000 and carrying cargo of density 1010 kg/cu.m., which cargo hold can withstand flooding?
The midships cargo hold
The aftermost cargo hold
Any cargo hold
The foremost cargo hold
When should a spreader be used for general cargo operations?
When the weight of a load needs to be evenly distributed by the lifting gear
When the length of a load is such that slinging it will create unacceptable bending moments
When the length of a load is such that slinging it will create sagging
When handling open-top containers
The recognised definition of High Voltage equipment is anything that operates at over which of the following levels?
440Volts ac or dc.
1000Volts ac or 1500Volts dc.
1000Volts ac or 750Volts dc.
33,000Volts ac or dc.
What does regulation 33 of chapter V of SOLAS require?
The owner or operator of an ocean-going vessel over 500 grt shall ensure that, at all times, it is equipped with all necessary equipment to effect a safe and effective maritime rescue and that the equipment is maintained in full working order and that personnel are adequately trained in its proper use.
The master of a ship at sea which is in a position to be able to provide assistance on receiving information from any source that persons are in distress at sea, is bound to proceed with all speed to their assistance, if possible informing them or the search and rescue service that the ship is doing so.
The master of a ship at sea shall, upon receipt of information pertaining to a person or persons in distress, determine whether his vessel might be of assistance in their rescue and shall, if so, communicate that decision to his owner or operator without delay.
A Rescue Coordination Centre, under the license and control of a contracting government shall, after due consultation with the owner or operator, have the right to requistion any vessel it deems appropriate to a search and rescue operation.
What should crew members not assigned to emergency teams, do?
Crew members not asigned to emergency teams should ensure the proper operation of the remote control equipment
Crew members not asigned to emergency teams should be ready to assist the engine-room emergency team
Crew members not asigned to emergency teams should be integrated in the emergency team
Crew members not asigned to emergency teams should prepare survival crafts and render assistance, where required
You are on a tug and are towing an unmanned barge. You are restricted in your ability to manoeuvre. The total length of the tow is 219 metres. What daylight signals are required by the International Regulations for Preventing Collisions at Sea?
A diamond shape, where it can best be seen, on the tug only. Three shapes shall also be displayed, being three balls in a vertical line.
Three shapes shall be displayed on the tug, where they can best be seen, in a vertical line, the upper and lower being balls and the middle one a cylinder. The signal flag "T" shall also be flown on the tug. A diamond shall be displayed aft on the tow.
Three shapes shall be displayed forward on the tug, in a vertical line, the upper and lower being balls and the middle one a diamond.
A diamond shape, where it can best be seen shall be displayed on the tug and the tow. Three shapes shall also be displayed in a vertical line, the upper and lower being balls and the middle one a diamond. Diamond shape
What must be done once the cargo holds of a General Cargo ship have been opened to discharge logs?
Carry out mechanical ventilation
Keep the holds open for as long as possible before allowing anyone to enter
Commence discharging immediately
Measure oxygen levels prior to allowing persons to enter the hold
On a container vessel why is it important not to exceed stack allowable weights?
The lashings can be overloaded
The GM can become excessive leading to high roll accelerations
Torsional effects on the hull
It can cause failure of the corner posts of the containers stowed at the bottom of the stack
Some IMDG Cargo is loaded on deck of a General Cargo vessel; what information must be available on the bridge after sailing?
There must be a risk assessment and cargo stowage plan
There must be a cargo plan and permit to work completed
There must be cargo plan, cargo manifest and emergency schedule information from IMDG Code
The IMDG Code must be available
A refrigeration plant is short cycling even though there is plenty of refrigerant in the system and all of the rooms are above temperature. From the options give select the one which is the most likely cause of the problem?
Low oil level in the sump causing the automatic low oil pressure cut out to operate.
Blocked filter drier causing the automatic low pressure cut out to operate.
Insufficient cooling water flow through the condenser causing the automatic high pressure cut out to operate.
Ice formation in the meat room evaporator coil causing the automatic low pressure cut out to operate.
What factors do you consider as important before mooring a vessel?
Use of proper Personal Protective Equipment
Use of proper Personal Protective Equipment, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures
Use of proper Personal Protective Equipment, Well maintained mooring equipment, Make sure the area is tidy and clean, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures, Effective communication
Use of proper Personal Protective Equipment and be aware of Snap-back Zone
How many two-way VHF radiotelephone apparatus shall be provided on board a ro-ro passenger ship of 500 gross tonnage and upwards?
3
2
It is required to have a fixed two-way VHF fitted in a survival craft
One for each survival craft
What name is given to the oriental cooking pan, with a small base and wide sloping sides, commonly used for "stir-fry" dishes?
Gok.
Wok.
Wack.
Wot.
Two reference points for pressure exist, absolute zero and atmospheric pressure. What do you call pressures measured relative to absolute zero?
Absolute pressure
Vacuum pressure
Pressure drop
Gauge pressure
How does low expansion foam act as an extinguishing agent when dealing with oil fires?
By cooling only
The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire.
By smothering and also providing some cooling
By smothering only
The circuit consists of two inductors, L(1) = 6 H and L(2) = 12H, connected in parallel. Calculate the equivalent L(S) of the two inductors.
L(S) = 18 H
L(S) = 1,5 H
L(S) = 4 H
L(S) = 0,667H
This is an electronic temperature controller. You have been asked to adjust the controllers integrating action. Which button on the front of the controller shall be utilized for this adjustment?
Pos. 8
Pos. 7
Pos. 6
Pos. 2
What is the difference between a PRESSURE SWITCH and a PRESSURE TRANSMITTER, if any?
The pressure switch gives out a digital signal dependent on pressure and temperature.The pressure transmitter converts a pressure signal to a digital signal.
There is no difference.
The pressure switch has contact(s) that will change between open and closed position.The pressure transmitter converts a pressure signal into an electric signal.
The pressure switch gives out an analogue signal depending on the switch setting.The pressure transmitter gives out a binary signal depending on the pressure.
The plate heat exchanger is separated for cleaning. What will You do if the plates is thick with scale or other organic material?
Change the plates.
Put the plates in water with qualified cleaning chemicals, and use soft brush, or high pressure cleaner with care.
Use wire- brush, metal scrapers etc. for cleaning of plates.
Use high-pressure cleaner with abrasives.
What will You do if the plate exchanger leaks after cleaning and is back in service. (The measurement A is tightened to minimum measurement.)
Close the valves.
Reduce the pressure.
Tighten more.
Dismantle the exchanger and check or renew the rubber packings.
Where is the best position of the oil/water interface in these figures?
Position B.
None of the shown positions.
Position A.
Position C.
Which items are important to get an optimal separation?
Correct flow, pressure and temperature (viscosity).
Low temperature and flow.
Max. flow and high temperature.
Max. flow and min. pressure.
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