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Maison Tests en ligne CES Chemical tanker Deck Support Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
Tests en ligne : Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel
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Le test consiste en des questions aléatoires sur un sujet sélectionné.
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Where would you find out which fire sections are enclosed by "A" or "B" class divisions on a ship?
On the capacity plan
On the general arrangement plan
All the mentioned alternatives
On the Ship's fire control plans
Why are you only allowed to load maximum 98% of the tank capacity?
It is company policy.
Danger to vessel stability and strength.
Due to temperature expansion.
Danger of overloading.
What is the purpose of the « SQUELCH » on a VHF transmitter/receiver?
" reduce the ""noise"" in the background"
Increase the range of the transmitter
increase the sound signal of the receiver
switch to another channel
*The person in charge of a lifeboat :
must check that the crew under his command are acquainted with their duties
must have a list of the survival craft crew
all of the above
must check that the second in command has also a list of the lifeboat crew
Which one of the listed requirements regarding life-saving appliances corresponds to present regulations?
All prescribed life-saving appliances shall be made of non-combustible or fire retardant material
All prescribed life-saving appliances shall have marking in red colour
All prescribed life-saving appliances shall be of such a colour that they are in contrast to the surrounding colour
All prescribed life-saving appliances shall be fitted with the manufacturers name and Logo
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?
Uncovered manila rope.
Polyester rope.
Polypropylene rope.
Nylon rope.
What must be checked before loading cargo in 'tween decks of a General Cargo Vessel?
The cargo stowed here must be for first discharge port only
The maximum allowed loading must be checked before commencing operations to avoid possible damage
These spaces can only be used for very light cargo
Only very heavy cargo units can be stowed here
Checking the lubricating oil sump level of the generators is one of the engine watch ratings regular duties on a particular vessel. During the check it is noticed that the oil level is unexpectedly below the minimum mark on the dip stick. What action should be taken?
The rating should fill the sump to above the operating level in case there is a leak and the oil level drops too low before the next check.
The rating should stop the generator immediately.
The rating should just fill the sump back to the normal operating level.
The rating should fill the sump to normal operating level and immediately inform the engineer on watch.
Cross-flooding fittings shall be operable from:
The engine room
The section where the unsymmetrical flooding occurs
Above the bulkhead deck
The bridge
The data logger on a reefer vessel normally records temperatures for air delivery, air return and cargo pulp. How would the air delivery and return temperatures be expected to vary during the first few days of carrying a cargo of citrus fruit which had not been pre-cooled before loading?
The difference between the two temperatures would steadily increase.
The difference between the two temperatures would remain constant.
The two temperatures would remain constant
The difference between the two temperatures would steadily reduce.
What is the safe time for operating the crankcase door when oil mist alarm is activated and the engine has been stopped?
After 20 minutes
After 1 minute
After 10 minutes
After 5 minutes
How can you monitor the liquid level in the vapour line?
By use of a float switch or differential pressure in the liquid receiver
By monitoring the atmosphere in the vapour line with a fixed gas detector
There isn't any possibilities to monitor liquid in the vapour line
By monitoring the temperature in the vapour line on the compressors suction side
Where is the acceptable location to smoke while on duty, or working in a cargo deck stowed with containers?
The designated smoking area inside the accommodation or on deck?
Smoke close to an entrance to the cargo deck?
Carefully smoke outside the container stowage area?
There is no smoking allowed while on duty?
What is the relative liquid density of Methane?
0.427
0.554
0.624
0.583
Which type of temperature sensor is used in this temperature measuring system shown?
Platinum resistance sensor
Quartz sensor
Thermistor sensor
Thermocouple sensor
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.
On a RoRo vessel, what is the Maximum Securing Load of reusable use wire ropes?
30% of the breaking strength
40% of the breaking strength
25% of the breaking strength
Before commencement of any work aloft, you should carry out risk assessment of the worktask. What kind of extra personal protective equipment is required as a minimum to carry out the work?
Carry out the work without extra personal protective as long as no one sees what's going on
All personnel who are working aloft, where there is a risk of falling more than two metres, should wear a safety harness (or belt with shock absorber) attached to a lifeline.
As long as someone is supporting the ladder there is no need for extra personal protective equipment
Lifeline
What is the purpose of having deep tanks on a general cargo ships?
Primarily for ballasting and to aid the stability when loaded, but may be used for liquid cargo
To raise the centre of gravity of the ship and make it a smaller GM and reduce the rolling period
To carry bulk grain
To hold solid ballast
What do you understand by the term Slewing?
Making the grab bucket/hook move up and down.
Making the complete crane move port and starboard.
Making the crane jib move up and down.
Making the crane jib move from side to side.
On the figure 4 possible definitions of the term "ASTERN" are shown. Which one is the correct one?
Astern is defined as C on the figure
Astern is defined as D on the figure
Astern is defined as A on the figure
Astern is defined as B on the figure
What do the letters "TPC" stand for?
Tonnes per Centimetre.
Tipping Centre.
Trim per Centimetre.
Tonnes per Centimetre Immersion.
A mixed deck cargo is to be loaded on a General Cargo Vessel; what are some of the important checks to be made by the Officer of the Watch?
Access to the ER and galley are unaffected
All fire hydrants and sounding pipes must be accessible
All hatch covers and the paint store must be accessible
Deck cargo is loaded no more than two metres above the deck
What does MARVS mean on a cargo tank?
Maximum Allowed Relive Valve Setting.
Minimum Allowed Relive Valve Setting.
Maximum Recovery System.
Maximum ROB of Vapour.
Why is ethylene glycol added to the L.P.G. compressor cooling water system?
To prevent the water from freezing.
To better regulate the cooling-water temperature.
To give corrosion protection.
To prevent the water from boiling.
An airway should be used when
The patient is breathing on his own but is doing so with great difficulty
The patient has stopped breathing
Patient has injury in the mouth
The patient is unconscious
On a Bulk Carrier, what should be done immediately if during the voyage the temperature of bulk coal exceeds 55?C?
Use fire fighting water in the cargo space
Notify the harbour authorities at the port of destination
Seal the hold completely and monitor the cargo using suitable instruments
Notify the ship owner and/or charterer
What is the purpose of a draught survey before and after loading on a Bulk Carrier?
The calculate the stability of the vessel
To calculate the deadweight of the vessel
To ascertain the actual weight of cargo loaded
To calculate light displacement of the vessel
Vegetable and animal oils undergo decomposition over time, generating obnoxious and toxic vapours and depleting the oxygen in the tank. What name is given to this process?
Polymerisation.
Putrefaction.
Monoxidation.
Disintegration.
What weakens a twistlock?
Lack of grease
Pitting
An oversized cone
A bent handle
What are the effects of a bulk vessel loading a high density cargo resulting in a large metacentric height (GM)?
Suffer torsional stresses and have small righting levers
Have a slow roll and very small righting levers
Have a fast roll period and possibly suffer racking stresses
Have a slow roll and large righting levers
Which IMO publication deals specifically with the construction and equipment of liquefied gas carriers?
The IMDG Code.
SOLAS.
MARPOL.
The IGC Code.
On a General Cargo vessel, the placards and labels on containers and pallets containing dangerous goods (IMDG Cargo) must be marked with what information ?
IMO Class, UN Number
Number of individual pieces of cargo
UN number
Weight and volume
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%
A decision support system for emergency management shall be provided on the navigation bridge. What type of emergency situations shall as a minimum be identified in the emergency plans?
Fire, Damage to ship, Pollution, Unlawful acts threatening the safety of the ship and the security of its passenger and crew, Pesonnel accidents, Cargo-related accidents, Emergency assistance to other ships
Evacuation, Fire, Pollution and Man-Over-Board
Man-Over-Board, Evacuation and Fire
Fire, Evacuation, Pollution, Personnel accidents and Ship Security
Which function is this operational amplifier circuit performing?
Integrator
Differentiator
Non-inverting amplifier
Inverting amplifier
When handling packaging materials consisting of wooden elements why is it necessary to comply with the International Standards for Phytosanitary Measures (ISPM) Code?
Because of legal requirements in countries that have ratified the ISPM Code
Because the wooden elements may be second-hand sanitation materials
Because the wooden elements may contain pests or other invasive species
Because the wooden elements may be mouldy
The diode shown performs which function?
Reference the transistor to +15V.
Provide an overload route for transistor current.
Allow Op Amp to top up +15V rail.
Return inductive current to supply at switch off.
What is the purpose of fixed stacking cones?
To prevent the horizontal movement of 20’containers at tank top level
To prevent the horizontal movement of 40’containers at tank top level
To lock 20’containers in 40’ cell guides
To prevent movement of 20’and 40’ containers at deck level
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
The abbreviation "COW" applies to a phase of oil tanker operations. What does it stand for?
Computer Operated Washing
Callibration (of) Oil / Water (interface)
Crude Oil Washing
Completion of Washing
Your ship is loading at a Single Point Mooring. You are the rating on duty. Which of the following areas will you monitor continuously throughout your watch?
Forcastle head / manifolds / maindeck
Pump room / engine room / Cargo Control Room
Accommodation ladder / Radio Station / Poopdeck
Bridge / Cargo Control Room / Poopdeck
To which of the following ratios are transverse accelerations related?
Ship’s breadth divided by LCB
Ship’s breadth divided by the maximum righting lever
Ship’s breadth divided by GM
Ship’s breadth divided by the distance between cargo units and the ship's centreline
Why are a greater number of lashings required to secure cargo forward on deck compared with amidships under deck of a General Cargo Vessel?
Because the dynamic stresses on the lashing are much greater
Because the roll period is greater forward
Because heavier cargo is stowed forward
Because the dynamic stresses on the lashing are much less
Did he study the contract in every detail before he signed it?
Of course he did, because he had to make sure that he could return home again.
No, he merely tried to be put ashore for medical treatment.
No, despite the fact that he promised to carry out several duties.
Yes, he wanted to see that everything was according to agreed terms.
Where should empty and unlceaned receptacles that previously contained toxic gas be stowed?
Under deck
On deck forward of the accommodation
Anywhere on deck
On deck abaft the accommodation
What should you keep in mind when releasing lashings?
Step aside when lashings are released
Close your eyes
Release lashings with great care to reduce the risk of injury when tension is released
Always use one hand!
How is a dangerous substance listed in the IMDG Dangerous Goods List?
By its Proper Shipping Name (PSN) and subsidiary name
By its Trade Name
By its Proper Shipping Name (PSN)
By its abbreviated Trade Name
Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?
Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
Place the sensor in a test tank of oil fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Place the sensor in a test tank of water fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Fit a spare temperature gauge and see if the readings are the same.
You notice the sump level in an engine has increased and no new oil has been added. What action would you take?
Reduced the load, and look after fuel or water leak.
Stop the engine and look for a fuel or water leak.
Drain some oil from the engine.
Leave it the same.
What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?
The error due to deviation is large for that ships heading
The heeling error magnets are upside down and/or not in the correct position.
The Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.
The induced magnetism from the earth's magnetic field is very strong in that area
Liquefied natural gas (LNG) is often referred to as natural gas or marsh gas. What is another common name for LNG?
Propane.
Ethane.
Butane.
Methane.
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)
Which of the following instruments is normally part of a control-loop
Transducer
Plotter
Gauge
Indicator
What term is applied to the running of a number of cargo pumps together to discharge a homogeneous cargo from multiple tanks simultaneously up a common discharge line?
Series pumping.
Integrated discharge.
Parallel pumping.
Simultaneous discharge.
How are cargo tanks classified under the IBC Code?
Stainless steel tanks / zinc coated tanks / phenolic coating tanks.
Compartments greater than 3001 cubic metres capacity / compartments between 3000 cubic metres and 1251 cubic metres capacity / compartments less than 1250 cubic metres capacity.
Centre tanks / wing tanks / deck tanks.'
Independent gravity tanks / independent pressure tanks / integral gravity tanks.
When should a crane or derrick sheave be replaced?
When wear down in the groove exceeds 20% of the wire rope diameter
When wear down in the groove exceeds 25% of the wire rope circumference
When wear down in the groove exceeds 25% of the wire rope diameter
When wear down in the groove exceeds 20% of the wire rope circumference
Hydrogen sulphide is a component associated with crude oil cargoes. At which of the following concentrations will dizziness, headache, nausea, etc occur within 15 minutes, followed by loss of consciousness and possibly death, after 30-60 minutes exposure?
50-70 ppm.
1,000 - 2,000 ppm.
200-300 ppm.
500-700 ppm.
Which special regulations cover transportation of grain on a Bulk Carrier?
IMO Grain Rules?
Port State Regulations?
Statutory Regulations?
Classification Society Rules?
What must duty crew members ensure so that ro-ro units are not damaged on board?
Units must be driven at a safe speed
Units must not be driven in poor lighting conditions
Units must not be driven over ‘D’ rings
All on-board safety signs must be intact
What type of lubricating oil is generally used for for cylinder lubrication on a large, 2-stroke diesel, main propulsion engine operating on heavy fuel oil?
Mineral based oil with high alkalinity and other additives.
The same oil as the main lubricating oil system
Straight mineral oil.
Synthetic oil.
How could your menus best contribute to reducing the number of dental problems amongst the ship's crew?
By ensuring that at least two portions of vegetables are available with every meal.
By limiting the use of sugar-rich foods and beverages and those containing high levels of starch.
By increasing the amount of red meat served on board.
By ensuring that a minimum of 1.5 grams of salt per person is included in the daily menu.
Under most circumstances, how will communication be carried out between a ship and a SAR helicopter?
On VHF Ch 70.
On 410 KHz.
On VHF Ch 16.
On 121.5 MHz.
What documentation allows a General Cargo Vessel to load dangerous package goods?
Safety Construction Certificate
Document of Authorisation for the carriage of bulk grain
Document of Compliance for carriage of dangerous goods
SOLAS Safety Equipment Certificate
What is mayonnaise made from?
Egg yolks, oil and lemon juice or vinegar.
Eggs and olive oil, beaten together.
Fromage Frais and lemon juice.
Egg whites, sunflower oil, balsamic vinegar and flour.
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
Crewmen are carrying out maintenance work in the engine room on overtime. The work does not affect machinery operation. At the end of normal working hours, what should the Engineer on Duty do?
Switch to UMS-mode and leave the engine room as normal.
Continue with manual operated engine room until the maintenance work is finished.
Switch to UMS-modeand inform the crewmen not to touch any of the machinery.
Leave the engine room after asking the crewmen to switch to UMS once they have finished working
To Sweep the Ship in an emergency means that crewmembers are:
giving safety announcements from the bridge
sounding alarm bells from the bridge
searching for passengers in cabins or other hidden places onboard
directing passenger crowds to muster and embarkation stations
On a RoRo vessel, which of these stowage situations produces high friction that does not allow movement of the cargo?
A single tier of dunnage placed between vehicles and steel decks
Steel plates placed between vehicles and steel decks
Vehicles in direct contact with steel decks
Two tiers of dunnage placed between vehicles and steel decks
To maintain good relationship among the crew on board a vessel, one must be:
Polite and diplomatic while talking to crew members
Give authority to others
Strict and authoritative while giving orders
Understanding, Co-operative, and have respect from both sides
Water and acid mixed together in certain concentrations can result in the development of dangerously high heat levels and aggressive reactions with steel surfaces. Which of the following is a general description of the approach to be adopted when cleaning a cargo tank after the discharge of Sulphuric Acid?
It is important that, once cleaning commences, large quantities of washing water can be delivered as quickly as possible, so that the acid is repaidly diluted.
It is critical that, as cleaning commences, washing water is introduced in a controlled manner, allowing time for the acid and water in the sump to mix slowly and thoroughly before the rest of the tank surfaces are flushed.
A mixture of hot fresh water and Sodium Hydroxide solution (50/50) should be prepared beforehand and then circulated around the tank, rapidly neutralising any remaining acid.
Any acid remaining in the sump should first be ejected and the tank ventilated for a minimum of 30 minutes before the introduction of any water, ensuring that there are insufficient acid residues to create any dangerous reaction.
The fuel consumption for the main engine is calculated using the readings from the supply and return flow meters which are of the positive displacement type. When compared to the quantities calculated from tank soundings and calibration tables and indicated on the contents gauges the consumption appears consistently high. Which of the options given is the most likely cause of this discrepancy?
The supply flow meter is giving too high a reading due to internal wear.
The tank calibration tables are incorrect.
The tank contents gauges are calibrated for the wrong fuel type.
The return flow meter is giving a low reading due to internal wear.
What is the maximum length of a fire zone on any deck?
50 meters
100 meters
40 meters
30 meters
The peak pressure (maximum cylinder pressure) is often taken as an indicator of medium speed engine performance along with other parameters. What would be a typical peak pressure for a modern, highly rated, medium speed diesel engine?
140 to 180 bar
10 to 12 bar
80 to 100 bar
14 to 18 bar
After starting a freon compressor, how long should you wait before opening the oil separator return valve?
Open the valve immediately.
One minute.
I do not know.
After the separator shell has warmed up.
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
What is fishmeal prone to?
Increasing anti-oxidant levels en route
Liquefaction due to vibration or compression
Moisture absorption
Decreasing anti-oxidant levels en route
What is this?
The identification stamp placed in the passport of a stowaway by an Immigration Officer to indicate that his or her nationality is "unknown".
The "Unitary Nomenclature" symbol placed alongside the name of a dangerous cargo in shipping documents to indicate that it appears on the list of approved international shipping names.
The United Nations stamp used for endorsing international shipping certificates.
The United Nations Packaging symbol used for Dangerous Goods.
On the air compressor's crankcase there is a small valve that lets off overpressure. What do we have to do if this valve is letting off pressure and oil moisture ?
Check the clearance in the bearings.
Increase the flow of cooling water.
Overhaul the compressor unit.
Block the valve because it pollutes the engine room (block off the valve).
After discharge of a bulk cargo by grabs and bulldozers (bob cats), which part of the hold must be checked very carefully for damage?
Hold lighting
Access ladders
Corrugated bulkheads
Beam knees and upper hoppers
What means of communication shall be provided to each member of the fire patrol?
A two-way portable radio
A mobile telephone
Telephones in public spaces
Emergency telephones and Public Address system
Earlier reefer vessels designed and built for liner trade usually had two or three tween decks approximately 2 to 2.5 metres in height and deep lower holds approximately 4 to 5 metres deep. Modern designs usually incorporate more decks each approximately 2.3 metres in height. What is the main reason for this fundamental design change?
The increased proportion of chilled as opposed to frozen cargoes that are carried.
There is an almost universal use of standard height pallets.
It is easier to construct vessels with shallow decks.
The increased number of container vessels has reduced the tendency to carry general cargo outbound from Europe or North America to Australia and New Zealand on reefer vessels.
Where is a load-equalising device used?
With wind lashings
With parallel lashing rods
With single lashings
With upper and lower crossed lashings
Select the option which correctly completes the following statement. "A conventional reefer vessel operating with a controlled atmosphere plant must have cargo spaces which…
… have a gas tight seal."
… are fitted with variable speed fans."
… have the normal bulkhead and deckhead penetrations required for a reefer compartment."
… have a minimum number of deckhead and bulkhead penetrations."
A 3-phase cage rotor induction motor requires protection by a time delay overload trip. What is the reason for this?
It will tolerate fault conditions during start up
Fuses act too quickly
Fuses act too slowly
It will allow for inrush current or motor specific faults
Which of the below structures of bulk carriers are considered critical?
Forecastle deck
Upper and lower connection of main side frames
Longitudinal deck plating outside hatches
The girders
In conjunction with which two sets of international regulations should the IMDG Code be read for security purposes?
Part B of the ISPS Code and Chapter II of the Maritime Transport and Offshore Facilties Act.
IMO NVIC 24 and 46 CFR 2.05
Chapter V of SOLAS and Annex II of MARPOL.
Chapter XI-2 of SOLAS and Part A of the ISPS Code.
Passenger ships shall either carry automatically self-righting liferafts or canopied reversible liferafts. What does it mean that a liferaft is automatically self-righting?
The liferaft will automatically turn back into an upright position when it is empty of people
One person can manage to turn the liferaft back into an upright position
The liferaft will automatically turn back into an upright position when it is fully loaded with people
It means the same as self-righting lifeboats
If the carriage of a new Noxious Liquid Substance not yet listed in the IBC Code is considered, this may be achieved through a "tri-partite" agreement. Who must this agreement be between?
The Port State of the Shipper / the Flag State of the Carrier / the Port State of the Receiver.
The Flag State of the Shipper / the Flag State of the Charterer / the Flag State of the Receiver.
The IMO / the Port State of the Shipper / the Port State of the Receiver.
The Shipper / the Receiver / the Operator or Charterer.
How should you, as helmsman, give feedback to the OOW (officer on watch) that his orders are understood?
You don’t have to give any feedback
By saying: “Yes Sir”
By saying: “OK”
By repeating the order
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.