Welcome to the website where you can pass online the CES CBT CD-0337 test on the subject «Fresh Water Management». Practice like this will help you as a marine specialist improve your knowledge with the help of online studying and appraisal practice. CES based on practical information and marine specialists experience.
CES tests developed for evaluating seaman basic knowledge by Seagull Company (rebranded as «OTG»), is an evaluating online-tool, used for revealing any professional preparation needed in specific fields of knowledge, defined by STCW.
CES tests have proven themselves as good tools for the selection and recruitment process, as well as advancing the level of knowledge of the current officers and crew. Ocean Technologies Group use various subjects for question creation, which includes:
Crowd and Crisis Management;
Integrated Navigation System (INS);
Ballast water management;
Handling and Stowage;
Vessel operation management and safety;
Marine engineering;
Maintenance and repair, etc.
Current test contains Seagull CES questions on the subject «Fresh Water Management». Those questions can be used for competence verification specialist capable of preventing accidental situations related with transporting safety, or also for self-examination.
«Fresh Water Management» subject includes theoretical and practical information about advanced training for work on any type of vessel. The test covers the knowledge essential for maintaining and managing freshwater systems on any type of vessel. The course provides detailed insights into water purification, storage and distribution aboard ships. It emphasizes the importance of maintaining water quality standards for crew health and operational efficiency. Participants will learn best practices in the prevention of contamination and the safe handling of potable water. Practical training includes the use of modern equipment and technologies for freshwater system maintenance. The course also addresses relevant regulations and guidelines governing water management in the maritime industry. Overall, it equips participants with the skills needed to ensure safe and effective freshwater management in various marine environments.
On this site Crew Evaluation System Test on the subject «Fresh Water Management» contains 36 questions you need to answer with no possibility to go back to previous question. Therefore, we recommend carefully reading each question and making decision with no hurry. In case you have some difficulty answering, you have also possibility to request a hint.
Choose the regime, in which you want to pass CES test:
Training
Exam
Wild Mode
* Some questions may have more than 1 correct answer.
According to this module, how often should potable water on a vessel be tested for E.coli bacteria? Select the ONE correct answer.
Every 3 months.
Every 6 months.
Every month.
Every week.
Approximately, how long does chlorine take to disinfect water? Select the ONE correct answer.
5 minutes.
30 minutes.
60 minutes.
6 hours.
Choose the ONE option that best completes the following statement. A shore company supplying water to a vessel should …
… ensure the water is free from pollutants and contaminants.
… deliver the water free of charge because it is a basic need.
… ensure the water is delivered at a reasonable pressure.
… treat the water more thoroughly than they would for local people.
Choose the ONE option that correctly completes the following statement. An upland water reservoir …
… contains nothing but pure water.
… is fed by rivers and streams draining surrounding land.
… is filled with water from underground wells.
… is usually totally covered.
Disinfectants should kill bacteria, viruses and micro-organisms when they are first added to potable water. What other property is desirable for a disinfectant? Select the ONE best answer.
It should give long term protection.
It should be easy to administer.
It should protect pipework from corrosion.
It should protect the water from chemicals.
How does sludge form in a fresh water tank? Select the ONE correct answer.
It is probably the result of coagulation within the water.
It is a result of adding chlorine to the water when it is loaded.
It is a result of parasitic action within the water.
It is caused by the action of the water with the tank coating.
How much time should there be between taking and testing a potable water sample? Select the ONE correct answer.
As much time as is needed.
The shortest time possible.
Not more than a month.
Not more than a week.
How should a vessel’s potable water transfer hose be stored? Select the ONE correct answer.
With both ends capped.
Both ends should be left open to air it.
It should be hung vertically to allow it to drain.
It should be uncoiled and laid out to dry.
On a vessel, where should potable water samples be taken? Select the ONE best answer.
From one point.
From the supply side of the fresh water pump.
From the water tank itself.
At multiple points around the vessel.
What are the effects of a person drinking water containing bacteria? Select the ONE correct answer.
If bacteria is harmful, sickness will result.
There will be a bad taste, so the person will not drink a lot.
There will be no affect, as the body can cope with it.
There will definitely be sickness and death.
What biological pollutants can be found in untreated fresh water? Select the ONE correct answer.
Bacteria, parasites and chemicals.
Bacteria, parasites and viruses.
Parasites, chemicals and sediment.
Sediment, viruses and bacteria.
What is meant by the expression «Ultraviolet Germicidal Irradiation» when referring to water treatment? Select the ONE correct answer.
It is a process to disinfect water.
It is a process to make water clear.
It is a process to produce nice tasting water.
It is a process to sample the level of bacterial contamination.
What is required of a disinfectant used within potable water? Select the ONE best answer.
It should kill bacteria, viruses and micro-organisms.
It should make the water clear by removing sediment.
It should make the water smell fresh.
It should remove all parasites from the water.
What is the maximum level of chloramine in potable water as recommended by the USA Environmental Protection Agency? Select the ONE correct answer.
4 parts per million.
14 parts per million.
40 parts per million.
46 parts per million.
What is the recommended treatment for a vessel’s potable water system during dry-dock? Select the ONE correct answer.
It should be cleaned with chlorinated water at a strength of 0,2 ppm.
It should be cleaned with chlorinated water at a strength of 5 ppm.
It should be cleaned with chlorinated water at a strength of 50 ppm.
It should be cleaned with chlorinated water at a strength of 500 ppm.
What is the recommended treatment for a vessel’s potable water tanks at intervals of not greater than five years? Select the ONE correct answer.
They should be pressure tested.
They should be inspected for bacterial build-up.
They should be re-coated with epoxy paint.
They should be scaled then re-coated.
What is the recommended treatment for cleaning a potable water transfer hose? Select the ONE correct answer.
By applying a detergent cleaner inside and out.
By leaving it filled with a solution of 50 ppm free chlorine.
By heat-treating it with steam to remove bacteria.
By pumping chlorinated water through it.
What items are typically found in an upland water reservoir? Select the ONE correct answer.
Fish, debris, mud and aggregate.
Chemicals from industry and human sewage.
Items of domestic rubbish.
None, as the water is intended for drinking.
What name is commonly given to chlorine when it is used to disinfect fresh water? Select the ONE correct answer.
Entrained chlorine.
Fixed chlorine.
Free chlorine.
Trapped chlorine.
What should potable water be routinely tested for on board a vessel? Select the ONE best answer.
The presence of calcium, chloramine and lead.
The presence of chorine, iron and bacteria.
The presence of fluoride, chloramine and pesticides.
The presence of chlorine, chloramine and bacteria.
What type of container should be used to hold a potable water test sample? Select the ONE correct answer.
One made of metal.
One made of plastic.
One made of wood.
One made of glass.
When filters are fitted to a potable water system, what maintenance do they require? Select the ONE best answer.
They should be removed and cleaned as procedures advise.
They should be cleaned daily.
They should be replaced every day.
They should not be disturbed.
When the cap from a deck potable water fill point is removed, what should happen to it? Select the ONE correct answer.
It should be kept in a safe place, free from contaminants.
It shoud be left close by, on a hatch top.
It should be left on the bulwark, close to the filling point.
It should be placed on deck, close to the filling point.
Which ONE of the following options correctly completes the following statement? Disinfected water passing through a vessel’s pipework system …
… corrodes the brass components in pumps.
… helps keep the internal parts free from bacteria.
… destroys the seals used in a pipework system.
… helps the water flow more efficiently.
Which ONE of these options best completes the following statement? Filters used in a fresh water system …
… can be breeding grounds for bacteria.
… are fitted to trap chemicals.
… must be five microns mesh size.
… should be changed once a year.
Which ONE of these options correctly completes the following statement? Water made on board a vessel has chemicals added to it to …
… make it safe to consume.
… give it some flavour and make it less corrosive.
… remove the colour found in seawater.
… remove the salt from the seawater used.
Which ONE of these options describes the three conditions to be met for ultraviolet radiation to disinfect water? Select the ONE correct answer.
The emitted radiation is correct, the exposure time is long enough, and there are no particles shadowing.
The emitted radiation is correct, the water is at the correct temperature and there are no particles shadowing.
The exposure time is long enough, there are no particles shadowing, and the water is at the correct pressure.
There are no particles shadowing, the emitted radiation is correct and the water is clear.
Which of the following is a characteristic of water from a naturally occurring underground fresh water reservoir? Select the ONE correct answer.
It can be heavily contaminated with fish, vegetable material and mud.
It is generally free from fish, vegetable material and mud.
It can contain quantities of naturally occurring chlorine.
It is often not suitable for use as drinking water.
Which of these lasts longer as a disinfectant when used in fresh water? Select the ONE correct answer.
Chloramine.
Free chlorine.
Why does potable water need to be disinfected, even after it has been filtered? Select the ONE correct answer.
To comply with a water company’s requirements.
To remove harmful bacteria and viruses.
To make the water clear and nice to drink.
To make the water smell like chlorine.
Why does the port authority often have water storage tanks? Select the ONE best answer.
To be able to quickly deliver relatively large quantities to a ship.
Because the water supplier has recommended this.
Because the World Health Organisation has insisted on this.
To purify water before it has been sent to ships.
Why is boiling fresh water not a method used at sea when disinfecting water? Select the ONE best answer.
Because it is not allowed by flag State rules.
It is not a proven way to disinfect water.
It would take too much time and energy.
There is not a container big enough to do this.
Why is chloramine used to treat fresh water? Select the ONE correct answer.
Because it gives long-term disinfectant protection to water.
Because it acts immediately, but then has no long lasting effects.
Because it is completely safe to handle.
Because it is the cheapest, readily available product.
Why is it important that a port has a Fresh Water Management Plan in place? Select the ONE best answer.
Because the local water supplier will insist on it.
Because they are audited under port state control.
To maintain the quality of the water supplied to it.
To be able to purify the poor quality water supplied to it.
Why should records of potable water treatment and storage be kept on a vessel? Select the ONE best answer.
To show that water is being managed properly on the vessel.
Because records show where the water was loaded or made.
Because the company requires it to be done.
To record water consumption on the vessel.
With regards to crew safety, what is the most important part of a vessel’s Fresh Water Management Plan? Select the ONE best answer.
Diagrams showing the fresh water system on a vessel.
Information relating to tank ullages and specific gravities.
The procedures that ensure water is safe to drink.
Instructions on how to start the fresh water generator.
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