Welcome to the website where you can pass online the CES CBT CD-4016 test on the subject «Fuel oil bunkering, Understanding test results». 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 «Fuel oil bunkering, Understanding test results». Those questions can be used for competence verification specialist capable of preventing accidental situations related with transporting safety, or also for self-examination.
«Fuel oil bunkering, Understanding test results» subject includes theoretical and practical information about advanced training for work on any type of vessel. The test is a crucial aspect of advanced training for personnel working on various types of vessels. This training module provides knowledge on the procedures and protocols involved in fuel oil bunkering operations. Understanding test results is essential to ensure that the fuel oil being bunkered meets the required standards and specifications. The training covers topics such as fuel oil sampling, testing and analysis, as well as the interpretation of test results. It also delves into the importance of fuel oil quality and its impact on vessel performance, safety and environmental compliance. Participants in this training program learn how to identify potential issues with fuel oil quality and take corrective action to prevent problems. The training is designed to equip personnel with the knowledge and skills necessary to manage fuel oil bunkering operations effectively and efficiently. By understanding test results, vessel personnel can ensure that their ships are operating with high-quality fuel, minimizing the risk of engine damage and reducing emissions.
On this site Crew Evaluation System Test on the subject «Fuel oil bunkering, Understanding test results» contains 22 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.
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* Some questions may have more than 1 correct answer.
Fatty Acid Methyl Esters reduce the ignition qualities of the fuel.
Fatty Acid Methyl Esters increase the risk of microbial growth and filter blockage.
Fuels with a high FAME content have a much lower calorific value.
The condition of distillate fuels can often be quickly assessed by a visual inspection of the sample, which should be bright and clear. At what temperature should this test be carried out? Select the ONE correct answer.
Between 10 and 25 degrees Celsius.
The sample should be cooled to below 10 degrees Celsius.
The sample should be warmed to at least 30 degrees.
The sample should be warmed to within 10 degrees Celsius of its closed flash point.
What action should be taken if a significant amount of water is discovered in the ship’s fuel oil? Select the ONE best answer.
Increase bunker tank temperatures and try to evaporate as much water as possible.
The water will turn to steam during combustion, so there may be some benefits.
Keep the settling tank temperatures high and drain them frequently. Operate separators in parallel.
Transfer the fuel to other tanks, thereby mixing the fuel and lowering the percentage of water to a manageable amount.
What corrective action can be taken if the residual fuel bunkered has a low net specific energy? Select the ONE correct answer.
None, it just means the fuel has a low energy value, so more will need to be burned for the same power.
It will need to be blended with distillate fuel onboard before it can be burned.
The fuel oil temperature will need to be decreased to raise the viscosity for atomisation.
The timing of the engine will need to be adjusted in order to burn the fuel.
What difficulties can occur when a fuel with a low Calculated Cetane Index (CCI) is used? Select the ONE correct answer.
Main engine cylinder pressures can be excessive.
There may be excessive cylinder liner wear.
There may be starting difficulties at low temperatures, ignition delay and incomplete combustion.
There may be high exhaust temperatures at high loads.
What is the minimum allowable closed flash point of marine fuel oils used for propulsion? Select the ONE correct answer.
50 degrees Celsius.
60 degrees Celsius.
70 degrees Celsius.
More than ten degrees below the auto-ignition temperature.
What is the «CCAI» value of a fuel, and why is it significant? Select the ONE correct answer.
It is the Calculated Carbon Aromaticity Index, and gives some indication of how volatile the fuel is.
It is the Combustible Carbonic Acids Index, and gives some indication of the acidic deposits formed after combustion.
It is the Calculated Carbon Aromaticity Index, and gives some indication of the ignition quality of the fuel.
It is the Concentration of Carbon Aromatics Index, and gives some indication of the deposits left after combustion.
When are deposits in the engine due to Vanadium most likely to be a problem? Select the ONE best answer.
At low operating temperatures.
When the ratio of Vanadium to Sodium is 3:1 and the Vanadium content is greater than 150 mg/kg.
When there are equal amounts of Sodium and Vanadium in the fuel.
When there is no Sodium in the fuel.
Why are catalytic fines so problematic when present in residual fuel oil? Select the ONE correct answer.
They are small and difficult to remove, but very hard and cause rapid wear of engine parts.
They are an indication that the fuel has not been completely refined and may therefore give poor combustion.
They are an indication that the fuel oil has been contaminated with other waste oils, such waste lubricating oil, which will give poor combustion.
They cannot be burned and therefore lead to sticky deposits in the combustion chambers of the engine.
Why can burning distillate fuels present a problem onboard ship? Select the ONE correct answer.
The viscosity of the fuel may fall below that recommended by manufacturers for successful injection.
Exhaust temperatures are higher when using distillate fuels.
The fuel oil density is too low for effective separation.
They are often contaminated with other products.
Why is the Kinematic viscosity of residual fuel oils important? Select the ONE best answer.
It directly affects the price of the fuel.
It has the biggest influence on how we set up the separators and self-cleaning filters for fuel oil treatment.
It is an indicator of fuel quality.
We need sufficient heating capacity to be able to reduce the viscosity for pumping.
Why is the Micro Carbon Residue of a distillate fuel important? Select the ONE correct answer.
High levels result in more carbonaceous deposits in the engine.
It is a measure of how abrasive the deposits left in the engine cylinder will be.
It is a measure of how much energy is released when the fuel is completely burned.
It is an indication of how likely it is that filters will be clogged, or need to be changed or back-flushed.
Why is the Sulphur content of marine fuel oils so important? Select any answers that you think apply.
Sulphur oxides formed during combustion can lead to corrosion of engine parts.
The amount of Sulphur in the fuel will determine the type and feed rate of main engine cylinder lubrication used.
To protect the environment, the amount of Sulphur in fuel is limited by legislation, particularly in Emission Control Areas.
Sulphur does not burn.
Why is the pour point of a fuel important? Select the ONE correct answer.
Above the pour point, the fuel will start to evaporate and pumps will gas up.
Above the pour point, the fuel will start to stick to the surfaces of heat exchangers.
Below the pour point, the fuel will not flow. It will tend to solidify and be difficult to re-heat.
If heated above the pour point, the fuel will start to separate out into its various fractions.
Why is water contamination of distillate fuels a particular problem? Select the ONE best answer.
It can lead to microbial growth.
It changes the appearance of the fuel.
Water cannot be easily removed in the separators.
Water will not separate from the fuel in the settling tank.
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