“Seagull CES test online about Marine Fuel Handling” (Crew Evaluation Test) will help seafarers in preparation for exams for getting certificate of confidence.
This test contains 45 questions.
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Amount of questions: 45.
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A centrifuge is used to give more effective separation of water and dirt from fuel. How does it achieve this better separation?
By increasing the separating force by centrifugal action.
By having a self-cleaning facility.
By having a high flow rate.
By using gravity discs.
A fuel oil tank is fitted with a sounding pipe, which is used from within the engine room. Which one of the following fittings given must be fitted?
Self closing cock with test cock.
Non return float valve.
Flame trap.
Tank high level alarm.
A purifier is used to clean the fuel prior to delivering it to the service tank for use in the engine. Which one of the options shows what should be removed from the fuel by the purifier?
Water and dirt.
Water.
Dirt.
Microbial contamination.
Back flushing filters are sometimes fitted in the onboard fuel oil treatment system. Which one of the following options best describes what the unit is normally back flushed with?
Diesel oil.
Air.
Water.
Cleaned fuel.
Centrifuges are often used in pairs to give a combined cleaning effect on fuel oil. Which of the options given is the preferred arrangement for these combinations?
Purifier and clarifier in parallel.
Two clarifiers in series.
Two purifiers in parallel.
Purifier and clarifier in series.
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