Hotel Service Unit 9 Q2 Quiz

Correct Answer:
B) Water

Explanation:
Water is a common contaminant in marine gas oil, usually introduced through condensation, leaks, or during bunkering. It can cause poor fuel performance, corrosion, and engine damage.

Correct Answer:
A) Seawater

Explanation:
Seawater can enter marine gas oil during bunkering or through leaks, leading to corrosion of fuel systems and reduced combustion efficiency.

Correct Answer:
B) By using fuel separators or centrifuges to remove water from the fuel

Explanation:
Fuel separators or centrifuges are used to remove water from marine gas oil. These devices work by spinning the fuel, which separates water and other impurities based on density differences.

Correct Answer:
A) By using fuel filtration systems to remove solid particles

Explanation:
Fuel filtration systems are designed to remove solid contaminants such as sediment and sludge from the fuel. These systems help maintain clean fuel for efficient engine operation.

Correct Answer:
B) Microbial organisms (bacteria and fungi)

Explanation:
Microbial organisms, such as bacteria and fungi, can grow in marine gas oil when water is present. This contamination leads to the formation of sludge, which can block filters and fuel lines.

Correct Answer:
B) Adding biocides to the fuel to kill bacteria and fungi

Explanation:
Biocides are chemicals added to the fuel to kill microbial organisms such as bacteria and fungi, preventing the formation of sludge and protecting the fuel system from blockages and corrosion.

Correct Answer:
B) Sediment and sludge

Explanation:
Sediments and sludge can accumulate in fuel due to improper handling, storage, or microbial growth. These contaminants can block filters and damage fuel injection systems.