Hotel Service Unit 7 Q2 Quiz

Correct Answer:
B) Presence of water

Explanation:
The water crackle test helps detect the presence of water in the fuel, which is indicated by a crackling sound when the fuel is heated on a hot plate.

Correct Answer:
B) It determines the fuel’s water content, ensuring it is within safe operational limits

Explanation:
The ASTM D95 test is essential for determining the amount of water in the fuel. This ensures that the fuel is safe to use and prevents engine issues caused by water contamination.

Correct Answer:
B) Leaking steam pipes or cooling water systems near fuel tanks

Explanation:
Leaking steam pipes or cooling water systems close to fuel tanks can introduce water into the fuel system, leading to contamination.

Correct Answer:
B) Water crackle test

Explanation:
The water crackle test involves heating a small sample of fuel on a hot plate. If water is present, it will vaporize and create a crackling sound, indicating water contamination in the fuel.

Correct Answer:
B) Poor combustion and reduced engine performance

Explanation:
Water contamination in fuel can cause incomplete combustion, leading to reduced engine performance and efficiency. Water can also damage fuel injectors and lead to operational issues.

Correct Answer:
B) It can cause corrosion in fuel system components

Explanation:
Water in fuel can cause corrosion in fuel system components such as pumps and injectors. This leads to premature wear and tear, which can result in equipment failure and higher maintenance costs.

Correct Answer:
B) ASTM D95 distillation test

Explanation:
The ASTM D95 distillation test is a standard test used to determine the water content in petroleum products, including marine diesel oil. It accurately measures the percentage of water present in the fuel.

Correct Answer:
A) Blockage of fuel filters

Explanation:
Water in the fuel can cause blockages in fuel filters, which prevents proper fuel flow to the engine. This can lead to engine shutdown or reduced performance due to fuel starvation.

Correct Answer:
C) Condensation forming in fuel tanks

Explanation:
Condensation can form inside fuel tanks due to temperature changes, which can lead to water contamination in the fuel. This is a common source of water ingress into fuel systems on vessels.

Correct Answer:
B) Seawater entering the fuel system during bunkering

Explanation:
Seawater can accidentally enter the fuel system during the bunkering process if proper precautions are not taken. This can lead to water contamination of the fuel, which negatively affects engine performance.