Hotel Service Unit 8 Q1 Quiz

Hotel Service Unit 8 Marine gas oil Q1

1 / 10

What is the effect of microbiological growth in marine gas oil?

A) It enhances the fuel’s efficiency

D) It increases fuel combustion efficiency

C) It reduces the water content in fuel

B) It can clog fuel filters and lead to corrosion in the fuel system

2 / 10

What is another method of removing microbial contamination from marine fuel?

C) Increasing the fuel’s sulfur content

B) Regularly draining water from the fuel tanks and cleaning the tanks to remove microbial deposits

D) Reducing the engine’s operating speed

A) Filtering the fuel through a fine mesh filter

3 / 10

What is another method to reduce the risk of microbiological contamination in fuel?

D) Increasing the sulfur content of the fuel

B) Reducing fuel temperature to freezing levels

A) Using fuel additives that inhibit microbial growth

C) Storing fuel in open containers

4 / 10

How can microbial contamination be removed from marine gas oil?

B) By using chemical biocides to kill the microbes and physically removing water from the fuel system

D) By diluting the fuel with seawater

C) By freezing the fuel

A) By boiling the fuel

5 / 10

Which of the following is an indication of microbial contamination in fuel?

B) Sludge formation and filter blockages

A) Higher flash point

D) Increase in fuel’s sulfur content

C) Reduced fuel density

6 / 10

Which environment is most favorable for microbial contamination in marine gas oil?

A) Dry storage tanks

D) Tanks with high temperatures but no water

C) Tanks exposed to direct sunlight

B) Tanks with stagnant water and fuel

7 / 10

How can microbiological contamination in marine gas oil be detected?

D) By observing the fuel consumption rate

C) By measuring the temperature of the fuel

B) Through fuel sample analysis, using microbiological testing methods to detect the presence of bacteria and fungi

A) By checking the color of the fuel

8 / 10

What is another consequence of microbiological contamination in marine fuel?

C) Enhanced engine performance

A) Improved fuel viscosity

D) Reduction of sulfur content

B) Formation of biofilm and deposits that interfere with fuel flow

9 / 10

How can the risk of microbial contamination in marine gas oil be reduced?

B) By ensuring fuel tanks are kept dry and free of water accumulation

C) By exposing the fuel to direct sunlight

A) By keeping the fuel temperature low

D) By reducing the fuel’s viscosity

10 / 10

Which of the following conditions must be present for microbes to live and multiply in marine gas oil?

D) Absence of oxygen

B) Water and the presence of organic materials such as hydrocarbons

C) Low temperatures and low humidity

A) High salinity and pressure

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