Hotel Service Unit 14 Q1 Quiz

Hotel Service Unit 14 Fresh water Q1

1 / 8

What other benefit does adding hydrated lime to water provide?

A) Decreases the taste of salt in water

D) Increases the oxygen content

B) Improves the taste by adding minerals

C) Softens the water by reducing hardness

2 / 8

Why is it important to inspect a tank before reintroducing it to service?

B) To verify it is structurally sound and free from any signs of corrosion or damage

A) To ensure the tank is well-ventilated

C) To check if it is airtight

D) To confirm it is large enough

3 / 8

After cleaning the tank, what should be done next before putting it back into service?

C) Immediately fill it with seawater

B) Leave it open to air for 24 hours

A) Rinse the tank with treated water to remove residual disinfectants

D) Add chlorine directly to the tank

4 / 8

Why is hydrated lime added to fresh water produced on board an ocean-going vessel?

A) To soften the water by removing salts

C) To remove organic compounds

B) To adjust the pH level, making the water slightly alkaline and reducing corrosion

D) To increase the water temperature

5 / 8

Which other method is commonly used to produce fresh water on vessels?

A) Chlorination

C) Solar heating

D) Ion exchange

B) Reverse osmosis filtration

6 / 8

What is the first step before bringing a fresh water tank back into service?

D) Increase the air pressure in the tank

A) Check for fuel contamination

B) Clean and disinfect the tank

C) Fill it with treated water immediately

7 / 8

What is one method commonly used on board ships to kill bacteria in potable water?

B) Adding chlorine or chlorine-based compounds

D) Adding carbon dioxide

A) Adding sodium chloride

C) Using deionization

8 / 8

Which alternative method can be used to sterilize water on board without adding chemicals?

A) Adding sand filters

B) Using ultraviolet (UV) light

C) Boiling the water

D) Adding mineral supplements

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