Hotel Service Unit 18 Q5 Quiz

Hotel service unit 18 Q5

1 / 10

How does a single-stage static OWS ensure compliance with MARPOL Annex I?

D) By heating the water to remove oil particles

A) By allowing all bilge water to bypass treatment

B) By automatically discharging all bilge water

C) By ensuring the oil content in discharged water does not exceed 15 ppm

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What is the primary function of a single-stage static Oily Water Separator in marine applications?

D) To enhance vessel stability

C) To cool engine components

A) To increase fuel efficiency

B) To separate oil from bilge water before discharge to meet MARPOL Annex I standards

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What is a primary limitation of a single-stage static OWS?

D) It requires continuous manual operation

C) It can handle large debris without clogging

B) It cannot function at high flow rates or with detergent contamination

A) It is highly effective with detergents

4 / 10

Why is flow control important in a single-stage static OWS?

B) To allow consistent separation efficiency by controlling bilge water flow rate

C) To prevent the entry of water into the engine

A) To increase the speed of oil discharge

D) To cool the water before separation

5 / 10

What role does the coalescing plate play in a single-stage static OWS?

D) It reduces the temperature of bilge water

B) It removes contaminants through filtration

What role does the coalescing plate play in a single-stage static OWS?

C) It helps smaller oil droplets merge into larger droplets for easier separation

6 / 10

Which of the following features is essential in the design of a single-stage static OWS?

A) High-speed rotating blades

B) Baffles to promote separation

D) Vacuum pump

C) Heat exchanger

7 / 10

What is the purpose of an oil content discharge monitor in conjunction with a single-stage static OWS?

A) To measure and confirm that oil content in the discharge meets MARPOL Annex I limits

B) To increase the pressure in the system

C) To remove large particles from bilge water

D) To inject cleaning agents into the bilge water

8 / 10

How does a single-stage static Oily Water Separator typically separate oil from water?

B) Through gravity separation based on density differences

A) By using chemical additives

C) By heating the mixture

D) By rapid mechanical agitation

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Under which condition does a single-stage static OWS operate most effectively?

B) With controlled, low flow rates and minimal detergent presence

A) With high-pressure water flow

D) When used at very high temperatures

C) When handling large solid debris

10 / 10

What is a significant advantage of using a single-stage static OWS?

B) It allows for rapid processing of high oil-content bilge water

C) It is relatively simple and cost-effective compared to multi-stage systems

D) It automatically removes all oil content from the water

A) It requires no maintenance

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