Hotel Service Unit 18 Q5 Quiz

Hotel service unit 18 Q5

1 / 10

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

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?

2 / 10

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

C) By heating the mixture

A) By using chemical additives

B) Through gravity separation based on density differences

D) By rapid mechanical agitation

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

A) It is highly effective with detergents

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

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

D) To cool the water before separation

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

5 / 10

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

D) To inject cleaning agents into the bilge water

C) To remove large particles from bilge water

B) To increase the pressure in the system

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

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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

7 / 10

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

C) Heat exchanger

B) Baffles to promote separation

D) Vacuum pump

A) High-speed rotating blades

8 / 10

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

A) To increase fuel efficiency

D) To enhance vessel stability

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

C) To cool engine components

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

D) It automatically removes all oil content from the water

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

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

A) It requires no maintenance

10 / 10

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

C) When handling large solid debris

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

D) When used at very high temperatures

A) With high-pressure water flow

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