Hotel Service Unit 18 Q1 Quiz

Correct Answer:
B) To prevent backflow into the separator

Explanation:
Placing the discharge line higher than the OWS prevents backflow, ensuring that separated oil does not re-enter the separator, which could reduce the system’s efficiency.

Correct Answer:
A) It provides a consistent flow rate, regardless of system pressure

Explanation:
Positive displacement pumps maintain a steady flow, which is crucial for the OWS system to separate oil from water effectively. Centrifugal pumps, on the other hand, have variable flow rates depending on backpressure, which could disrupt the separation process.

Correct Answer:
B) To ensure efficient oil-water separation without overwhelming the system

Explanation:
Exceeding the flow rate can disrupt the separation process, as the OWS may not have enough time to separate oil from water, leading to improper discharge and potential environmental violations.

Correct Answer:
B) They break down oil particles, making it harder to separate oil from water

Explanation:
Detergents emulsify oil and water, creating smaller oil particles that the OWS cannot easily separate, potentially leading to non-compliant discharge overboard.

Correct Answer:
B) To release any trapped air, which could impede the separation process

Explanation:
Trapped air can disrupt the OWS’s ability to separate oil from water. An air release valve allows air to escape, ensuring optimal operation of the separator.