Class 4 (4th Engineer) SSEP 📅 Apr 2023

Exam Question

With reference to an oily water separator

(a) (i) Sketch such a device (5)

(ii) Describe the passage of oil/water mixture from the delivery of pump to the outlets of the separator. (5)

(b) State how oil density and temperature affect the separation of oil from water. (10)

Reference Answer

### (a) (ii) Description of Passage of Oil/Water Mixture
The passage of the oily water mixture through a typical two-stage oily water separator (OWS) is designed to progressively remove oil from water by exploiting differences in density and by promoting the coalescence of small oil droplets.
1. **Inlet and Pump Selection**:
* The oily water mixture is drawn from the bilge holding tank by a dedicated OWS pump.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play