Class 4 (4th Engineer) MEKG 📅 Apr 2024

Exam Question

(a) Using a line diagram, show the arrangement of 'emergency bilge suction for a general cargo ship (8)

(b) State the purpose of 'bilge injection valve and to which pump or pumps it is connected. Give reasons (4)

(c) State requirements with respect to the dimensions of the bilge injection valve and the main sea suction valve on the sea chest (4)

Reference Answer

### (a) Arrangement of Emergency Bilge Suction
The emergency bilge suction system is a SOLAS requirement designed for the rapid dewatering of the engine room during a major flooding event, where the standard bilge pumps are of insufficient capacity. The arrangement utilizes one of the largest capacity pumps in the machinery space, typically the main sea water cooling pump.
**Key Components and Arrangement:**
1. **Main Sea Chest:** The primary intake for sea water, fitted with a main sea suction valve (also known as the main injection valve).

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