Class 4 (4th Engineer) SSEP 📅 Nov 2024

Exam Question

In engine rooms that are operated under UMS conditions describe with the aid of sketches how the following are monitored:

(a) The perforation of a high pressure fuel pipe (7)

(b) The imminence or possibility of a scavenge fire (7)

Reference Answer

### (a) Monitoring of High-Pressure (HP) Fuel Pipe Perforation (7 Marks)
#### 1. Regulatory Requirement & Principle
In compliance with SOLAS Ch II-2, Reg 4, all external high-pressure fuel delivery lines between the high-pressure fuel pumps and fuel injectors must be protected with a sheathing arrangement. The principle of monitoring is to detect a leak from the primary HP pipe by collecting the leaking fuel within the outer sheath and activating an alarm.
#### 2. Construction & Arrangement

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