Class 4 (4th Engineer) MEKM 📅 Jan 2025

Exam Question

The main requirements which a fuel injection system must fulfil are

(a) Accurate metering of small amount of fuel oil

(b) Control of quality of fuel injection

(d) Effective distribution of the fuel in the combustion space

State whether each one of the points made above are true or false with reasons. (16)

Reference Answer

All four statements provided describe critical requirements that a marine diesel engine fuel injection system must fulfil for safe, reliable, and efficient operation. Each statement is **TRUE**. A detailed justification for each is provided below.
### (a) Accurate Metering of Small Amount of Fuel Oil
**Verdict: True**
Accurate metering of fuel is fundamental to engine load control and combustion efficiency. The quantity of fuel injected per cycle directly determines the power developed by the cylinder.

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