Class 4 (4th Engineer) MEKM 📅 Apr 2025

Exam Question

The main requirements which a fuel injection system must fulfil are (16)

(a) Accurate metering of small amount of fuel oil

(b) Control of quality of fuel injection

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

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

Reference Answer

Based on the provided information and established marine engineering principles, all four statements are correct and describe essential requirements for a diesel engine fuel injection system. A detailed, surveyor-grade explanation for each is provided below.
### (a) Accurate metering of small amount of fuel oil
**Verdict: TRUE**
This is the most fundamental requirement for engine power control and stability. The amount of fuel injected per cycle directly determines the Mean Effective Pressure (MEP) and consequently the torque produced by the engine.

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