Class 4 (4th Engineer) MEKM 📅 May 2024

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

Analyse each of the above statements and State whether they are true or false with a brief reasoning.

Reference Answer

All four statements provided represent critical and fundamental requirements that a fuel injection system for a large marine diesel engine must fulfil. Each statement is TRUE. Below is a detailed analysis of each requirement from an examiner's perspective.
### (a) Accurate Metering of Small Amount of Fuel Oil
**Statement Analysis: TRUE**
This is a primary function of the fuel injection system. The power output of a diesel engine is controlled by the quantity of fuel injected per cycle, not by throttling the air intake. Therefore, precise and repeatable metering of fuel is essential for stable engine operation and accurate load control.

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