Class 4 (4th Engineer) MEKM 📅 Nov 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) Selective distribution of the fuel in the combustion space

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

Reference Answer

Each of the four statements represents a critical and fundamental requirement for a marine diesel engine fuel injection system. All statements are **TRUE**. A detailed justification for each is provided below.
### (a) Accurate Metering of Small Amount of Fuel Oil
**Statement: TRUE**
**Reasoning:** The accurate metering of fuel is directly proportional to the control of engine power output and ensures balanced load distribution across all cylinders. The system must precisely deliver the correct quantity of fuel for each power stroke, under all operating conditions from dead slow to full load.

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