🔍 Key Concepts

• Fuel injection metering in diesel engines • Relationship between engine load, speed, and fuel quantity • Difference between quantity, timing, and distribution of fuel

💭 Think About

• Ask yourself: which choice talks about measuring and controlling how much fuel is sent, rather than when or where it is sent? • Look at each option and decide: is this mainly about quantity control, time of injection, or how the spray spreads in the cylinder? • Consider what must be true on a multi‑cylinder engine so that it runs smoothly and each cylinder produces similar power.

✅ Before You Answer

• Identify which answer focuses on fuel quantity per power stroke rather than timing or spray pattern • Check which choice directly relates metering to engine load (more load = more fuel, less load = less fuel) • Eliminate any options that mainly describe injection timing or fuel atomization/distribution instead of quantity measurement