You are driving a motor vehicle with a manual gearbox. What style of driving results in higher fuel consumption within a built-up area?

You answered correctly by choosing both accelerating heavily and driving at high engine speed as factors that lead to higher fuel consumption in built-up areas. Heavy acceleration uses more fuel because the engine needs to work harder. Driving at high engine speeds (high RPM) also increases fuel use, as the engine burns more fuel to maintain those speeds. In general, driving smoothly, anticipating traffic, and using higher gears at lower speeds will help you save fuel. It's important to avoid sudden acceleration and prolonged operation at high engine speeds to keep fuel consumption low.