Question 331Motor Plants - Assistant Engineer

The correct answer is B) exhaust temperature. The amount of load that can be put on a modern marine diesel engine is limited by the exhaust temperature. Diesel engines generate high temperatures in the exhaust system, and exceeding the recommended exhaust temperature can damage the engine components. The engine's control systems monitor the exhaust temperature and will limit the engine load to prevent the exhaust from getting too hot. The other options are incorrect because they do not directly limit the engine load. The governor sensitivity controls the engine speed, the fuel injection pressure affects combustion, and the camshaft speed influences valve timing, but these factors do not directly limit the engine load like the exhaust temperature.