What describes a hung start in engine terminology?

A hung start in engine terminology refers to a situation where an engine experiences a condition where the RPM remains low after ignition. In this scenario, after the ignition sequence begins, the expected increase in engine speed does not occur as anticipated. This can be caused by various factors, such as insufficient fuel flow or problems in the combustion process that prevent the engine from reaching normal operational speeds.

This definition is crucial for understanding engine performance and troubleshooting issues during startup. When the RPM does not increase, it suggests that there is an underlying issue that needs to be addressed to allow the engine to function correctly. Recognizing the indicators of a hung start can help operators take the necessary actions to rectify the situation and safely operate the engine.