Final answer:
A mandatory revocation of a driver's license usually occurs when the driver is at fault and convicted of a serious traffic violation like vehicular manslaughter, DUI, or hit-and-run involving death or serious injury, depending on state laws.
Step-by-step explanation:
The question asks when a mandatory revocation of a driver's license will result from a motor vehicle crash that causes death or personal injury. This issue touches upon traffic laws which can vary widely by jurisdiction. In general, mandatory revocation of a driver's license may occur when the driver is at fault and has been convicted of a serious traffic violation such as vehicular manslaughter, DUI, or hit-and-run leading to injury or death. Specific consequences and procedures depend on state laws and the severity of the incident.