Which risk increases when a hydroelectric generator's over-speed protection fails during a penstock blockage?

💡 Explanation

The risk of runaway speed increases massively because without the over-speed protection activating the mechanical circuit breaker, the turbine accelerates unchecked due to the water flow, therefore exploding mechanically, rather than controlling the rotational speed.

• Which outcome occurs when a telecommunications satellite's onboard processor experiences bit flips?
• Which consequence results when refrigerant subcooling is lost prior to the compressor's scroll pump in an HVAC system?
• Which outcome occurs when PLC timing errors disrupt a robot executing inverse kinematics?
• Which consequence results when rapid temperature changes create mechanical oscillations in the active circuit of a high-power laser?
• Which consequence results when reverse leakage current exceeds thermal runaway limits in a power diode?
• Which outcome occurs when metal oxidation undermines a transformer's bolted ground circuit?