Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases substantially when an arc flash occurs within an industrial circuit breaker panel?
A)Insulation material dielectric breakdown✓
B)Reduced apparent power factor
C)Increased frequency harmonic distortion
D)Elevated ground loop impedance
💡 Explanation
Dielectric breakdown risk increases during an arc flash because the extreme heat ionizes the air, creating a conductive plasma that decreases the insulation's resistance. Therefore, components can fail rather than containing over-voltage, whereas options B, C, and D are unrelated immediate consequences.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which kinematic error results when asymmetric link parameters exist within robot's DH table?
- Which risk increases when rapid cycling of a hydraulic solenoid valve exceeds its rated frequency?
- Suppose a transient voltage spike exceeds a Zener diode's reverse breakdown voltage. Which outcome relating to component failure occurs because of this?
- Which risk increases when dissimilar metals connect galvanically in reinforced concrete columns submerged in seawater?
- Which risk increases when a hydraulic turbine operates below its Net Positive Suction Head (NPSH) requirement?
- Which outcome occurs when the grinding wheel's coolant supply fails during precision camshaft lobe grinding?