Which term describes an unintended low-resistance electrical path?

• A. Ground Fault
• B. Short Circuit
• C. Bearing Failure
• D. Safety First

Answer: (B)

An unintended low-resistance electrical path allows a large amount of current to flow through an abnormal route. That situation is a short circuit, which happens when conductors touch or insulation fails, creating a direct connection between points of different voltage. The resulting surge can overheat wires, blow fuses, or trip breakers, and can lead to damage or fire if not interrupted by protective devices. Ground fault is related, since it also involves current finding a path to earth, but the general term for an unintended low-resistance path is short circuit. Bearing failure is mechanical, and “Safety First” is a safety principle rather than a fault type.