Computer · Electrical Systems and Safety
Which of the following statements regarding electrical safety devices is FALSE?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A Miniature Circuit Breaker (MCB) protects electrical circuits from overcurrent caused by overloads or short circuits.
- 2An Earth Leakage Circuit Breaker (ELCB) is a safety device used to detect small stray voltages on the metal enclosures of electrical equipment.
- 3Both MCB and ELCB safety devices are electrically connected in parallel to the appliance they protect.✓
- 4A Residual Current Circuit Breaker (RCCB) operates by sensing the imbalance between phase and neutral currents to prevent shocks.
Correct answer
Both MCB and ELCB safety devices are electrically connected in parallel to the appliance they protect.
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