Question

Circuit Breaker Device which can be used in place of fuse in domestic electric wiring is called ______.

Options

• CBD

• DCB

• MCD

• MCB

Answer 1

Circuit Breaker Device which can be used in place of fuse in domestic electric wiring is called MCB.

Explanation:

MCB stands for Miniature Circuit Breaker, which is a modern safety device used in household wiring to replace traditional fuses. It automatically switches off the electrical circuit during an overload or short circuit condition to prevent damage and fire. Unlike a fuse that melts and must be replaced, an MCB can be reset (switched back on) manually once the fault is cleared.