An alloy of lead and tin is used as the material of the fuse wire because its melting point is …………… and specific resistance is …………… ,

1. high, high
2. low, high
3. low, low
4. high, low

The full form of MCB is :

1. miniature current breaker
2. miniature current board
3. miniature circuit breaker
4. miniature circuit board

A switch must be connected in the:

1. live wire
2. neutral wire
3. earth wire
4. either earth or neutral wire

The colour coding of live wire in the new international convention is :

1. red
2. brown
3. black
4. green