| A | B |
|---|
| The power rating of a circuit protected by a 16A M.C.B. and a 230V supply has a power rating of | 3680W |
| Entries used to install cables in a metal backing box must have a | Grommet fitted |
| The colour of the PVC sleeving used on the c.p.c. of a ring power circuit is | Green and Yellow |
| When a 30A power ring circuit is installed the maximun area it can supply is | 100 metre squared |
| Extra socket outlets connected to existing socket outlets are known as | Spurs |
| The switch in a power socket outlet disconnects both the phase and neutral at the same time this type of switch is known as a | Double Pole Switch |
| A switch that disconnects the Live phase only is known as a | Single Pole Switch |
| Socket outlets installed outside in a garage must be protected by a | Residual Current Circuit Breaker |
| To calculate the power rating of an appliance this is found by using the formula | Volts multiplied by Amps |
| To calculate the current rating of an appliance this is found by using the formula | Watts divided by Voltage |
