Engine 2014: Electricity

1. A Each receptacle type may use the same plug configuration, but care must be exercised in plugging in cords.
2. B The 110 VAC and 220 VAC outlets may have the same plug configuration, whereas the 110 VDC outlets must be different to preclude plugging a cord into an outlet of incompatible power type.
3. C The 110 VAC and 110 VDC outlets may have the same plug configuration, whereas the 220 VAC outlets must be different to preclude plugging a cord into an outlet of incompatible voltage.
4. D Each receptacle type must have a different plug configuration to preclude plugging a cord into an outlet of incompatible voltage or type of power.

Tip: press A-D to answer