Engine 2014: Electricity

1. A The compressor drive motor will immediately start even without pushing the start button.
2. B The compressor drive motor will start after pushing the start button only if the pressure is relatively low.
3. C The compressor drive motor will start after pushing the start button regardless of the pressure.
4. D The compressor drive motor will jog briefly after pushing the start button.

Tip: press A-D to answer