Engine 2014: Electricity

1. A incorporates low voltage protection because the motor will stop when voltage falls below a certain value and automatically start when normal voltage resumes
2. B has no low voltage protection and the motor may be damaged if the voltage drops below a certain level
3. C incorporates low voltage protection because the motor will stop when voltage falls below a certain value but must be manually restarted when normal voltage resumes
4. D incorporates low voltage release because the motor will stop when voltage falls below a certain value and automatically start when normal voltage resumes

Tip: press A-D to answer