Engine: Electricity

1. A non-reversing squirrel cage induction motor with reduced voltage primary reactor starting
2. B reversing squirrel cage induction motor with reduced voltage autotransformer starting
3. C reversing squirrel cage induction motor with across-the-line starting
4. D non-reversing squirrel cage induction motor with reduced voltage autotransformer starting

Tip: press A-D to answer