Engine 2014: Electricity

1. A The lamp will flash on then off for one cycle as long as the input contacts are closed.
2. B The lamp will flash on then off for one cycle after a momentary closure of the input contacts, followed by a re-opening of the contacts.
3. C The lamp will continue to flash on and off repeatedly after a momentary closure of the input contacts, followed by a re-opening of the contacts.
4. D The lamp will continue to flash on and off repeatedly as long as the input contacts are closed.

Tip: press A-D to answer