Engine 2014: Steam Plants

1. A The second reduction worm gear always rotates whenever the turning gear motor is in operation; regardless of the position of the engaging handle.
2. B The turning gear motor coupling is engaged by the locking device.
3. C In order for the 'turning gear engaged' indicating lamp to  be lit, the switch must be of the normally closed type.
4. D The first reduction gear meshes directly with the bull gear.

Tip: press A-D to answer