Engine 2014: Motor Plants and Auxiliary Boilers

1. A They are bimetallic elements sensing temperature differentials corresponding to pressure changes.
2. B They consist of a bellows assembly, linked with a snap action switch, through a pressure adjusting mechanism.
3. C They automatically relieve excessive steam pressure by acting as a pilot to the safety valve.
4. D They automatically restart the burner sequence via the high water level signal.

Tip: press A-D to answer