Engine 2014: Motor Plants and Auxiliary Boilers

1. A back pressure regulation resulting in more complete combustion at high firing rates
2. B oil supply pressure not having to be reduced at low loads to the point where poor atomization occurs
3. C return flow atomizer being designed for best combustion at  low firing rates
4. D rotational motion imparted by the tangential slots being greater in the return flow atomizer

Tip: press A-D to answer