Engine_2014 : Motor Plants and Auxiliary Boilers - 743/2614
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| Many cast iron pistons are designed with heat dams, which serve to __________ . |
| A) keep piston crown temperatures elevated for smoother combustion |
| B) reduce the possibility of overheating the top compression ring |
| C) help retain the heat of compression to prevent ignition delay |
| D) help retain the heat of compression to prevent combustion knock |
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