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Engine_2014 : Motor Plants and Auxiliary Boilers - 1481/2614
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Which of the following design features will reduce the possibility of overheating the top compression rings of a cast iron piston?
A) The top ring is located as close to the piston rim as possible.
B) The inside surface of the piston head is rounded into the ring belt.
C) A nickel-bearing insert is cast into the top ring groove.
D) A heat dam design is sometimes used in the piston head.
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