Which of the following statements is correct concerning the connecting rod and piston assembly shown in the illustration? MO-0011

Correct Answer: Option D — All of the above.

Marine-duty trunk and crosshead pistons frequently incorporate thermal heat dams, free-to-rotate carrier thrust washers for load distribution, and securely fastened or articulated piston pin arrangements. Combining these engineering features prevents localized thermal distortion, reduces wear, and optimizes mechanical stress distribution across the entire assembly.