Which of the following statements is true regarding the shapes of holes for fluid-tight rivets?

The assertion that the holes for fluid-tight rivets are typically round with specific dimensions is accurate because fluid-tight rivets are designed to create a seal that prevents the leakage of fluids or gases. The round shape is critical for ensuring a uniform distribution of stress around the rivet when it is installed. This shape allows for a proper fit and ensures that the rivet can be compressed adequately to create a tight seal.

Specific dimensions are also essential, as they relate to the size of the rivet being used; accurate hole sizes are necessary to achieve optimal mechanical properties and sealing capabilities. A precise fit helps maintain the integrity of the joint, which is crucial in aerospace applications where reliability and safety are paramount. Any deviation from the specified hole shape or dimensions could result in a compromised seal, leading to potential safety issues or failures in the structure.