Which type of wire is generally more flexible for applications in marine environments?

Stranded wire is designed with multiple small strands of metal woven together, which provides enhanced flexibility compared to solid core wire. This characteristic is particularly beneficial in marine environments, where vibrations, movement, and temperature changes can occur frequently. The flexibility of stranded wire allows it to bend and flex without breaking or experiencing stress, making it well-suited for dynamic applications on boats, such as connecting batteries, electronics, and various onboard systems.

In contrast, solid core wire, although it may be more efficient for certain static applications due to its conductivity, lacks the flexibility needed for environments that require wire to move or bend. Twisted pair wire is generally used for data transmission rather than for power applications, and while coaxial wire has specific uses, particularly in antennas and data transmission, it does not offer the same level of flexibility needed for most onboard wiring applications. Thus, stranded wire emerges as the best choice for its combination of flexibility and durability in marine settings.