In smooth logs, what does BT stand for?

In smooth logs, what does BT stand for?

• A. Break Time
• B. Bottom Time
• C. Base Time
• D. Battery Time

Answer: (B)

Bottom Time is the duration you spend at depth during a dive. It begins when you reach the bottom and ends when you start your ascent. This measurement is what dictates how long nitrogen is being absorbed at depth and helps determine no-decompression limits, making it a critical figure for dive planning and logging. The other options refer to things like breaks, base measures, or battery life, which aren’t used to describe the time spent at depth.

Bottom Time is the duration you spend at depth during a dive. It begins when you reach the bottom and ends when you start your ascent. This measurement is what dictates how long nitrogen is being absorbed at depth and helps determine no-decompression limits, making it a critical figure for dive planning and logging. The other options refer to things like breaks, base measures, or battery life, which aren’t used to describe the time spent at depth.