PADI Divemaster Certification Practice Exam

What is a key disadvantage of using dive tables instead of dive computers?

1. Dive tables provide more accurate depth readings.

2. Dive tables require divers to plan their dives before entering the water.

3. Dive tables do not offer any analysis of past dives.

4. Dive tables are more expensive than computers.

The correct answer is: Dive tables require divers to plan their dives before entering the water.

The key disadvantage of using dive tables compared to dive computers lies in the requirement for divers to plan their dives before entering the water. Dive tables are primarily used for planning and require the diver to estimate their depth and time in advance based on specific parameters. This can be cumbersome and may not account for changes in conditions or diver behavior once in the water. By contrast, dive computers automatically track the diver’s depth, time, and other factors in real-time, allowing for more flexibility during a dive. This adaptability makes dive computers more practical for divers who may need to adjust their plans based on real-time data and unexpected circumstances. In addition, dive tables generally do not provide a continuous readout of depth or time while diving, which is another point of contrast to dive computers that continuously monitor these parameters, helping to ensure safety during the dive.