PADI Divemaster Certification Practice Exam

In what scenario is it recommended to avoid using a DSMB or float?

1. When diving in wide open ocean

2. When there are strong currents that may entangle the line

3. When diving with several experienced buddies

4. When the dive is shallow

The correct answer is: When there are strong currents that may entangle the line

Using a Dive Safety Marker Buoy (DSMB) or float is generally advised in most situations, as it enhances safety by increasing visibility and signaling to surface support. However, strong currents present a unique threat that can complicate the use of a DSMB. In scenarios with significant currents, deploying a DSMB can lead to entanglement, where the line connected to the buoy becomes caught or snagged on nearby structures, underwater features, or even marine life. This situation can create hazards for divers, including becoming separated from the buoy, prolonged ascents, or even potential injuries. Therefore, in strong currents, it's prudent to avoid deploying a DSMB to ensure the safety and control of the dive.