QUESTIONS AND CORRECT ANSWERS
What are several considerations when planning a dive? - CORRECT ANSWERS 1. Bottom
time
2. Preplanning
3. Equipment
4. Environmental Conditions
5. Diver Protection
6. Emergency Assistance
7. Weather
8. ORM
9. Collect and analyze data.
What data is required for all diving operations? - CORRECT ANSWERS Surface Conditions.
Underwater Conditions
Equipment and Personnel resources
Assistance and Emergency
What are several types of Currents? - CORRECT ANSWERS River or Major ocean currents
Ebb Tides
Undertow or Rip Current
Wind-Generated Surface Current
A diver in MK-21/KM-37 can usually work in what level of current without difficulty? - CORRECT
ANSWERS A diver in MK-21/KM-37 can usually work in currents up to 1.5 knots without
difficulty.
, A diver in MK-21/KM-37 equipped with additional weight may be able to work in currents up to
____? - CORRECT ANSWERS A diver with additional weight may be able to work in
currents up to 2.5 knots.
A SCUBA diver may be severely handicapped in currents above ______? - CORRECT
ANSWERS A SCUBA diver may be unable to work in currents greater than 1 knot.
What is required for a SCUBA diver if the current is greater than 1 knot? - CORRECT
ANSWERS If current is greater than 1 knot, as a minimum the diver must be tended or
have a witness float.
What factors should a supervisor consider when selecting the diving technique (UBA)? -
CORRECT ANSWERS A supervisor should consider environmental conditions, the work to
be performed, depth and duration, as well as time constraints.
What are the five basic criteria for a Diver's Air Supply? - CORRECT ANSWERS 1. Purity
Standards
2. Sufficient flow to diver
3. Adequate over-bottom pressure
4. Adequate air supply to support depth and duration
5. A secondary air supply shall be available for SSD.
What are the pre-dive responsibilities? - CORRECT ANSWERS 1. Dive supervisor shall be
included in preparing operational plans.
2. The Dive Sup shall consider contingencies, determine equipment requirements and
assignments, and establish back-up requirements for the operation.
3. Dive Sup shall be familiar with all divers on the team
4. Dive Sup inspects all equipment and conducts pre-dive briefings of personnel.