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SDI: open water-exam questions with correct answers

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CH 2 : What is the most important rule in scuba diving? never hold your breath CH 4 : Describe from start to finish the steps to disassembling your scuba system - remove accessories and weights - decompress the system : turn the valve knob completely clockwise, decompress the second gauge...

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  • October 7, 2023
  • 10
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • sdi open water

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  • SDI
  • SDI

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SDI: open water
CH 2 : What is the most important rule in scuba diving?correct answernever hold your breath
CH 4 : Describe from start to finish the steps to disassembling your scuba systemcorrect answer- remove accessories and weights - decompress the system : turn the valve knob completely clockwise, decompress the second gauges (purge button or auto inflator button to vent air remaining in the hoses)
- detach the LP hose from the inflator assembly by pulling the collar back on the quick disconnect , unscrew the yoke knob until the first stage can slip off the top of the valve
- undo the straps and remove the BCD from the cylinder - rinse off gear and fill and dump BCD
CH 5 : Describe what to do if you exceed the no-deco time registered on your computercorrect answer- ascend to the surface before you run out of air - when surfaced , establish positive buoyancy and signal for emergency assistance - advise the dive supervisor of your omitted decompression and begin first aid procedures for decompression sickness - breathe oxygen for at least 30 mins and watch for signs and symptoms of decompression sickness for at
least 24 hours
- seek immediate medical attention if any symptoms develop - do not dive or fly or go to higher elevations for at least 24 hours
CH 5 : What elements should you and your buddy agree on before the dive?correct answer- dive time
- maximum depth - minimum cylinder pressure
- emergency procedures
CH 5 : Define risk managementcorrect answer- a means of preventing problems and planning a response to any emergency that arises - involves planning ahead , employing good diving practices and knowing what to do before an emergency
CH 5 : Why should you avoid consuming drugs or alcohol prior to a dive?correct answerit greatly increases the risk of decompression sickness in divers
CH 5 : What is the emergency procedure for suspected decompression sickness?correct answer1: move the afflicted diver out of danger
2: activate the Emergency Medial System (EMS) 3: monitor life support signs (pulse and respiration) and provide CPR if necessary 4: provide 100% oxygen via demand regulator if the diver is breathing 5: evacuation if necessary
CH 5 : What should you do if you become entangled underwater?correct answer- relax, do not struggle to free yourself , moving around results in further entanglement - figure out how to untangle carefully or carefully use knife to cut the line away, cut away from body and gear
CH 5 : Describe the procedure recommended for a safety stopcorrect answer- Should be conducted between 3 and 6 meters (10 and 20 feet) for three to five minutes before coming up to the surface - a safety stop is recommended on any dive up to 30 meters (100 feet) - for dives over 30 meters (100 feet), a saftey stop is mandatory
CH 5 : When planning a repetitive dive, the ___________ dive should be made firstcorrect answerdeepest
CH 5 : Describe what to do if you and your buddy become separated during a divecorrect answer- look around the immediate area for one minute, during that time look around the bottom then ascend a few feet to look for rising bubbles
- tap on your cylinder and listen for a reply - if reunited underwater , check each other's air supplies and remaining no-stop time to decide how to continue with the dive

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