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...
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Fordenken. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
