PADI Night Diving question n answers graded A+ 2023 passed

PADI Night DivingWhat five aspects of night diving commonly appeal to divers? - correct answer 1) Natural curiosity 2) To observe aquatic organisms 3) A new look at old sites 4) More chances to dive 5) Colorful dives What three diving activities does diving at night enhance? - correct answer 1) Sightseeing 2) Underwater photography 3) Wreck diving What personal dive equipment should you wear during a night dive? - correct answer The same equipment you would during the day. What's the general recommendation regarding the use of new or unfamiliar equipment on a night dive? - correct answer Do not use new or unfamiliar equipment when night diving. Why should you carry two underwater lights while night diving? - correct answer Even the best lights can fail. What six features do you look for in a dive light? - correct answer 1) Rugged outer case 2) Dependable switches 3) O-ring seals 4) Comfortable handle or mount 5) Wrist lanyard 6) Fresh recharged batteries What are the advantages of rechargeable and non-rechargeable batteries in a dive light? - correct answer Rechargeable batteries are less expensive in the long run if you use the light a lot, and NiCad rechargeables hold their voltage until they need charging, so the light doesn't dim as the batteries weaken. Non-rechargeable batteries mean you don't have to worry about recharging when traveling. They also last longer than a charge does on rechargeable batteries, and they cost less initially. Why shouldn't you turn on some dive lights above water? - correct answer Due to their high heat the bulb quickly burns out, and can burn other components in the light. What are three uses for marker lights, and where do you attach them for those uses? - correct answer 1) On your snorkel or tank valve as orientations lights for your own and your buddy's location. 2) On the boat motor, antenna or buoy flag staff for marking boats/buoys. 3) At intervals along ascent/descent lines to mark them. How do you take care of a dive light? - correct answer Wash it thoroughly in fresh water. Remove batteries and store them separately. Clean, lubricate and inspect o-rings replacing as needed. Clean contacts with a pencil eraser. Store in a cool place, out of sunlight. How do you care for a flooded dive light? - correct answer Turn it off immediately and switch to your backup. As soon as possible open and drain it. Rinse the interior and exterior with fresh water then the interior and rechargeable batteries with isopropyl alcohol. Finish drying with a hair drier on mild heat. Return the light to the dive store or manufacturer for service. What should you consider in evaluating and choosing a potential night diving site? - correct answer Dive in places you know, when conditions are good. What are five environmental conditions that you should generally avoid when planning a night dive? - correct answer 1) Moderate to high surf 2) Moderate to strong currents 3) Bad visibility 4) Thick kelp, fishing nets or anything in which you could become entangled 5) Heavy surge 6) Overhead environments