Padi scuba diving Study guides, Class notes & Summaries

PADI Scuba Diving - Section 4 Practice Exam Questions 2024. What are five uses for a surface float? - correct answer Resting, marking a dive site, assisting another diver, carrying things, and supporting a dive flag What do you do to avoid entanglement in a line connected to a surface float? - correct answer carry the line on. reel or line caddie Why should you use a dive flag when diving? - correct answer to warn off boaters local law may require it How close should you stay to a d...

PADI Scuba Diving - Section 2 Review Guide 2024. How does looking at something underwater affect its apparent size? - correct answer Underwater things sometimes appear closer than they really are. How does water affect light intensity and color? - correct answer Light travels at a different speed in water so it shifts it course (refraction) which magnified everything about 33% less light remains as depth increases and the water absorbs each color How does being underwater affect hearin...

PADI Scuba Divinginflate my BCD, switch to my snorkel and signal "okay" to the - correct answer divemaster and buddy At 10 metres/33 feet you're _____ bar/ata of total pressure and the air density is ___ times as great as at the surface. - correct answer 2 As I descend, I need to equalize air spaces. Which of the following are accepted ways of equalizing my ears? (choose all that apply) - correct answer Block my noses and attempt to gently blow through it. Shallow and wiggle the jaw ...

inflate my BCD, switch to my snorkel and signal "okay" to the - divemaster and buddy At 10 metres/33 feet you're _____ bar/ata of total pressure and the air density is ___ times as great as at the surface. - 2 As I descend, I need to equalize air spaces. Which of the following are accepted ways of equalizing my ears? (choose all that apply) - Block my noses and attempt to gently blow through it. Shallow and wiggle the jaw from side to side. During a descent, I try to equalize but dis...

PADI Scuba Diving - Section 4What are five uses for a surface float? - correct answer Resting, marking a dive site, assisting another diver, carrying things, and supporting a dive flag What do you do to avoid entanglement in a line connected to a surface float? - correct answer carry the line on. reel or line caddie Why should you use a dive flag when diving? - correct answer to warn off boaters local law may require it How close should you stay to a dive flag, and how far should boa...

PADI Scuba Diving - Section 4What are five uses for a surface float? - correct answer Resting, marking a dive site, assisting another diver, carrying things, and supporting a dive flag What do you do to avoid entanglement in a line connected to a surface float? - correct answer carry the line on. reel or line caddie Why should you use a dive flag when diving? - correct answer to warn off boaters local law may require it How close should you stay to a dive flag, and how far should boa...

PADI Scuba Diving - Section 2How does looking at something underwater affect its apparent size? - correct answer Underwater things sometimes appear closer than they really are. How does water affect light intensity and color? - correct answer Light travels at a different speed in water so it shifts it course (refraction) which magnified everything about 33% less light remains as depth increases and the water absorbs each color How does being underwater affect hearing? - correct answer s...

Measurement for Pressure - correct answer Bar or Atmosphere (ATA) Depth / Pressure relationship under water - correct answer 0m/0ft = 1 bar/ata 10m/33ft = 2 bar/ata 20m/66ft = 3 bar/ata 30m/99ft = 4 bar/ata 40m/130ft is max rec dive limit Water Volume - correct answer Water does not compress so volume and density do not change with depth Air Vo...

What will buoyancy of an object be (positive, negative, neutral) if it displaces an amount of water: 1. more than its own weight 2. less than its own weight 3. equal to its own weight - correct answer 1. positive 2. negative 3. neutral Why is buoyancy control, both at the surface and underwater, one of the most important skills a diver can master? - correct answer Because it lets you control wh...

PADI Scuba Diving - Section 2How does looking at something underwater affect its apparent size? - correct answer Underwater things sometimes appear closer than they really are. How does water affect light intensity and color? - correct answer Light travels at a different speed in water so it shifts it course (refraction) which magnified everything about 33% less light remains as depth increases and the water absorbs each color How does being underwater affect hearing? - correct answer s...