Name: Score:
67 Multiple choice questions
Term 1 of 67
What is the first color absorbed underwater?
Surface and dive Modes
Air has odor or taste
Into/against
RED (followed by OYGBIV)
Term 2 of 67
Name the steps of the buddy check
Self
Contained
Underwater
Breathing
Apparatus
ABCs
Air
Buoyancy
Computer
Dive Gear
Enter water
Whistle/horn
Bright-colored lift bag
Depth, dive time, ascent rate, surface interval time
,Term 3 of 67
How much larger and closer do objects appear under water and why?
Look around for no more than 1 minute then ascend to surface; if not at surface call for help
33% larger, 25% closer
Light bends in the air-space between the lens and your eyes.
Surface mode shows depths ranging every ten feet with the no-stop time limits adjusted for
current depth
Immediately stop descending and ascend a few feet until you are shallow enough not to
feel any discomfort
Term 4 of 67
What does BCD stand for?
Buoyancy
Compensator
Device
Surface And Dive Modes
Decompression Sickness
Blink And Ascent Alarm
Term 5 of 67
What should you do if you suddenly feel sick and develop a headache during a scuba dive?
Dive deeper to relieve the headache
Continue diving and monitor symptoms
Switch to a different breathing apparatus
Abort dive and controlled ascent. Breathe fresh air or oxygen
, Term 6 of 67
What is the depth threshold where most scuba divers generally begin to be affected by nitrogen
narcosis?
20 msw/66fsw
50 msw/164fsw
30 msw/100fsw
40 msw/130fsw
Term 7 of 67
What is the main difference between a wet suit and a dry suit?
Dry suit is designed with an integrated inflation system to keep body completely out of
contact with water. Dry suits keep divers completely dry for use in cold water (below 50
degrees)
Jellyfish or marine life which account for a temporary, painful sting. WATCH OUT FOR
ALLERGIC REACTIONS.
First stage - attaches to tank valve and reduces the high-pressure air to intermediate
pressure
Second stage - delivers air at ambient pressure directly to the diver
Defense
Term 8 of 67
What should you do if you experience a reverse block upon ascending?
Continue ascending quickly to relieve pressure
Descend a couple feet and stay there until air has time to vent
Switch to a different tank
Ignore the symptoms and keep ascending
67 Multiple choice questions
Term 1 of 67
What is the first color absorbed underwater?
Surface and dive Modes
Air has odor or taste
Into/against
RED (followed by OYGBIV)
Term 2 of 67
Name the steps of the buddy check
Self
Contained
Underwater
Breathing
Apparatus
ABCs
Air
Buoyancy
Computer
Dive Gear
Enter water
Whistle/horn
Bright-colored lift bag
Depth, dive time, ascent rate, surface interval time
,Term 3 of 67
How much larger and closer do objects appear under water and why?
Look around for no more than 1 minute then ascend to surface; if not at surface call for help
33% larger, 25% closer
Light bends in the air-space between the lens and your eyes.
Surface mode shows depths ranging every ten feet with the no-stop time limits adjusted for
current depth
Immediately stop descending and ascend a few feet until you are shallow enough not to
feel any discomfort
Term 4 of 67
What does BCD stand for?
Buoyancy
Compensator
Device
Surface And Dive Modes
Decompression Sickness
Blink And Ascent Alarm
Term 5 of 67
What should you do if you suddenly feel sick and develop a headache during a scuba dive?
Dive deeper to relieve the headache
Continue diving and monitor symptoms
Switch to a different breathing apparatus
Abort dive and controlled ascent. Breathe fresh air or oxygen
, Term 6 of 67
What is the depth threshold where most scuba divers generally begin to be affected by nitrogen
narcosis?
20 msw/66fsw
50 msw/164fsw
30 msw/100fsw
40 msw/130fsw
Term 7 of 67
What is the main difference between a wet suit and a dry suit?
Dry suit is designed with an integrated inflation system to keep body completely out of
contact with water. Dry suits keep divers completely dry for use in cold water (below 50
degrees)
Jellyfish or marine life which account for a temporary, painful sting. WATCH OUT FOR
ALLERGIC REACTIONS.
First stage - attaches to tank valve and reduces the high-pressure air to intermediate
pressure
Second stage - delivers air at ambient pressure directly to the diver
Defense
Term 8 of 67
What should you do if you experience a reverse block upon ascending?
Continue ascending quickly to relieve pressure
Descend a couple feet and stay there until air has time to vent
Switch to a different tank
Ignore the symptoms and keep ascending
