Padi Scuba Final

unless there are laws that say differently, I should stay within _____ of my dive flag

15 meters/50 feet

I make two dives in one day an am flying home on a commercial plane. I should wait until my computer says I can fly or _____ hours, whichever is longer.

18

As a new PADI Open Water Diver, the recommended maximum depth is _______, or the actual depth I reached in training, if shallower. The maximum depth for all recreational scuba divers, even experienced divers, is _______.

18 meters/60 feet; 40 meter/130 feet

if my cylinder of air last 60 minutes while I am at the surface breathing normally, assuming all else in the same, how long will it last at 20 meters/66 feet breathing normally

20 minutes

Lung overexpansion injuries can be caused by...

Holding my breath while scuba diving

if my ears or sinuses hurt while I am descending (going down), it usually means

I am feeling a squeeze and need to equalize

When diving at an altitude above 300 meters/1000 feet

I need to follow special procedures and may need to set my computer for the altitude

If I'm diving in cold water or under strenuous conditions_____

I should add an extra safety margin and stay well within my computer's limits

if i am not able to equalize (clear) my body air spaces, it may be because I have

a cold, allergy or another medical problem

divers who act foolishly at depth due to gas narcosis may start acting normally again if they ____

ascend (go up) to a shallower depth

If my computer fails during a dive, I can use my backup computer to continue the dive. If I'm not wearing a backup, I should _______

ascend (go up), make a safety stop and end the dive

Although it shouldn't have happened, on a dive I fail to watch my SPG and run out of air. If my buddy is close by, my best option is to ______. Another option is to ______, if I'm in shallow water and the surface is closer than my buddy

ascend using my buddy's alternate air source/ make a controlled emergency swimming ascent

If I think I have decompression sickness I should_____

breathe 100 percent oxygen and contact emergency medical care

As I descend (go down), y wet suit will

compress (feel thinner) from water pressure, and I will lose buoyancy and warmth

I feel a mild current at the start of my dive. How should I begin this dive?

dive against or into the current

I am likely to increase the risk of decompression sickness (DCS) if I ____

dive while tires, cold, sick, thirsty or injured

When making computer assisted dives

each diver needs a personal computer

I know I am properly weighted for diving if I _____

float at eye level while holding a normal breath of air and with an empty BCD

If I accidentally exceed my computer's no stop limits, I should ______

follow the computers instructions

the difference between DIN valves and yoke valves in that DIN valves

having threaded openings to screw the regulator into

if my regulator begins to free flow (release air continuously) while underwater, I should _____

hold the regulator without sealing my mouth around the mouthpiece and "sip" the air I need as I ascend (go up)

I am most likely to become confused about which way is up or down ______

in midwater

the best place for me to position an alternate air source is

in the triangle area formed by my chin and the lower corners of my rib cage

It's important that I do not turn off a dive computer between dives because

it would lose memory of the previous dive and not calculate repetitive dives correctly

which of the following is part of proper care for my scuba cylinder

keep some air in it

When I look at things underwater they often seem _______ than they look on the surface

larger and/or nearer

how often should I take my scuba cylinder to be visually inspected by my dice center

once a year

the first step in using my dive computer is

reading the manufacturer's instructions

I should have cylinders filled at a dive center that I trust, not use our that tastes or smells bad, nor use air rom a compressor designed to fill tires. This is important to _____

reduce the risk of breathing contaminated air

If I were separated from my buddy, the general procedure is to _____

search for a minute and then go up to reunite with my buddy at the surface

A dicer at the surface is moving quickly and jerkily, has the mask off the face, the regulator/snorkel is out of the mouth, and the diver does not respond to directions. The diver is ______

showing signs of distress (trouble)

_______ travels faster in water than it does in air. This is why you cannot easily tell where it comes from.

sound

if I work too hard and find it difficult to breathe underwater, I should

stop all activity and rest, holding on to something for support if possible

I am close to my buddy and realize I am out of air. The best response is to

switch to my buddy's alternate air source

When planning a dive with a computer, I use the "plan" or "no stop scroll" mode to determine

the maximum allowable time limits for depths

There is an injured diver who is out of the water and is not responding to touch or my voice. The first thing to do would be ______

to check if the diver is breathing

Most injuries caused by aquatic animals happen because the animals are _____

trying to defend themselves

what the bottom is made of can cause big changes in

visibility (how far you can see underwater)