Proper maintenance of instruments includes ________ and ________.

rinsing after each diving day, having them serviced once per year

dish soap, filtered water rinses.

oil checks, visual inspections.

visual inspections, and certified inspections.

Why should you rinse the inside of your BC?

To remove salt crystals and to prevent damage to the inside of your BC.

So it's not sticky next time you use it.

So it will stay soft and pliable.

To make sure little animals that got in there are re-released into the water.

The two essential features found on all BCs are ________ and ________.

overinflation valve, oral inflator.

flotation pockets, release valve.

velco sealed pockets for keys, weight pockets.

What is the most likely use for a dive knife underwater?

To cut off weight belt in case of emergency.

Self-defense against aggressive animals.

Cut long hair in case of tangle.

When you fly a dive flag, you must ________ and ________.

dive near the flag, only display the flag when divers are in the water.

be in a boat traffic area, have at least one diver in the water.

display the flag when divers are in the water, and have an emergency.

have an active emergency and want Coast Guard assistance.

You should record all dives in your logbook because ________ and ________.

you might be required to provide proof of experience, documentation of experience for leadership training.

you'll need it for certifications, to keep your liscence active.

to rent equipment, to prove your certification hasn't expiered.

Navy Seals need it, the FAA likes it too.

Give one example of when it is appropriate to use a giant stride.

Diving off a boat with a platform.

Four major factors that affect your buoyancy are ________, ________, ________, and ________.

weight you wear, air in your BC, air in your lungs, objects you are carrying, type of diving suit, and air in your cylinder.

air in your lungs, what you ate for breakfast, total body mass index, and water you drank in the last 24 hours.

BC inflation, dive suit style, air in your tank, and fin type.

bone density, fat to muscle ratio, BC inflation, and weight belt.

What are three steps you should take to prepare for a descent?

Exchange snorkel for regulator, note time that your head leaves the surface, deflate your BC, equalize your ears, and exhale.

Scan the horizon, check your regulator, deflate your BC.

Clear a path in a circle, locate your buddy, pull your arms over your head.

Take equipment readings, note the time your head leaves the surface, deflate your BC.

When is it appropriate to choose a buoyant emergency ascent?

when no source of air is available and you are deeper than 40 feet

when no source of air is available and you are less than 30 feet deep

The four ways of communicating under water are ________, ________, ________, and ________.

hand signals, slate, tank tapping, and touch.

waving, blinking, dancing, and tank tapping.

ASL, touch, high pitched squeaks and pointing.

blinking, ASL, tank tapping, or touch.

The nitrogen in the air breathed at any depth:

Has an effect on the divers ability to process oyxgen.

Effects the diver’s respitory system.

The steps to the recommended lost buddy plan are:

Get vertical, do a 360 degree turn, look for your buddy bubbles, rise about ten feet, do another 360 degree turn looking for buddy bubbles, ascend slowly to the surface, note your position, return the shore, and wait.

tap on your tank and scan above and below

rise ten feet and look for bubbles

ascend to the surface and scan below

Lung expansion injuries are caused by ________ or _______

holding your breath, not breathing properly

holding your breath, breathing too deep

blowing bubbles, holding your breath

holding your breath, a panic attack

Diving with too much weight on your weight belt is OK, just use a larger BC.

True, the BC will provide lift to overcome the weight belt.

False, basic divers should be neutral at the surface.

True, the divers trim is much better.

False, the diver needs to have positive buoyancy at depth.

To maintain neutral buoyancy during descent, a diver should:

Remove lead weights from the belt.

Eat lots of beans the night before and release gas when needed.

Which of the following DOES NOT affect buoyancy?

The divers surface air consumption rate.

The amount of weight worn on the belt.

A proper breathing pattern for a scuba diver should be:

Faster and shallower than normal.

The effects of nitrogen narcosis can be relieved by:

Slowly ascending to a shallower depth.

Buddy breathing using an octopus regulator.

Resting and breathing oxygen after each dive.

Going to a decompression chamber.

You should begin to equalize your ears as soon as you feel pain.

False, equalize early and often before you feel pain.

True, to ascend further will cause ear problems.

False, pain in your ears while SCUBA diving is normal.

True, the discomfort and pain is the signal to equalize your ears.

What causes bubble formation in the blood during ascent?

Ascending faster than 30 feet per minute.

The 80% Nitrogen breathed in the air at the surface.

Ascending without venting the BC.

Ascending slower that 30 feet minute.

A diver who ignores minor ear pain while descending risks:

Ruptured ear drum AND Hearing loss.

There is no risk, minor ear pain is normal.

Depth has a significant effect on air consumption.

True, the diver uses more air at depth than at the surface.

False, the divers air consumption depends on the size of the tank.

True, the diver will use less air at depth than at the surface.

False, air consumption is the same at every depth.

Diving buddy teams should always:

Agree on a leader and have a lost buddy plan.

Log their dives in a diving log.

One of the most important things to remember about SCUBA diving is:

Feeding fish is like feeding chipmunks in National parks.

How challenging it is to get in and out of your wet suit.

If you are not feeling well but medication removes your symptoms, you should not because

medication only masks the symptoms of your illness, it does not cure illness. The illness will affect your physiology underwater and could be hazardous.

some medications cause drowsiness making driving or operating heavy equipment dangerous.

muddled thinking is a recipe for success.

risky behavior results in long-term rewards.

What is the correct equasion for calculating surface air concymption tate (SAC) at sea water depth?

Imperial SAC Rate Formula:[ {(PSI Start - PSI End) x 33} ÷ (Depth + 33)] ÷ Time in Minutes = SAC Rate in PSI/min

You don't use SAC to calculate but RMV instead.

Use a dive computer or watch to determine the total dive time in minutes.

Tank Volume in Cubic Feet ÷ Working Pressure in PSI = Tank Conversion Factor

What is Residual Nitrogen?

Excess nitrogen remains in body tissues after diving.

Residue of nitrogen left in a scuba cylender.

Nitrogen that must be mixed with air.

The last 500 lbs of air in the tank used for safety

SCUBA Open Water Test Practice

Other Sciences, Physics, Physical Ed

5th Grade - University

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50 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

You should not dive when:

You are congested.

You are feeling unwell.

Your mind is impaired.

All of them.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The three main types of BCs are , , and .

back flotation, vest style, and horseshoe rings.

horse collars, life preserver rings, and inflatable rafts.

water wings, ankle pillows, and waist rings.

jacket style, back flotation, and horse collars.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The two types of metal used to make scuba cylinders are

Chrome and Copper

Aluminum and Iron

Steel and Silver

Aluminum and Steel

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A Scuba cylinder should be filled with:

Filtered air only

Nitrogen, oxygen, carbon dDioxide

Pure oxygen only

Helium, oxygen and filtered air

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Scuba cylinders must have hydrostatic testing done a minimum of every ________ years.

5 years

2 years

4 years

year

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Scuba cylinders need to be visually inspected internally at least every ________.

5 years

2 years

year

10 years

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A _________ calculates your remaining allowable bottom time while diving.

secret diver technology

submersible calculator

SCUBA watch

dive computer and / or submersible pressure gage

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SCUBA Open Water Test Practice

You should not dive when:

The three main types of BCs are ________, ________, and ________.

The two types of metal used to make scuba cylinders are

A Scuba cylinder should be filled with:

Scuba cylinders must have hydrostatic testing done a minimum of every ________ years.

Scuba cylinders need to be visually inspected internally at least every ________.

A _________ calculates your remaining allowable bottom time while diving.

Proper maintenance of instruments includes ________ and ________.

The three main types of BCs are ________, ________, and ________.

Why should you rinse the inside of your BC?

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The three main types of BCs are , , and .

Proper maintenance of instruments includes and .

The three main types of BCs are , , and .