PADI Scuba Diving

At a minimum, I should have ____ visual and ____ audible signaling devices.

1, 1

I've just finished a single no stop dive with my buddy. We have not been diving in the past several days, and this is the only dive we make. Based on current recommendations, the minimum surface interval before we fly is

12 hours.

My buddy and I are planning a shore dive. We're descending onto a very gradual slope that begins at 5 metres/15 feet, so our descent and ascent will be a gradual part of swimming out and back underwater. We have similar cylinders filled to 200 bar/3000 psi. We plan: 50 bar/500 psi reserve. 20 bar/300 psi for our safety stop. To turn the dive when we've used one-third of the air available to use on the dive. This means we should head back when either of our SPGs read

157 bar/2270 psi

As a PADI Open Water Diver, I have been trained to a maximum depth of ________ (or the actual depth I reached, if shallower).

18 metres/60 feet

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

I need to use special altitude diving procedures when diving at an altitude greater than

300 metres/1000 feet.

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.

The most important rule in scuba diving is:

Breathe continuously and never hold my breath.

In helping an unresponsive diver, after you check for breathing and provide CPR as needed (once out of the water), which of the following has the highest priority?

Contact emergency medical care.

I have a bit of a cold but feel I can manage the dive well enough, so it is okay to dive.

False

I should never descend or ascend without a reference that I can follow or make contact with.

False

There is no way to use a DIN regulator on a yoke cylinder valve.

False

I'm planning to dive the following week and am checking my gear. I put my kit together and notice that my regulator seems to breathe harder than I remember. The appropriate action would be to:

Have it inspected and serviced as needed by a professional before using it.

My fin strap comes loose (later I discover that I didn't buckle it properly) while swimming at the surface in choppy waves. Which of the following habits would help me as I handle this problem? (choose all that apply)

Having my mask on and a mouthpiece in my mouth. Having enough air in my BCD for adequate buoyancy. Staying close to and signaling my buddy.

Training that expands and develops my skills in preventing and managing problems include: (choose all that apply)

PADI Rescue Diver. PADI Emergency Oxygen Provider. Emergency First Response Primary and Secondary Care courses.

During a dive, I swim hard to keep up with a fish that interests me, but shortly begin to feel like I can't get enough air. The correct action would be to:

Stop all activity and rest to restore proper deep, slow breathing.

During a descent, I try to equalize but discover I'm having trouble doing so. Which of the following is correct?

Stop my descent, signal my buddy, ascend slightly and try again.

If I feel discomfort in a body air space while ascending, the correct action is to:

Stop, descend slightly and give trapped air time to work its way out.

When planning our dive, my two buddies and I agreed that the general procedure for buddy separation would be adequate. If during the dive I find I am with one buddy but can't see the other, which of the following applies?

This is a buddy separation. Stay with the remaining buddy and search for no more than a minute, then reunite on the surface.

A dry suit keeps you warm by allowing your body to heat up a thin layer of air and a properly fitting wet suit keeps you warm by allowing your body to heat up a thin layer of water.

True

Any diver who has been unresponsive in or under water requires medical examination, even if the person seems fully recovered.

True

Depending upon my location, tides can cause significant changes to depth, currents and visibility, or they may have hardly any effect.

True

During a dive with my dive computer, my buddy and I will turn the dive based on the first limit we reach: remaining no stop time or air supply turn point.

True

Exceeding my computer or table's ascent rate may increase my risk of DCS.

True

Exertion from swimming hard, carrying equipment, climbing a ladder, long walks wearing gear, and heat stress from wearing an exposure suit in a hot climate can lead to heart attack in predisposed individuals. These factors can also cause problems for people with other cardiovascular conditions.

True

Failure to follow the most important rule in scuba diving can cause serious lung overexpansion (lung rupture) injuries, which in turn can cause paralysis and death.

True

I must use the same dive computer the entire day of diving, on all dives, and not share it with another diver.

True

I should not dive with a cold, nor use medications to dive with a cold.

True

I should stay well away from the boat propeller at all times, even when the engine isn't running.

True

If I am cold or exercise a lot during a dive, I may surface with more nitrogen than calculated by my dive computer or dive tables.

True

If I exceed established depth and time limits while diving and then surface, bubbles can form in my body tissues, causing decompression sickness.

True

It is important to master buoyancy control because it allows me to control whether I descend, float or am neutrally buoyant. I adjust my buoyancy frequently while diving.

True

It is recommended that pregnant women do not dive.

True

Medications can create problems when diving, so I should use prescription drugs and over-the-counter medications with caution. Any drug that affects my judgment, thinking and/or reactions should generally not be used before diving.

True

My buddy and I surface and the boat is not in sight, nor is there a float and we are beyond sight of shore. We should inflate our BCDs, deploy our surface signaling devices and stay together.

True

One reason it is important to be certified as a PADI Enriched Air Diver, or under the supervision of a PADI Enriched Air Instructor, before using enriched air nitrox is to avoid oxygen toxicity problems.

True

One reason it is important to have environmentally friendly dive skills is to preserve the natural beauty for other divers.

True

The three overall benefits of the buddy system are practicality, safety and fun.

True

To avoid contaminated air, I should have my cylinder filled only at reputable scuba air sources.

True

When assessing conditions, if there is anything that causes me significant anxiety or concern, if I can't address it, I should not dive. Ultimately, I am responsible for my own safety, so only I can make the final decision.

True

When planning to dive in an environment that is new to me, it is recommended that I get a local orientation from an experienced diver or professional who knows the procedures, hazards, points of interest and other factors unique to the environment.

True

My buddy and I are underwater within 6 metres/20 feet of our float with a locally-recognized dive flag. We hear a boat, and it sounds close and is getting closer.

We should stay deep enough to be safe. The boater may not see or recognize the flag.

After a dive, a diver has numbness, tingling and weakness in the arms. Are these possible signs/symptoms of DCS?

Yes

During a dive, I begin to have a headache, feel ill and dizzy. Are these possible symptoms of contaminated air?

Yes

Secondary factors thought to contribute to DCS include (choose all that apply)

age. cold. injuries. poor fitness/high body fat.

Before diving, I should refrain from using (choose all that apply)

alcohol. tobacco.

During a dive, my dive computer fails, and I'm not using a backup. I should

ascend, make a safety stop and end the dive.

As a prudent, conservative diver, the following are normal parts of my ascents: (choose all that apply)

ascending at 18 m/60 ft per minute (or slower if specified by my computer), stopping for 3 minutes at approximately 5 metres/15 feet adjusting my buoyancy in small amounts frequently

A no stop dive means I can, ________ the dive, ascend directly to the surface without stopping if necessary (although I would normally plan a safety stop).

at any time during

While underwater, I want to move efficiently by (choose all that apply)

being streamlined, swimming slowly and steadily, maintaining proper trim.

During an underwater cleanup, my buddy and I fill a large mesh utility bag with several kilograms/pounds of garbage. We should

carry the bag in our hands.

My buddies and I are wearing wet suits for exposure protection. As I descend, my buoyancy will ____________, so I should _______________ to control my buoyancy.

decrease, add air frequently to my BCD in small amounts

The two primary factors that influence how much nitrogen dissolves into my body tissues during a dive are ________ and _________.

depth, time

When diving with a computer, it is recommended that I (choose all that apply)

dive well within its limits. follow the most conservative computer - mine or my buddy's. start at the deepest point and progress shallower. ascend slowly and make a safety stop.

inflate my BCD, switch to my snorkel and signal "okay" to the

divemaster and buddy

I should equalize

early and often, before I feel discomfort.

The best entry is usually the

easiest one.

If I have only one cutting tool, the recommendation is that I wear it where __________ hand can reach it

either

At the end of a dive, my dive buddy's foot gets tangled in an abandoned fishing net. It takes five minutes to get free, but that delays our ascent making us exceed our no stop limit. This means that before we surface, we will have to make a(n) ___________ stop to return our nitrogen level from outside the accepted limits.

emergency decompression

During a dive, I can't stop shivering. The proper response would be to

exit the water immediately, dry off and seek warmth.

An object that is neutrally buoyant in fresh water will _______ in salt water.

float

One way to avoid disorientation while descending and ascending is to

follow a reference.

With an unresponsive diver underwater, the primary concern is ______________________. Once at the surface, besides establishing buoyancy and calling for help, the primary concern is ______________________.

getting the victim to the surface, checking for breathing and providing rescue breaths if the victim isn't breathing

Nearly all cases of decompression illness require treatment

in a recompression chamber.

Risks of diving beyond my training and experience limits include that (choose all that apply)

in some forms of diving, the hazards are not obvious. it can cause me to have a false sense of security. anxiety from doing so can distract me from noticing other problems.

While boat diving, my buddy and I finish our safety stop and ascend to the surface. When I reach the surface, I should

inflate my BCD, switch to my snorkel and signal "okay" to the divemaster.

My buddy and I accidentally find ourselves in a rip current. There are no special, local procedures, so we follow the generally recommended action of

inflating our BCDs and swimming parallel to shore.

I take a colorful fish identification slate with me while diving. Lookingat the slate underwater at 12 metres/40 feet, I would expect the slateto look (choose all that apply)

less colorful. larger/closer.

My buddy and I are diving from a boat in mild to moderate current. There is a line from the back of the boat where we'll enter, which leads to the mooring line at the front of the boat. The purpose of the line leading to the mooring line is to

let us pull ourselves to the mooring line.

My buddy and I want to travel in a straight line using a compass, I should point the _________ in our desired travel direction, then rotate the ___________ until the _______ is/are over the __________.

lubber line, bezel, index marks, magnetic north needle

Although it shouldn't have happened, on a dive at 10 metres/30 feet, I fail to watch my SPG and run out of air. I don't have a pony bottle or self-contained ascent bottle. My buddy is about 12 metres/40 feet away, and has an alternate second stage. My best option is probably to

make a Controlled Emergency Swimming Ascent.

At the surface, I have a problem. If I have not already done so, the first thing I should do is

make myself buoyant (inflate BCD and/or drop weights).

When boarding a dive boat, the divemaster asks me to fill my name in on the roll. The reason for this is to

make sure everyone's aboard after each dive.

My buddy and I remain neutrally buoyant and stay above the bottom enough to avoid contact. We do this because bottom contact (choose all that apply)

may injure or kill fragile aquatic life. tends to disturb the bottom and reduce the visibility. increases the risk of accidental cuts, scrapes or stings.

To help a diver with suspected decompression illness, I should (choose all that apply)

monitor the diver's breathing and provide CPR as necessary. contact emergency medical care. provide emergency oxygen.

Going to altitude after diving may be a problem because

most decompression models are based on surfacing at sea level.

The buddy system is _______________ responsibility.

my

I'm about to begin a descent with my buddy. Which of the following steps should I take before actually beginning my descent? (choose all that apply)

orient myself to something at the surface check that my computer is active confirm that my buddy is ready

A diver at the surface begins to struggle. He has wide, unseeing eyes and he has pushed off his mask. His BCD isn't inflated and he doesn't inflate it when the divemaster calls for him to do so. This diver is _______________. To help, I should first ______________.

out of control; make myself and the diver buoyant (inflate BCD/drop weights)

Which of the following can be a problem before the dive when diving on a warm day in a wet or dry suit?

overheating

On a standard underwater compass, the magnetic north needle

points to magnetic north.

While planning a shore dive, my dive buddy says it will be "no problem" diving in high surf that I've never been trained in nor have experience with. Looking at the surf, I don't think I am prepared for diving in it. My best response is to

politely refuse to dive and suggest an alternate location with no significant surf.

On a dive boat, after coming aboard two divers discover they accidentally surfaced without making an emergency decompression stop. They should __________, and not dive for at least 24 hours.

relax, breathe oxygen and check themselves for DCS symptoms

If I am planning a dive to 12 metres/40 feet, my no stop limit will be ______ than my no stop limit for a dive to 10 metres/30 feet.

shorter

My buddy and I are planning a dive to 18 metres/60 feet. We would expect our air supply to last ________ at 10 metres/33 feet, all else being the same.

shorter than

On a repetitive dive, for a given depth my no stop limits will be ______ those of the first dive.

shorter than

While diving, I begin to feel exhausted and air-starved because I have been swimming strenuously. I should

signal "stop" and rest.

During a dive, I feel I'm having trouble thinking clearly. I should

signal my buddy and ascend to a shallower depth.

As a new PADI Open Water Diver, I should refresh my dive skills with a PADI Scuba Review after ___________ of inactivity.

six months

During a dive, my buddy and I have to swim hard because of an unexpected current. If I were to begin to feel fatigued, have labored breathing, experience a feeling of suffocation or air starvation, and perhaps feel like I may panic, I should

stop all activity, signal my buddy and rest.

In an emergency decompression situation, I find I won't have enough air to complete all the required stop time. I should

stop as long as I can, but save enough air to surface and exit safely.

The primary considerations when choosing any piece of scuba gear are: (choose all that apply)

suitability, fit, comfort

My buddy and I get disoriented while boat diving. There is a mild current, and we surface away from the boat. We should ___________.If unable to reach the boat or too tired, we should _____________.

swim across the current to reach the trail line, become buoyant and signal the boat to pick us up.

My buddy and I are diving from a boat and there's a mild current. In most circumstances, we would ___________ for the first part of the dive.

swim into the current

My buddy and I have just finished a dive to 15 metres/50 feet for 60 minutes. We want to return to the same site and depth and stay another 60 minutes. We can ______________________ to see about how long we have to remain at the surface to have enough no stop time. (choose all that apply)

wait and check our no stop times on our computers periodically use the dive computer plan mode, if our computers have them, use a dive planning app check the RDP Table or eRDPML

To prevent and/or handle injuries caused by aquatic life, I should (choose all that apply)

watch where I put my feet, hands and knees. wear an exposure suit. treat all organisms with respect be familiar with potentially hazardous animals where I'm diving. be prepared to provide first aid for aquatic life injuries.