OW Scuba Diver Quiz Q2019 2020/OW... · 21 hours ago · ITDA Advanced Scuba Open Water Diver is a natural extension to this course b. Very easy and Fun program, offering more experience

ITDA Group Quizzes and Exams © 2013 ITDA Group International Inc. Ltd. www.diveitda.org

2019/20

OW Scuba Diver Quiz | StephenCraig-Murray© 2019

ITDAGROUPINTERNATIONAL

OPEN WATER DIVER QUIZ SCUBA DIVER QUIZ

ITDA Group Quizzes and Exams © 2019 ITDA Group International Inc. Ltd. www.diveitda.com


ITDA Group International Inc. Ltd. ©2019 www.diveitda.com Page 2

OpenWaterScubaDiverQuiz–In4Parts.

Instructor: [Type your name] Name:

Class: [Type a class name] Date:

Period: [Type a period name] Results:

Instructions

Please type or write your answer only once, next to the question number in the space ___. if you make a mistake please LINE THROUGH the error and circle your correct answer. Only One Error per question is allowed. If you make too many mistakes you will need to purchase a new quiz book for your answers. ANSWER ALL PARTS 1 to 4 for Scuba Certification to Open Water Diver, you MUST complete all parts… Even if you are a certified diver. Pass rate is 85% correct for each section. There are 4 sections with a total of 66 Questions.

PartI:DiveTheory/Equipment.(TakenfromtheOWDiverManualV.8.0)

1) What is the primary basic equipment required to manage buoyancy control?

a. Scuba Unit

b. Scuba Unit and Suit, Fins and Mask

c. BCD and Weight Belt (Correct breathing and airway control, also affect buoyancy)

2) Which of those listed below are important features of a 1st Stage Regulator?

a. Breathing at ambient (Surrounding) pressure

b. Exhaust Port below demand valve for easy exhalation (Breathing Out)

c. Reduces cylinder pressure to intermediate pressure for 2nd stage delivery

3) Which of the following statements are correct

a. A diving certification is NOT required in most Countries to rent scuba or fill cylinders

b. In most Countries a scuba certification is required to rent scuba or fill cylinders

c. There is no need for a scuba certification from any agency

4) How much oxygen is in a normal air cylinder fill at 200bar?

a. 21%

b. 100%

c. None 0%, it’s just normal air to breath using scuba underwater



PartI:DivingTheoryLevel1.EquipmentContinued…

5)

What is the SCUBA Unit made up of?

a. All your equipment

b. The BCD, Regulator and Octopus and the SPG

c. The Air Cylinder, BCD, Regulator and Octopus and the SPG

6) What is the importance of correct weight use and buoyancy?

a. You Don’t need lead weights to dive as rescue divers only use the snorkel

b. We need lead weights because otherwise we would sink to the bottom

c. We need correct weight balance for buoyancy control and comfort

7) What is the correct way to clean equipment that is in contact with you?

a. Use of anti-microbial soap/cleaner like those used in hospitals

b. Use washing up liquid because it is NOT expensive

c. Only rinse with fresh water and no soap or cleaning agents

8) What is a “Sealed Regulator”?

a. A sealed regulator is only for the use of Navy Seals

b. A sealed regulator is one that is still in original packaging

c. A sealed regulator is designed for “Cold Water Diving” and is sealed to the environment

9) What is the most important rule in Scuba diving?

a. Ascend and Descend Slowly. At a rate that is comfortable

b. Standards are different in different cultures, so the rules are also different

c. Breathe continuously and Never Hold your breath, especially on ascending

10)

What is the primary use of the diving mask?

a. To allow us to see underwater and allow us to be calm and relaxed

b. To bring objects into focus and to see clearly. Also, to equalise eye/face air space

c. To allow us to be more comfortable then using swimming googles



PartI:DivingTheoryLevel1.Equipment/Buoyancy…

11) What two forms of snorkel breathing reduce the risk of a blackout?

a. Slow deep breathing, and full exhalation clearing the airway of CO2

b. Rapid shallow breathing, and skip breathing

c. Exhaling hard on descent and breath holding on ascent

12) Which of those listed below are the primary cause of shallow water blackout?

a. Task Loading, Exertion, Cold, Equipment, Buoyancy, Visibility, Peer Pressure

b. Misuse of scuba equipment

c. Excessive build-up of CO2 due to not clearing dead air spaces

13) What is considered as the most important safety skills in scuba diving?

a. Correct use of all equipment

b. Breathing slowly and deeply from the regulator

c. Buoyancy Control and Gas management

14) What is a BCD or Stab / Stabilising Jacket?

a. A BCD Buoyancy Compensation Device allows control of position and movement

b. A BCD Is a jacket that allow the diver to keep all of their equipment together

c. A BCD is a device for correcting too much weight or over weighting with lead

15) Which of the following are critical parts of a BCD to master control of?

a. Release straps and Buoyancy Bladder

b. Quick release straps, Dump Valves, Low Pressure Inflator (LPI) and Deflator

c. Cummerbund, Shoulder Straps and D Rings / Hooks to hold accessories

16) What is the difference between how a Dry Suit and Wet Suit work in diving?

a. Dry Suits are only for cold water diving, and wet suits are only for warm water

b. Dry suits heat air by the body, wet suits warm a layer of water from body heat

c. Dry suits keep you dry, and wet suits keep you wet



PartI:DivingTheoryLevel1.BasicPhysics…

17) Which single factor affects how we can hear underwater?

a. Good listening skills

b. Water in ears, make it difficult to hear

c. Water density, as water is denser than air we hear from all around

18) What is decompression?

a. When we ascend from depth to the surface we are releasing pressure (Decompressing)

b. As pressure increases, so volume decreases this is decompression

c. Decompression is NOT applicable to scuba diving as all diving is non-decompression

19) Normal Air contains what gases and how do they affect us diving?

a. Nitrogen, Oxygen, Neon, Zeon, Argon, CO2 and trace gases. And do NOT affect us

b. Nitrogen 78.8%, Oxygen 20.9% plus trace gases, which only affect us on ascent

c. Carbon Monoxide and Carbon Dioxide can be fatal if breathed at depth

20) What is DCS Decompression Sickness?

a. When we become nauseous (feeling sick) underwater and vomit on ascent

b. When gas expands inside our bodies on ascent we can be said to have DCS

c. DCS is when you ascend too fast, with breath holding, and suffer an expansion injury

21) What is DCI Decompression Illness?

a. DCI has all the signs and symptoms of DCS plus AGE Arterial Gas Embolism

b. There is no correct answer as everyone has a different response to pressure

c. DCI is when a diver becomes ill underwater from bacteria in the water

22) How can a scuba diver reduce their risk of DCS / DCI?

a. Do NOT dive this will eliminate the risks

b. Correct dive planning developing good diving skills and buoyancy control

c. Never ascend too quickly



PartII:DiverTheoryLevel1.Physiology…

23)

What is the primary cause of diving accidents?

a. Running low or out of air causing a rapid ascent

b. Poor or Bad buoyancy control which may lead to panic

c. Both A and B are correct

24) Which of those below are the correct form of Boyles law?

a. Depth 20m/66ft. Pressure 3bar. Volume 1/3. Density x3

b. As we descend in a water column we are increasing pressure by the surrounding water

c. Depth 10m/66ft. Pressure 1bar. Volume 1/1. Density x1

25) The most important single skill a scuba diver can develop is?

a. Buoyancy Control and Gas Management …

b. Advanced Diving Skills

c. Buddy Rescue Skills and Self-Reliance

26) Where is the pressure on descent felt in the human body first?

a. Pressure is felt on the BCD and Suit First

b. Pressure is first felt in the Ears, and the mask, these spaces MUST be equalised

c. Pressure is first felt by your buddy

27) What are “Compressible” air spaces?

a. Divers maybe affected by air spaces that are compressible

b. Air spaces are compressible when the pressure inside is greater than pressure outside

c. Trachea (Windpipe), Ears, Mask, Stomach, Lungs (Dry Suit) are compressible air spaces

28) When an Air Space is compressed this is referred to as a what?

a. Called a squeeze, this is when the pressure outside is greater than inside

b. Called a squeeze, this is when the pressure inside is greater than outside

c. Refers to all pressure caused by any depth



PartII:DiveTheory-DivingEnvironment…

29) What are the most common systems for measuring pressure?

a. Europe uses Barometric Pressure as Bar and USA use Psi (Pounds per Square Inch.

b. 1 bar is equal to 14.7 Psi and increases every 10m/33ft by 1 bar or 14.7 Psi

c. A and B are both correct

30) What is the correct pressure at 20m/66ft?

a. 44.1 Psi or 3 Bar. Do not forget to carry 1bar or 14.7 Psi from the surface

b. 29.4 Psi or 2 Bar. Do not forget to carry 1bar or 14.7 Psi from the surface

c. 58.8 Psi or 4 Bar. Do not forget to carry 1bar or 14.7 Psi from the surface

31) What are the most important safety factors in choosing a dive site?

a. Close to shops or access to help in an emergency

b. Easy entry and safe exit from the water, with access to help in an emergency

c. Dive site should be interesting and with things to do and observe underwater

32) What is the correct technique to equalise / balance pressure?

a. A Valsalva Manoeuvre

b. A Salvo

c. Hold your nose and breathe in

33) What is the build-up of pressure in our ears called on ascent?

a. A Squeeze

b. A Reverse Block

c. Upwards pressure bloc

34) How can most serious decompression problems be eliminated?

a. They cannot be eliminated

b. Follow tables and/or Dive Computer, with slow ascents, avoiding low-air issues

c. Make your safety stops

35) Use of dive tables or a dive computer will guarantee safety from DCS/DCI? True/False



PartII:DiveTheory-DivingEnvironment

36)

What does the term NDL explain? (Regarding RDP Dive Table)

a. No Direct Leave form the bottom to the surface

b. Non-Destructive Leaking

c. No Decompression Limit (limit of Time at depth for safety)

37) Which of those below are considered as the “Safest Dive Table Model”?

a. RGBM “Reduced Gradient Bubble Model”. Maximum Ascent rate of 9m/30ft.

b. RGBM “Registered Graduation Bullet Module”, max ascent rate of 20m/66ft.

c. RDP “Recreational Dive Planner”, max ascent rate of 18m/60ft per minute.

38) What is a “SAFETY STOP””?

a. A sports scuba term meaning, to make a stop before surfacing

b. Another term for a “Decompression Stop” before the surface, allowing gas to escape

c. BCD Air space

39) Which of those below best describe the most important signals you need to know?

a. OK. Question/Response, Stop, Breathe, Something Wrong, UP/Down, Slow, Out/Share Air

b. Go down, go up, turn left, dangerous shark,

c. Down, Up, look, see over there, bad air, boat, where are we?

40) Whenever diving from a boat you should”?

a. Trust the Captain and crew, take advice about entry and exit, lost diver procedures etc.

b. Take a boat diving program

c. Know the hazards on the boat, and where the first-Aid/Oxygen kit is kept

41) What is the most important accessory a boat must have?

a. A fast response boat or rib (Rigid Inflatable Boat) to get quickly to divers

b. A Diver Down Flag / SMB Surface Marker Buoy (Boats should NOT approach area)

c. A compressor on board to refill cylinders/scuba tanks between dives



PartII:DiveTheory–SaferDiving…

42)

Please NOTE: We are looking for the MOST correct answer…

What is the difference between decompression & no-decompression diving?

a. All diving is decompression diving, there is no difference

b. Decompression occurs after time at depth, no-decompression is only shallow diving

c. Decompression is ascending too fast and no-decompression is ascending normally

43) Which of the options below is the best entry for diving from smaller boats/RIB?

a. Giant Step Entry or Stride Entry

b. Forward Jump into the water, face first

c. Backwards Roll Over, entry back first, feet down

44) Which of the following are genuine risks with open water diving?

a. Water currents and visibility, boat traffic or jet skis

b. Changes in temperature and experience of buddy / experience of the group

c. A and B are Correct

45) What are the real risks regarding sharks or other dangerous marine life?

a. Be aware of the risks and listen to the dive briefings, do not panic, move slowly

b. The risk of attack from marine life is very, very, rare and local knowledge can help

c. Carry a commercial shark repellent or a large divers’ knife

46) Why is it so important to ascend carefully / slowly to the surface?

a. To avoid any risks of decompression sickness

b. It’s not important to ascend slowly or carefully, as the guide will lead the dive

c. Ascents hold a high risk of an uncontrolled ascent and unseen hazards at surface

47) Safer Diving MUST include which of the following?

a. Controlled Descents, and equalising on descent before a squeeze is felt

b. Plan your dive carefully, reduce risks by understanding them, be trained and prepared

c. Know where the oxygen and first-aid kit is and how to use it



PartIII:RescueTheoryandPractice

48)


What is the main benefit of the buddy system?

a. Two or more divers together may make a buddy team

b. Sharing the diving experiences make them better

c. One or more divers in a buddy team can offer help, or share air in an emergency

49) Dive tables provide what level of protection against DCI/DCS?

a. Tables offer limited protection, dive conservatively with tables and use a computer also

b. Tables offer great protection and you can feel safe if you follow them to the letter

c. RDP Tables and RGBM Tables are designed to cover all experience levels of divers

50) Which of the following is the correct procedure for an out-of-air diver at depth?

a. Slow Ascent to the surface

b. Emergency Ascent, “Buoyant” direct to surface

c. Keep Diver close, offering Octopus, ascend together slowly, make stops if possible

51) What if your dive buddy is out of air at depth and you need to rescue them?

a. Offer them your octopus and make a buddy-share ascent to stops if possible

b. Have the diver ascend with you in an emergency ascent and observe them

c. Both A and B are correct

52) What are the accepted / recommended rules regarding buddy diving?

a. Never dive with a buddy, always dive in a group with a leader

b. Never dive with a less experienced diver, and never be responsible for training others

c. When diving always, stay close and watch buddy’s air consumption through the dive

53) Why is it so important to gain experience in diving?

a. More experience equals more skills development and helps to build confidence

b. It’s not important to have more experience, as your leader will protect you

c. Experience means that you are serious about diving



PartIII:DivingTheoryandOpenWaterDiving

54)


What is the difference between ITDA and other agencies Buddy Checks?

a. Most agencies have buddy checks, and all are much the same

b. Buddy checks are not really so important, so it is OK to miss checks and save time

c. Only ITDA offer a Pre-Dive (Dry Check) and shallow in-water (Wet Buddy Check)

55) Which of those listed below are required pre-dive checks?

a. Check BCD and Hoses

b. Check BCD and Hoses, Connections, Straps and Dump Valves, Air Supply, 2nd Stages

c. Check water for hazards, temperature and traffic etc.

56) Which of the following best describes ITDA in-water wet checks?

a. In-water; Check for bubbles/leaks, All hoses, check buddy and review hand signals

b. Check for BCD use, inflate and deflate

c. Check suit for fits, weight belt for correct weighting and fit

57) Why is it so important to have pre-skill exercises for diver safety?

a. To reduce the effects of stress and make divers more comfortable with training skills

b. To reduce risks, by practicing skills

c. To prepare them for the training assessment

58) What are critical training skills?

a. They may avoid any risks of decompression sickness

b. Skills which can have a negative impact on diving safety, increasing risks in training

c. Skills which involve a risk of emergency ascent or panic, Regulator out of mouth, etc.

59) When the regulator is out of the mouth for example, the ITDA procedure is to?

a. Keep hold of the regulator, pushing it out and away, while blowing bubbles

b. Conduct the skill under buddy supervision

c. Instructor or leader may instruct you to watch them do it, many times



PartIV:DivingTheory-FurtherEducation&Training…

60)

What is AAS when referring to an Octopus regulator?

a. After Alternate Scuba

b. Alternative Air Source

c. Air Alternate Snorkel

61) What is the difference between a skill and a drill?

a. A skill is learned and then practiced to a point of second nature by repetition (A drill)

b. A skill is observed, and a drill is marching around

c. A skill is, something to learn and a drill is something to be played out

62) Why is the ITDA Nitrox Course Program good to take for new divers?

a. Nitrox is for deeper diving, more safely

b. Nitrox means less risks and more rewards

c. Nitrox will allow you to spend more time underwater to develop skills

63) How difficult is the ITDA Advanced Diver Program?

a. ITDA Advanced Scuba Open Water Diver is a natural extension to this course

b. Very easy and Fun program, offering more experience and specialist diving skills

c. A and B are both correct!

64) Who is responsible for first-aid on or after a dive?

a. First Person on scene who is certified in first-aid

b. The Dive Supervisor or Leader

c. Rescue Diver

65) What is a Specialist Diver Program?

a. Specialist Diver is advanced diving skills in specialist areas, like Cavern or Cave Diving

b. We have 60+ Specialist Diver Programs, from Buoyancy & Gas Management to Deep Air

c. Both A and B are Correct



All these questions are taken from the ITDA Group OW Scuba Diver Training manual and from the

Instructor “Open Water Scuba Diver Certification” presentation pack materials.

This may also be used with ITDA Club Diver Certifications…

Please complete our online training survey to help us to improve our courses, training and

materials in the future… Link below.

http://www.diveitda.com/Pages/admin_forms_quality_assurance.htm

Please visit our web site at: www.diveitda.com

66 Bonus Question:

___ What are the MOST common signs that a diver underwater maybe in distress?

1. Looking unresponsive and ignoring signals for OK

2. Clutching their chest or body parts as if in pain

3. Difficulty with breathing, fumbling with equipment and not looking in control, having problems with buoyancy.

4. All the above are correct…

Documents

OW Scuba Diver Quiz Q2019 2020/OW... · 21 hours ago · ITDA Advanced Scuba Open Water Diver is a natural extension to this course b. Very easy and Fun program, offering more experience