Padi Open Water Manual Knowledge Review Answers

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2. Padi Open Water Manual Knowledge Review Answers
3. Padi Open Water Diver Manual Knowledge Review Answers

Open Water Knowledge Reviews These Knowledge Reviews are intended for use for courses taught at Puffin Dive Centre and after printing should be filled in and brought in for evaluation and if appropriate, correction. These knowledge reviews must be completed for certain courses and form a mandatory part of the course content and will be retained by Puffin Dive Centre as part of the corroboration of delivered course content. The answers required are available from and should be obtained from the PADI Open Water Manual. Chapter 1 - Open Water Knowledge Review 1. True or False.

A neutrally buoyant object displaces an amount of water less than its own weight. Explain why buoyancy control on the surface and underwater is one of the most important skills you can master: On the surface: Underwater: 3. Fill in the blanks with the appropriate words: freshwater, saltwater. 'An object would be more buoyant in than it would be in.'

True or False. Because water is denser than air, the pressure change over a given distance ascent or descent is significantly greater in water than in air.

Complete the following chart for a sealed flexible bag, full of air at the surface. Depth Pressure Air Volume Air Density 0m/0ft 1 bar/ata x1 10m/33ft 1/2 30m/99ft 1/4 40m/132ft 5 bar/ata x5 6. Circle the letter that best describes a squeeze: a. Pain and discomfort caused when the pressure outside an airspace is less than the pressure inside an airspace.

Pain and discomfort caused when the pressure inside an airspace is less than the pressure outside an airspace. Circle each letter which describes a technique used to equalise air spaces during descent: a. Gently blow against a pinched nose. Swallow and wiggle the jaw from side to side. Gently blowing against a pinched nose while swallowing and wiggling the jaw from side to side.

State how often you should equalise your ears during descent. True or False. 'If you feel discomfort in your ears during descent, continue to descend until the discomfort is gone. State the most important rule in scuba diving: 11. Circle the letter of the best definition of a reverse block: a. A condition that occurs when expanding air trapped in a body airspace during ascent causes pain and discomfort. A condition that occurs when expanding air escapes from a body airspace during ascent causing pain and discomfort.

Describe what you should do if you feel discomfort during ascent due to air expansion, whether in your ears, sinuses, stomach, intestines or teeth. When scuba diving, why must your nose be enclosed in the mask?

Explain the best way to prevent water from entering your scuba tank: 15. Circle the appropriate answer: The most important feature to consider when purchasing a regulator is: a. The number of hoses it has c. Ease of breathing d.

Size Student Diver Statement: This knowledge review has been completed to the best of my ability. Any questions I answered incompletely or incorrectly have been explained and I understand what I missed. Name Date Chapter 2 - Open Water Knowledge Review 1. Circle the appropriate answer: 'Underwater, objects appear 33 percent and/or.' Smaller, further away b.

Larger, closer 2. Circle the appropriate answer: 'You will have difficulty determining the origin of underwater as it travels about four times faster in water than in air. Fill in the blank with the appropriate word: faster or slower. 'Water conducts heat away from your body than air does.' Describe what you should do if you begin to shiver continuously underwater. Of the procedures you can follow to compensate for the increased resistance of water while diving, circle those listed below: a. Streamline yourself and your equipment b. Marine corps pmcs guidelines.

Avoid rapid, jerky movements c. Move slowly and steadily d. Pace yourself 6. Check the statement that describes the proper breathing pattern while diving: a. Consistently rapid and shallow b. Consistently slow and deep.

It is easy to prevent overexertion while diving. Circle the proper preventative measures listed here: a.

Move slowly and avoid extended strenuous activity. Use your arms rather than your legs for propulsion underwater. Know your physical limits. Explain what to do if you become overexerted while diving: a.

Underwater: b: At the surface: 9. Circle the letters corresponding to techniques used for airway control: a.

Use your tongue as a splash guard by placing the tip on the roof of your mouth. Inhale slowly. Avoid rapid, jerky movements.

Inhale cautiously. Explain why it is important not to wear a tight fitting hood. Circle the appropriate answer: The most important feature of a weight system is: a. The size and shape of the weights. The ease of adjustment.

Quick-release mechanism. Circle one answer: An alternate air source should be , so it can be quickly and easily identified by the diver in need of the device. Tucked under the weight belt. Conspicuously marked. Describe where an alternate air source should be located.

True or False: A diving knife is used as a tool (to measure, pry, cut, dig and pound), but is not intended to be, nor should be, used as a weapon. A diver waving on the surface is likely to be signalling: a. Distress, Help c.

Out-of-air 16. Explain how to check for proper weighting. List and describe the steps of the predive safety check (buddy check), and explain when the check should be used: Student Diver Statement: This knowledge review has been completed to the best of my ability. Any questions I answered incompletely or incorrectly have been explained and I understand what I missed.

Name Date Chapter 3 - Open Water Knowledge Review 1. Several factors that affect visibility underwater include: a. Water movement c. Ambient pressure d.

Suspended particles 2. True or False: To avoid problems associated with diving in clear water, it is recommended you use an accurate depth gauge, refer to it frequently and use a line for ascents and descents. Explain what you should do if you are caught in a current at the surface. True or False: You will find it easier to swim against a mild current along the bottom where it is generally weaker than on the surface. Circle one answer: If there is a current present, you should generally begin your dive: a. With the current b.

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Across the current c. Against the current 6. Circle one answer: Nearly all injuries caused by aquatic creatures are caused by action on the part of the animal. Unpredictable b. Unprovoked c. Describe what you should do if you spot an aggressive animal underwater: 8. True or False: Be sure to obtain a proper orientation for safety and enjoyment when diving in a new area or engaging in new activity.

A rip current can be recognised as a line of turbid, foamy water moving: a. Toward shore b. Parallel to shore 10.

Outline three ways to prevent or control most diving problems on the surface. True or False: The first step in assisting another diver with a problem at the surface is to talk to them, offering encouragement and persuading them to relax. Arrange the five low-on-air/out-of-air emergency procedures in order of priority from 1 to 4. Buoyant Emergency ascent Controlled emergency swimming ascent (CESA) Normal ascent Alternate air source ascent 13. Circle one answer: If you become entangled underwater you should: a. Twist and turn to free yourself b.

Stop, think and then work slowly and calmly to free yourself. True or False: With an unconscious diver, the primary concern is to remove him from the water.

True or False: Once removed from the water, an unconscious breathing diver should be administered oxygen if available. Student Diver Statement: This knowledge review has been completed to the best of my ability. Any questions I answered incompletely or incorrectly have been explained and I understand what I missed. Name Date Chapter 4 - Open Water Knowledge Review 1. A detailed log book is proof-of-experience documentation typically requested in many dive situations. Circle those listed here: a.

For additional diver training b. By dive stores when buying dive equipment c. When diving at resorts or on boats 2. Explain how to prevent problems with contaminated air.

State the two ways divers prevent problems with oxygen. Circle each symptom related to nitrogen narcosis: a. Impaired coordination b. Foolish behaviour c. Joint and limb pain 5. Circle one answer. To prevent Nitrogen Narcosis: a.

Skip breaths b. Equalise your air spaces early and often c.

Avoid deep dives. Check each symptom which may be related to decompression sickness: a. Foolish behaviour b. Moderate tingling c. Cherry-red lips d. Weakness and prolonged fatigue 7. Outline the first aid procedure for assisting someone with decompression illness: 8.

True or False: When using either version of the Recreational Dive Planner you must ascend no faster than 18m / 60ft per minute. Place the corresponding letter in the blank: Maximum depth limit for Open Water Divers. Maximum depth limit for divers with training and experience beyond Open Water Diver Level.

Maximum depth limit for divers with Deep Diver training. 30m/100ft 10. According to the Recreational Dive Planner, the no-decompression limit for 18m/60ft is minutes. What will your pressure group be after a dive to 12m/42ft for 24 minutes? After a dive, you are in pressure group K. What will your new pressure group be after a 34-minute surface interval?

A diver in pressure group G plans a dive to 17m/56ft. What is the maximum allowable bottom time according to the RDP?

Padi Open Water Manual Knowledge Review Answers

Work out the final pressure group upon surfacing after the following series of dives: Dive 1: 16m/50ft for 23min Surface Interval 1:30 Dive 2: 10m/35ft for 46min End PG= 15. Work out the final pressure group upon surfacing after the following series of dives: Dive 1: 18m/60ft for 15min Surface Interval 1:00 Dive 2: 12m/35ft for 30min End PG= Student Diver Statement: This knowledge review has been completed to the best of my ability. Any questions I answered incompletely or incorrectly have been explained and I understand what I missed. Name Date Chapter 5 - Open Water Knowledge Review 1. Describe the three situations where a safety stop is required: a. Circle one answer: If you accidentally exceed a no-decompression limit or an adjusted no-decompression limit by no more than 5 minutes, you should slowly ascend at a rate no faster than 18m/60ft per minute to 5m/15ft and remain there for minutes prior to surfacing. After reaching the surface, do not dive for at least hours.

8 minutes, 6 hours b. 15minutes, 24 hours 3.State the altitude (metres/feet) above which the recreational dive planner should not be used unless special procedures are followed: 4. True or False: To reasonable assure you remain symptom free from decompression sickness when flying in a commercial jet airliner after diving, wait a minimum of 12 hours. Explain the procedure you must follow when planning a dive in cold water or under strenuous conditions using the Recreational Dive Planner. What is the minimum surface interval required between a dive to 18m/60ft for 40minutes followed by a dive to 14m/50ft for 60 minutes?

What is the minimum surface interval required between a dive to 20m/70ft for 29 minutes followed by a dive to 14m/50ft for 39 minutes? With reference to the compass heading shown in Figure 1, circle the figure letter that indicates a reciprocal heading: Figure 1 A B C 9. What is the purpose of the PADI system of continuing education? What are the benefits of PADI Adventure Dives and the Advanced Open Water Program? State the purpose of a PADI Discover Local Diving experience. When should you consider taking a PADI Scuba Review course? What is the relationship between Adventure dives, Advanced Open Water Diver course dives and Specialty Diver courses?

Padi Open Water Diver Manual Knowledge Review Answers

Student Diver Statement: This knowledge review has been completed to the best of my ability. Any questions I answered incompletely or incorrectly have been explained and I understand what I missed. Name Date Site and content © Puffin Dive Centre 2018.