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PADI, Open Water Diver, Final Exam Review questions and answers 1) If an object is neutrally buoyant (does not sink or float) in fresh water, the same object placed into salt water would A sink. B either sink or float. C do nothing. D float. - ANSWERS D 2) I blow up a balloon, tie it off, and take it to the bottom of the swimming pool. What will happen to the balloon and the air inside it? A The balloon will get bigger and the air inside the balloon will be less dense (molecules mo...

PADI Open Water Diver Final Exam with 100% Correct Answers 2024 updated As a newly certified PADI Open Water Diver, I will be trained to dive with buddy as deep as - ANSWERS 18 metres/60 feet As you descend in water, the pressure - ANSWERS increases A depth change of 10 metres/33 feet causes a pressure change of - ANSWERS 1 bar/ata (atmosphere) if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - ANSWERS 2 litres (the density of the air would be thre...

PADI Open Water Diver Final Exam C questions and correct answers As you descend in water the pressure - ANSWERS increases A depth change of 10 meters/33 feet causes a pressure change of - ANSWERS 2 bar/ata if you take 6 liters of air from the surface to 20 metres/66 feet, the volume will be - ANSWERS 2 liters The density of the air at 20 meters/66 feet would be _______ the density at the surface of - ANSWERS three times A balloon fully inflated and sealed at 10 meters/33 feet, would ...

PADI, Open Water Diver, Final Exam Review B questions and correct aswers D float. Salt water is heavier than fresh water because it has dissolved minerals in it. This means it causes more upward force (buoyancy) on an object. An object that is neutrally buoyant in fresh water would float in salt water because there is greater upward force. See Being a Diver I - Buoyancy and Controlling Buoyancy. - ANSWERS 1) If an object is neutrally buoyant (does not sink or float) in fresh water, t...

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EPA 608 Certification Exam with 100% Correct Answers updated What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - ANSWERS November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - ANSWERS Recover all refrigerants. The objective of the Clean Air Act is to protect what? - ANSWERS The earth's stratosphere. HFC's - ANSWERS HydroFlouroCarbon's CFC's - ANSWERS ChloroFluoroCarbon's ODP - ANSWERS Ozon...

EPA 608 Certification Exam with 100% Correct Answers 2024 November 14, 1994 - ANSWERS What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? Memorize it, ya'll. - ANSWERS 1989- Montreal Protocol July 1 1992- Violation to vent CFCs or HCFCs Nov 15 1993- Recovery/Recycling equipment must be certified and labeled by EPA AND Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, ...

EPA 608 Certification Exam Questions and answers Ozone depletion is caused by _ in HCFC refrigerants - ANSWERS Chlorine CFCs and HCFCs _ making them capable of reaching the stratospheric ozone - ANSWERS do not dissolve in water or easily break down in the atmosphere How many ozone molecules are destroyed by one chlorine atom - ANSWERS 100,000 ozone molecules The stratospheric ozone layer protects us from _ - ANSWERS ultraviolet radiation from the sun Which health effect increases fro...

EPA 608 CERTIFICATION EXAM DATES QUESTIONS AND ANSWERS Mandatory use of certified recycling equipment when servicing automotive - ANSWERS January 1, 1992 Clean air act calls for phase-out of CFC/HCFC, prohibits CFC/HCFC venting, and set standards for the three R's - ANSWERS July 1, 1992 All persons opening appliances ( besides small and auto) and disposing of appliances must have at least 1 piece of self contained recovery equipment at shop - ANSWERS July 13, 1993 required low loss...