Exam (elaborations) - Padi open water diver certification exam with 100% correct answers

Exam (elaborations) - Padi open water diver certification exam with 100% correct answers .How often should I take my scuba cylinder to be visually inspected by my dive center? a. once a year b. once every two years c. every six months d. every five years - ANSWER-a. once a year .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 b. the balloon will get smaller and the air inside the balloon will be more dense c. the balloon will get bigger and the air inside the balloon will be more dense d. the balloon will get smaller and the air inside the balloon will be less dense - ANSWER-b. the balloon will get smaller and the air inside the balloon will get more dense .I turn a glass upside down, trap the air in it by putting it in water, and then I take the glass down to 10 meters/33 feet. The air space would... a. become half the size it was at the surface b. not change in size c. become 1/3 the size it was at the surface d. become 2/3 the size it was at the surface - ANSWER-a. become half the size it was at the surface .If an object is neutrally buoyant in fresh water, the same object placed into salt water would... a. sink b. either sink or float c. do nothing d. float - ANSWER-d. float