test

## test

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- Question 1 of 8
##### 1. Question

1 pointsYou do a dive to 23 meters/74 feet for 27 minutes. After a 52 minute surface interval, you want to do another dive to 14 meters/46 feet. What is the maximum allowable time for the second dive?

CorrectIncorrect - Question 2 of 8
##### 2. Question

1 pointsCorrectIncorrect - Question 3 of 8
##### 3. Question

1 pointsThere are several things you can do to help reduce the effects of poor visibility underwater. They include:

CorrectIncorrect - Question 4 of 8
##### 4. Question

1 pointsIf you took a glass filled with air and you took it down to 20 meters/65 feet, the volume of the air inside the glass would be reduced by 2 times, or it would be 1/2 the volume as it was on the surface.

CorrectIncorrect - Question 5 of 8
##### 5. Question

1 pointsLet’s say that the air in your tank lasts 60 minutes at the surface. If you were to descend to 20 meters/65 feet, how long would your air last if your were breathing normally?

CorrectIncorrect - Question 6 of 8
##### 6. Question

1 pointsAt the surface, the air in your tank will last 30 minutes. If you are breathing normally, how long would your air last if you were to descend to 10 meters/33 feet?

CorrectIncorrect##### Hint

If you know your air consumption at the surface, then it’s easy to calculate how long your air will last at a certain depth.

Ask yourself what is your ATA and does your air air consumption decrease or increase at depth?

- Question 7 of 8
##### 7. Question

1 pointsAt the surface, the air in your tank will last 30 minutes. If you are breathing normally, how long would your air last if you were to descend to 20 meters/66 feet?

CorrectIncorrect - Question 8 of 8
##### 8. Question

8 points**This question has 8 possible answers. Each hand signal question that you match has a total of 1 point. The total points for this question is 8.**

From the following hand signals chart, match the corresponding numbers to each hand signal:- Ok on the surface
- Help on the surface
- I'm Ok, are you Ok?
- Stop
- Something is wrong
- Share air
- Low on air
- Out of air

CorrectIncorrect -