SDI Final Exam | 65 Questions with 100% Correct Answers | Verified | Updated 20234
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Course
SDI
Institution
SDI
Objects under water appear: 1: The same size as they do on land. 2: Twice as large as they do on land. 3: Closer and larger than they do on land. 4: Smaller and farther away than they do on land. - Closer and larger than they do on land. As you descend: 1: Colors appear to fade. 2: Reds and oranges...
SDI Final Exam | 65 Questions with 100% Correct
Answers | Verified
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,SDI Final Exam | 65 Questions with 100% Correct Answers
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SDI FINAL EXAM | QUESTIONS WITH 100%
CORRECT ANSWERS | VERIFIED | UPDATED 2024
Objects under water appear:
1: The same size as they do on
land. 2: Twice as large as they
do on land.
3: Closer and larger than they do on land.
4: Smaller and farther away than they do on land. - Closer and larger than
they do on land.
As you descend:
1: Colors appear to fade.
2: Reds and oranges are among the first colors to disappear.
3: At 30 m/99 ft, little color remains other than blues, grays, blacks
and whites. 4: All of the above. - All of the above.
Which of the following statements is true? There may be more than one
correct answer. 1: Water is 400 times denser than air.
2: Water is 800 times denser than air.
3: Sound travels about four times faster underwater.
4: Both the second and the third answer are correct. - Both the second and
the third answer are correct.
Which of the following is/are true?
1: Water conducts heat away from your body ten times faster than
air does. 2: Water conducts heat away from your body 25 times
faster than air does.
3: Fresh water conducts heat away from your body faster than salt water
does.
4: Salt water conducts heat away from your body faster than fresh water
does. - Water conducts heat away from your body 25 times faster than air
does.
When water stratifies itself into layers, according to temperature, the
boundary between layers is known as a(n):
1: Halocline.
2: Ichtyocline.
3: Thermodyne.
4: Thermocline. - Thermocline.
Which of the following is/are true?
1: Tides can make the water at a particular dive site noticeably deeper or
, SDI Final Exam | 65 Questions with 100% Correct Answers
| Verified
shallower than you may have experienced previously.
2: Tidal currents can be very strong, making diving difficult or even
dangerous.
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