SDI Final Exam | Actual Questions
with Verified Answers Grade A+ Guarante
Save
Terms in this set (64)
Objects under water appear: Closer and larger than they do on land.
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.
As you descend: All of the above.
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.
,Which of the following statements Both the second and the third answer are correct.
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.
Which of the following is/are true? Water conducts heat away from your body 25
1: Water conducts heat away from times faster than air does.
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.
, When water stratifies itself into Thermocline.
layers, according to temperature,
the boundary between layers is
known as a(n):
1: Halocline.
2: Ichtyocline.
3: Thermodyne.
4: Thermocline.
Which of the following is/are true? All of the above.
1: Tides can make the water at a
particular dive site noticeably
deeper or shallower than you may
have experienced previously.
2: Tidal currents can be very strong,
making diving difficult or even
dangerous.
3: Strong tidal currents can have an
adverse effect on visibility.
4: All of the above.
The sun warming water near the True.
equator, coupled with the earth's
rotation, is the primary cause of
permanent ocean currents.
1: True.
2: False.
with Verified Answers Grade A+ Guarante
Save
Terms in this set (64)
Objects under water appear: Closer and larger than they do on land.
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.
As you descend: All of the above.
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.
,Which of the following statements Both the second and the third answer are correct.
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.
Which of the following is/are true? Water conducts heat away from your body 25
1: Water conducts heat away from times faster than air does.
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.
, When water stratifies itself into Thermocline.
layers, according to temperature,
the boundary between layers is
known as a(n):
1: Halocline.
2: Ichtyocline.
3: Thermodyne.
4: Thermocline.
Which of the following is/are true? All of the above.
1: Tides can make the water at a
particular dive site noticeably
deeper or shallower than you may
have experienced previously.
2: Tidal currents can be very strong,
making diving difficult or even
dangerous.
3: Strong tidal currents can have an
adverse effect on visibility.
4: All of the above.
The sun warming water near the True.
equator, coupled with the earth's
rotation, is the primary cause of
permanent ocean currents.
1: True.
2: False.
