| OnlineExams | TestPrep | StudyResources | AcademicSuccess | ExamPreparation | QuizTime | LearningTools | Education | StudentSupport
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
Scuba AFS 270 SDI Midterm Questions
with Detailed Verified Answers (100%
Correct Answers) /Already Graded A+
Quiz: objects underwater appear ___ and ___ than they do on land
Ans: closer and larger
Quiz: As you descend:
1: Colors will remain largely the same.
2: Blues and grays disappear quickly.
3: Dive lights have little effect on apparent color.
4: None of the above.
Ans: 4 (none of the above)
Quiz: Water conducts heat away from your body ____x as fast as
air does
Ans: 25x
Quiz: When water stratifies itself into layers, according to
temperature, the boundary between layers is known as a(n):
Ans: thermocline
Quiz: Which of the following is/are true?
Sunday, 02 March 2025
,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.
Ans: 4 (all of the above)
Quiz: 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.
Ans: 2 (Water conducts heat away from your body 25 times faster than air
does)
Quiz: The presence of thermoclines means that:
1: Surface temperatures will provide divers with a good indication of
what they can expect at depth.
Examstudy - Stuvia US
,2: Divers may require less in the way of exposure protection at depth
than they will at the surface.
3: Divers may require more in the way of exposure protection at depth
than they will at the surface.
4: None of the above.
Ans: 3 (Divers may require more in the way of exposure protection at depth
than they will at the surface)
Quiz: Which of the following statements are true?
1: Wave height is the distance from its highest point (crest) to its lowest
point (trough).
2: Wave length is the distance from crest to crest.
3: Wave oscillation to calculated by multiplying the wave height times
its length.
4: Both the first and second answers are correct.
Ans: 4 (both the first and second answers are correct)
Quiz: TRUE OR FALSE: In general, the best time to dive is during
slack tide, the period between high and low tides.
Ans: TRUE
Examstudy - Stuvia US
, Quiz: TRUE OR FALSE: The sun warming water near the equator,
coupled with the earth's rotation, is the primary cause of permanent
ocean currents.
Ans: True
Quiz: T/F
A wave encountering shallow water begins to slow at it bottom, while
the top of the wave continues at its previous speed. This causes the
wave to break.
Ans: true
Quiz: Which of the following statements is/are true?
1: A rip current is a narrow flow of swiftly moving water that runs
perpendicular to shore.
2: Rip currents form when water flowing out to sea is funneled through a
narrow restriction, such as two sandbars or a break in a coral reef.
3: The force of a rip current generally diminishes in deeper water, not
far beyond the surf zone.
4: All of the above.
Ans: All of the above
Quiz: Which of the following is/are true?
Examstudy - Stuvia US
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
Scuba AFS 270 SDI Midterm Questions
with Detailed Verified Answers (100%
Correct Answers) /Already Graded A+
Quiz: objects underwater appear ___ and ___ than they do on land
Ans: closer and larger
Quiz: As you descend:
1: Colors will remain largely the same.
2: Blues and grays disappear quickly.
3: Dive lights have little effect on apparent color.
4: None of the above.
Ans: 4 (none of the above)
Quiz: Water conducts heat away from your body ____x as fast as
air does
Ans: 25x
Quiz: When water stratifies itself into layers, according to
temperature, the boundary between layers is known as a(n):
Ans: thermocline
Quiz: Which of the following is/are true?
Sunday, 02 March 2025
,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.
Ans: 4 (all of the above)
Quiz: 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.
Ans: 2 (Water conducts heat away from your body 25 times faster than air
does)
Quiz: The presence of thermoclines means that:
1: Surface temperatures will provide divers with a good indication of
what they can expect at depth.
Examstudy - Stuvia US
,2: Divers may require less in the way of exposure protection at depth
than they will at the surface.
3: Divers may require more in the way of exposure protection at depth
than they will at the surface.
4: None of the above.
Ans: 3 (Divers may require more in the way of exposure protection at depth
than they will at the surface)
Quiz: Which of the following statements are true?
1: Wave height is the distance from its highest point (crest) to its lowest
point (trough).
2: Wave length is the distance from crest to crest.
3: Wave oscillation to calculated by multiplying the wave height times
its length.
4: Both the first and second answers are correct.
Ans: 4 (both the first and second answers are correct)
Quiz: TRUE OR FALSE: In general, the best time to dive is during
slack tide, the period between high and low tides.
Ans: TRUE
Examstudy - Stuvia US
, Quiz: TRUE OR FALSE: The sun warming water near the equator,
coupled with the earth's rotation, is the primary cause of permanent
ocean currents.
Ans: True
Quiz: T/F
A wave encountering shallow water begins to slow at it bottom, while
the top of the wave continues at its previous speed. This causes the
wave to break.
Ans: true
Quiz: Which of the following statements is/are true?
1: A rip current is a narrow flow of swiftly moving water that runs
perpendicular to shore.
2: Rip currents form when water flowing out to sea is funneled through a
narrow restriction, such as two sandbars or a break in a coral reef.
3: The force of a rip current generally diminishes in deeper water, not
far beyond the surf zone.
4: All of the above.
Ans: All of the above
Quiz: Which of the following is/are true?
Examstudy - Stuvia US
