DIVEMASTER STUDY GUIDE EXAMS SET
TEST PAPER QUESTIONS AND SOLUTIONS
2026 VIEW AHEAD EXAM.
⩥ Scuba divers who ascend to altitude soon after completing a dive
increase their risk of decompression sickness because:
a. altitude sickness can contribute to the formation of nitrogen bubbles
in the blood stream.
b. the partial pressure of inhaled oxygen is greater than the partial
pressure of nitrogen in the tissues.
c. dive tables and computers are based on surfacing at sea level, thus
exposure to lower pressure increases the tissue. pressure gradient and
many increase bubble formation.
d. the surrounding pressure is greater, thus exposure to higher
pressure may increase bubble formation. Answer: ASK BROOKE
⩥ If an object is neutrally buoyant in fresh water, what will happen to
the object when it's placed in salt water?
a. The answer cannot be determined be determined from the
information given.
,b. It will sink.
c. It will float
d. It will remain neutrally buoyant. Answer: c. It will float.
⩥ The absolute pressure at 20 metres / 66 feet of salt water is:
a. 3 bar / ata
b. 2 bar / ata
c. 4 bar / ata
d. 1.5 bar / ata Answer: a. 3 bar / ata
⩥ If an air mixture contains 80% nitrogen and 20% oxygen at seal
level, what will the partial pressure of nitrogen be if its taken to 20
metres / 66 feet in sea water? Answer: ASK BROOKE
⩥ Sound travels approximately ____________ times faster in water
than in air, which is why diver have difficulty determining the
___________ of sound underwater.
, a. 20 / direction
b. four / direction
c. two / volume
d. four / volume Answer: b. four / direction
⩥ If a glass of water is placed in a recompression chamber and the
pressure surrounding the water is increased:
a. the amount of gas dissolved in the water will remain unchanged.
b. gas will come out of solution, most likely in the form of bubbles.
c. the amount of dissolved in the water will increase.
d. the volume of air in the glass will decrease. Answer: ASK
BROOKE
⩥ Water conducts heat away from the body more than ________
times faster than air. Answer: 20
⩥ What causes an object to appear larger and closer than actual when
viewed underwater?
TEST PAPER QUESTIONS AND SOLUTIONS
2026 VIEW AHEAD EXAM.
⩥ Scuba divers who ascend to altitude soon after completing a dive
increase their risk of decompression sickness because:
a. altitude sickness can contribute to the formation of nitrogen bubbles
in the blood stream.
b. the partial pressure of inhaled oxygen is greater than the partial
pressure of nitrogen in the tissues.
c. dive tables and computers are based on surfacing at sea level, thus
exposure to lower pressure increases the tissue. pressure gradient and
many increase bubble formation.
d. the surrounding pressure is greater, thus exposure to higher
pressure may increase bubble formation. Answer: ASK BROOKE
⩥ If an object is neutrally buoyant in fresh water, what will happen to
the object when it's placed in salt water?
a. The answer cannot be determined be determined from the
information given.
,b. It will sink.
c. It will float
d. It will remain neutrally buoyant. Answer: c. It will float.
⩥ The absolute pressure at 20 metres / 66 feet of salt water is:
a. 3 bar / ata
b. 2 bar / ata
c. 4 bar / ata
d. 1.5 bar / ata Answer: a. 3 bar / ata
⩥ If an air mixture contains 80% nitrogen and 20% oxygen at seal
level, what will the partial pressure of nitrogen be if its taken to 20
metres / 66 feet in sea water? Answer: ASK BROOKE
⩥ Sound travels approximately ____________ times faster in water
than in air, which is why diver have difficulty determining the
___________ of sound underwater.
, a. 20 / direction
b. four / direction
c. two / volume
d. four / volume Answer: b. four / direction
⩥ If a glass of water is placed in a recompression chamber and the
pressure surrounding the water is increased:
a. the amount of gas dissolved in the water will remain unchanged.
b. gas will come out of solution, most likely in the form of bubbles.
c. the amount of dissolved in the water will increase.
d. the volume of air in the glass will decrease. Answer: ASK
BROOKE
⩥ Water conducts heat away from the body more than ________
times faster than air. Answer: 20
⩥ What causes an object to appear larger and closer than actual when
viewed underwater?
