If divers are scoring 8 or 9 on most dives, it may be a sign of their extreme skill, or it may be a sign that their dive list is not competitive, and they may lose the meet to a diver with higher DDs and lower scores.

If the diver pauses during his or her hurdle to ask for a change of dive, it will be declared a balk and the change of dive will not be permitted.

If the bezel could be turned the other way this could suggest to a diver that the elapsed time was shorter than the truth, thus giving a falsely low elapsed time reading and therefore an assumed falsely low air consumption reading and falsely high remaining air reading, all of which could be highly dangerous.

* If the rgulator free-flows and freezes, the diver should close it down and switch to the backup, and terminate the dive.

If the diver is over-weighted, the suit may contain additional air to offset the extra weight ; migration of this air, particularly to the legs when the diver is not upright, can cause the diver to " invert " to a legs-up position that makes venting the drysuit difficult ( see more on this problem, in the following section below ).

If there is more air in the dry suit than is needed to counteract " squeeze " on the undersuit, that excess air creates a " bubble " which moves to the highest point of the suit ; in an upright diver this is the shoulders.

If the diver is positively buoyant and rising, the buoyancy of the dry suit becomes uncontrollable after rising though a certain fraction of depth, and there is then an increased risk of a rapid ascent which grows more rapid, as the distance to the surface decrease.

If currents are not properly managed, they can cause serious problems for the diver.

If any one of the three light sources fail for one diver, the dive is called off and ended for all members of the dive team.

If a diver accidentally breaks off a stalactite from the ceiling or other speleothem formation, it will not reform as long as the cave is underwater so active cave conservation diving techniques are paramount.

If the heater fails and a backup unit cannot be immediately brought online, a diver in the coldest conditions can die within minutes ; depending on decompression obligations, bringing the diver directly to the surface could prove equally deadly.

If the diver rises, by even the most minuscule amount, the pressure on the bubble will decrease, it will expand, it will displace more water, and the diver will become more positively buoyant, rising still more quickly.

If the fish is too large to hang on to, the diver can tie it off or release it, only losing his spear and rope.

* If the diver's exposure suit is made of a compressible gas-filled material such as foamed Neoprene, the volume of the material will change ( Boyle's Law ) as the pressure changes when the diver descends and ascends.

If the diver needs to adjust trim for greater comfort and efficiency while working, trim weights of various types may be added to the harness.

If a helmeted diver becomes unconscious but is still breathing, the helmet will remain in place and continue to deliver breathing gas until the diver can be rescued.

If the weights have a method of quick release, they can provide a useful rescue mechanism: they can be dropped in an emergency to provide instant increase in buoyancy which may return the diver to the surface.

If by force of habit the diver does the same with a rebreather that has a plain mouthpiece instead of a full-face mask, that water will get into the breathing circuit.

; W-Weights: If a weight belt is worn, check that the belt is secure, and the strap arranged so that it can be released with the right hand of the diver.

If the deficiency persists long enough, it is reasonable to suppose that the Af label will reflect the Af distribution in the thyroglobulin.

# If it persists, " gather facts and seek help.

If high pressure persists, air pollution will build up due to pollutants trapped near the surface caused by the subsiding motion associated with the high.

If the irritation persists, the cause could be a dirty, damaged, or inside-out lens.

If reasonable doubt still persists, an exploratory peritoneal lavage or laparoscopy may be performed.

If a hospital ship persists in violating restrictions, a belligerent is legally entitled to capture it or take other means to enforce compliance.

If threat persists the Iguana can lash with its tail, bite and use its claws in defense.

If distrust persists, a group may never even get to the norming stage.

If this condition persists for several hours or there is any sign of a lack of blood flow, paraphimosis should be treated as a medical emergency, as it can result in gangrene or other serious complications.

If a relatively wet period persists, the rainforest flora may reestablish itself.

If redness persists for abnormal amounts of time after blushing, then it may be considered an early sign of rosacea.

If the economy persists in operating above potential, the AS curve will shift to the left, making the increases in real output transitory.

If the predator persists, the often hissing crane will attack, stabbing with their bill ( which is powerful enough to pierce the skull of a small carnivore ) and kicking with their feet.

If the condition persists, then Spock will die in eight days.

If a white man persists in ' causing trouble ', the night riders may pay him a visit, or the officials may haul him into court ; if he is a Negro, a mob may hunt him down.

If the effect persists, an audiologist or Hearing Instrument Specialist can sometimes further tune the hearing aid ( s ).

If the erroneous command persists for more than a predetermined time, differential pressure sensing activates a selector valve to isolate and remove the defective servovalve hydraulic pressure, permitting the remaining channels and servovalves to control the actuator ram spool.

If this condition persists chronically what is known as Nutmeg liver will develop.

If the motion is non-dissipative, is constant and the motion persists forever, contrary to observation ( since is not constant in real life situations ).

If the condition persists or worsens into late childhood and adulthood, a corrective osteotomy may be recommended to straighten the legs.

" If it persists from generation to generation, the trap begins to reinforce itself if steps are not taken to break the cycle.

If Spain recognizes our rights, will have in Cuba an affectionate daughter ; if it persists in subjugating to us, we are resolute to die before to be under his domination.

If the tie persists, again the higher classified team is declared the winner and no penalty kicks are taken.

If the tie persists, again the higher classified team is declared the winner and no penalty kicks are taken.