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 diver persists, the shark will either retreat or launch a rapid open-mouthed attack, slashing with its upper teeth.

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 one takes the middle number, 5, and multiplies it by 3 ( the base number of the magic square of three ), the result is 15, which is also the constant sum of all the rows, columns, and two main diagonals.

If engine installation takes 20 minutes, hood installation takes five minutes, and wheel installation takes 10 minutes, then a car can be produced every 35 minutes.

If the bad deeds outweigh the good, the bridge narrows down to the width of a blade-edge, and a horrid hag pulls the soul in her arms, and takes it down to hell with her.

If the celebration takes place outside of Mass, it can be held in the home, in a hospital or institution, or in church.

If the joining of monomers takes place at such a carbon atom, the free hydroxy group of the pyranose or furanose form is exchanged with an OH-side-chain of another sugar, yielding a full acetal.

If the opponent takes, the cube, now showing the doubled stake, is moved to the opponent's side of the board.

If the combustion takes place using air as the oxygen source, the nitrogen can be added to the equation, as and although it does not react, to show the composition of the flue gas:

If the relative priorities of these substituents need to be established, R takes priority over S. When this happens, the descriptor of the stereocenter is a lowercase letter ( r or s ) instead of the uppercase letter normally used.

If the addition of a functional group takes place at the less substituted carbon atom of the double bond, then the electrophilic substitution with acids is not possible.

* If the offence fails to make ten yards in three plays, the defence takes over on downs.

* If the offence attempts a forward pass and it is intercepted by the defence ; the defence takes possession immediately ( and may try to advance the ball on the play ).

If Pierre takes a second bite, it is not caused by his pleasure from the first ; If Pierre says, " That was good, so I will take another bite ", his speech act is not caused by the preceding pleasure.

If the outcomes x < sub > i </ sub > are not equiprobable, then the simple average ought to be replaced with the weighted average, which takes into account the fact that some outcomes are more likely than the others.

If evaporation takes place in an enclosed area, the escaping molecules accumulate as a vapor above the liquid.

" If a dependent variable takes a while to fully absorb a shock.

A former senior product manager at Master Lock, a trigger lock manufacturer, was quoted as saying “ If you put a trigger lock on any loaded gun, you are making the gun more dangerous .” Critics also point out that a trigger lock will increase the time it takes a gun owner to respond to a self-defense emergency.

If one takes the median of 17 of these 22 compositions for rockets ( 75 % nitrates, 9. 06 % sulfur, and 15. 94 % carbon ), it is nearly identical to the modern reported ideal gunpowder recipe of 75 % potassium nitrate, 10 % sulfur, and 15 % carbon.

If you push on a wall, it takes a fraction of a second before you apply the full push.

If G is any subgroup of GL < sub > n </ sub >( R ), then the exponential map takes the Lie algebra of G into G, so we have an exponential map for all matrix groups.

If one takes the experimentally observed flow around an airfoil as a starting point, then lift can be explained in terms of pressures using Bernoulli's principle and conservation of mass.

If the inheritance from to and the inheritance from to are both marked "" ( for example, ""), C ++ takes special care to only create one object, and uses of's members work correctly.

If only the second and third conditions of the definition of measure above are met, and takes on at most one of the values, then is called a signed measure.