If an otherwise perfect wavefront is " aberrated " by piston and tilt, it will still form a perfect, aberration-free image, only shifted to a different position.

If a compression test does give a low figure, and it has been determined it is not due to intake valve closure / camshaft characteristics, then one can differentiate between the cause being valve / seat seal issues and ring seal by squirting engine oil into the spark plug orifice, in a quantity sufficient to disperse across the piston crown and the circumference of the top ring land, and thereby effect the mentioned seal.

If a second compression test is performed shortly thereafter, and the new reading is much higher, it would be the ring seal that is problematic, whereas if the compression test pressure observed remains low, it is a valve sealing ( or more rarely head gasket, or breakthrough piston or rarer still cylinder wall damage ) issue.

If there is a significant ( greater than 10 %) difference between cylinders, that may be an indication that valves or cylinder head gaskets are leaking, piston rings are worn or that the block is cracked.

If we choose the shape of the control volume such that all flow in or out occurs perpendicular to its surface, then the flow of matter into the system performs work as if it were a piston of fluid pushing mass into the system, and the system performs work on the flow of matter out as if it were driving a piston of fluid.

If the electronic motor required to move the pistons which raise or lower the engine is malfunctioning, every outboard motor is equipped with a manual piston release which will allow the operator to drop the motor down to its lowest setting.

If comparable bore to stroke ratios are employed, an engine with more cylinders will have a greater piston area and a shorter stroke.

If a plug extends too far into the combustion chamber, it may be struck by the piston, damaging the engine internally.

If many brake pipe reductions are made in short succession (" fanning the brake " in railroad slang ), a point may be reached where car reservoir pressure will be severely depleted, resulting in substantially reduced brake cylinder piston force, causing the brakes to fail.

If the water in direct contact with the pressure transfer mechanism ( diaphragm or piston and the spring balancing the internal pressure ) of the regulator freezes, the mechanism will be locked in the position at which the freezing takes place, as the ice will prevent the movement required to close.

If, for example, the system expands by a piston moving in the direction of force applied by the internal pressure of a gas, then the work is counted as positive, and as this work is done by using internal energy of the system, the result is that the internal energy decreases.

If the airflow into the engine is increased-by opening the throttle plate, or by allowing the engine revolutions to rise with the throttle plate at a constant setting-the pressure drop in the venturi increases, the pressure above the piston falls, and the piston is sucked upwards, increasing the size of the venturi, until the pressure drop in the venturi returns to its nominal level.

If a comparison to piston engines and the " accepted " norm must be made and " accepted " norm being a 4 stroke piston engine.

If a bank has two consecutive piston firings it will create a high pressure area in the exhaust pipe, because two exhaust pulses are moving through it close in time.

If a force was exerted on the smaller piston, this would be translated into a larger force on the larger piston.

If the locomotive's engineer does not detect and rectify this situation at once two things will occur, first, the metal tires that surround the driving wheels will be seriously damaged ; second, the piston rods, their bearings and the other equipment associated with the reciprocating motion of the engine will be overstressed and destroyed ; the engine will literally tear itself apart, by its operation at speeds well beyond the design limitations.

If a layer of liquid is placed on top of a vertically oscillating piston, a pattern of standing waves appears which oscillates at half the driving frequency, given certain criteria of instability.

If the aircraft is turbocharged piston powered, bleed air can be scavenged from the turbocharger.

If the circumstances are faced frankly it is not reasonable to expect this to be true.

If his dancers are sometimes made to look as if they might be creatures from Mars, this is consistent with his intention of placing them in the orbit of another world, a world in which they are freed of their pedestrian identities.

If a work is divided into several large segments, a last-minute drawing of random numbers may determine the order of the segments for any particular performance.

If they avoid the use of the pungent, outlawed four-letter word it is because it is taboo ; ;

If Wilhelm Reich is the Moses who has led them out of the Egypt of sexual slavery, Dylan Thomas is the poet who offers them the Dionysian dialectic of justification for their indulgence in liquor, marijuana, sex, and jazz.

If he is the child of nothingness, if he is the predestined victim of an age of atomic wars, then he will consult only his own organic needs and go beyond good and evil.

If it is an honest feeling, then why should she not yield to it??

If he thus achieves a lyrical, dreamlike, drugged intensity, he pays the price for his indulgence by producing work -- Allen Ginsberg's `` Howl '' is a striking example of this tendency -- that is disoriented, Dionysian but without depth and without Apollonian control.

If love reflects the nature of man, as Ortega Y Gasset believes, if the person in love betrays decisively what he is by his behavior in love, then the writers of the beat generation are creating a new literary genre.

If he is good, he may not be legal ; ;

If the man on the sidewalk is surprised at this question, it has served as an exclamation.

If the existent form is to be retained new factors that reinforce it must be introduced into the situation.

If we remove ourselves for a moment from our time and our infatuation with mental disease, isn't there something absurd about a hero in a novel who is defeated by his infantile neurosis??

If many of the characters in contemporary novels appear to be the bloodless relations of characters in a case history it is because the novelist is often forgetful today that those things that we call character manifest themselves in surface behavior, that the ego is still the executive agency of personality, and that all we know of personality must be discerned through the ego.

If he is a traditionalist, he is an eclectic traditionalist.

If our sincerity is granted, and it is granted, the discrepancy can only be explained by the fact that we have come to believe hearsay and legend about ourselves in preference to an understanding gained by earnest self-examination.

If to be innocent is to be helpless, then I had been -- as are we all -- helpless at the start.

If adjectival meanings show relatively low retentiveness of stems, as I am confident will prove to be the case in most languages of the world, why should our basic lists include 15 per cent of these unstable forms, but only 8 per cent of animals and plants which replace much more slowly??

If the steel is cooled slowly, the iron will gradually change into its low temperature allotrope.

If necessary, motoring slowly around the location of the anchor also helps dislodge it.

If a person's hands are placed around the glass without touching it, the vanes will turn slowly or not at all, but if the glass is touched to warm it quickly, they will turn more noticeably.

If the water is evaporated too slowly, the electrodes will flood, preventing the reactants from reaching the catalyst and stopping the reaction.

If a hellbender ends up in an area of slowly moving water, not enough water will pass over its skin in a given time period, making it difficult to garner enough oxygen to support necessary respiratory functions.

If you push on a wall very slowly, you can actually feel your push increasing.

If the latter subgroup cools slowly from a melt, it forms exsolution lamellae because the two components — orthoclase and albite — are unstable in solid solution.

If it is smoked too slowly, this will happen more often.

If a large part of the cooking time is spent at temperatures lower than 60 ° C ( as when the contents of the cooker are slowly cooling over a long period ), a danger of food poisoning due to bacterial infection, or toxins produced by multiplying bacteria, arises.

If disturbed, they abandon the net and flap slowly away.

If the high temperature intermediate composition alkali feldspars are allowed to cool slowly, exsolution occurs and a perthite structure results.

If consolidation occurs slowly, repulsive forces drive the material apart before a significant explosion can occur.

If paper moves through the fuser more slowly, there is more roller contact time for the toner to melt, and the fuser can operate at a lower temperature.

If the pressure is allowed to slowly drop after timing ( see # Pressure release methods for details ), cooking times are even shorter.

* If a person exposes their forearm and closes their eyes or turns their head in the opposite direction while a second person slowly traces a finger from the wrist upward to the crook of the elbow, many people are unable to say when the crease of their elbow is being touched.

* If a person is lying on his / her stomach with arms stretched in front and another person raises his / her arms about 2 feet off the ground and holds them there for approximately one minute, with the person on the ground having his / her eyes closed and head hanging, then slowly lowers the arms to the ground, it will feel as if the arms are going below the level of the rest of the body.

If is too small the chain will mix slowly ( i. e., the acceptance rate will be high but successive samples will move around the space slowly and the chain will converge only slowly to ).

If you are lactose intolerant, your blood sugar levels will either rise slowly, or not at all.

If there are two people in the kitchen, one person can slowly pour the oil while the other does the whisking.

If the rate of absorption is best in the large intestine or colon, then a coating that is acid resistant and dissolves slowly would be used to ensure it reached that point before dispersing.

If the pitcher were to move at an angle but with the same speed, the variation of the frequency at which the receiver would catch the ball would be less as the distance between the two would change more slowly.