Figure 3. Intake Port, Exhaust Port and In-cylinder Pressures with Poor Tuning. The timing of the arrival of the negative wave at the back (port) side of the exhaust valve is determined by the engine RPM, the speed of sound in the pipe and the distance from the valve to the relevant change in area.
Fault (geology) In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock-mass movement.
Posted July 29, 2010 9:19pm. Fault and liability refer to responsibility for an accident and the obligation to make amends, usually by paying for damages caused. The person who caused the accident is at fault and is liable for any resulting injuries or property damage. Typically, a person is at fault due to: Negligence: carelessly or unthinkingly doing something that most reasonable people would foresee causing harm.