A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed, preferably using a written, pre-defined, protocol of observations and experiments.
Process Engineer Salary. A Process Engineer earns an average salary of $70,876 per year. A skill in Simulation is associated with high pay for this job. Most people move on to other jobs if they have more than 20 years' experience in this field. $52,970 - $97,247.
Mechanical engineer salary range for the middle 50% is between $55,680 and $89,910. Mechanical engineer salaries for the lowest 10% are less than $44,580.Mechanical engineer salaries for the highest 10% are more than $112,740. Median annual mechanical engineer salary in the industries employing the largest numbers are:echanical engineer starting salary for BSME graduates averages $59,180. New MSME graduates have an avererage starting salary of $66,720, and new PhDs have an average starting salary of $85,640.