locomotive engineer license

The EGR system routes a number of the exhaust gases (6 ? 10%) over the EGR valve, in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they cannot burn within the combustion chamber; also, the exhaust gases take up many of the space which will rather be taken from the intake air. This reduces the level of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions. It is clear that these two perspectives are going to draw swords against the other frequently. Although most people agree that efficient financial markets are best for everyone, the steps that government have to take to have there often run counter for the microeconomic interests of business. Sometimes a merger should be blocked to foster competition. Sometimes disclosures must be legislated to ensure consumers will make informed decisions. And sometimes certain activities should be regulated or prohibited to ensure that some are certainly not financially harmed by others.