locomotive boiler working

Exhaust gases are generated from the combustion chamber after the air-fuel mixture is burnt through the Power Stroke. These exhaust gases are "thrown out" in the combustion chamber through the Exhaust Stroke. The exhaust gases, including NOx, move through the Exhaust Valve, the Exhaust Passages and finally towards the atmosphere over the Exhaust System. The woodwind section will glare at the drummers. The brass section sticks their noses in the air at them. And then they move out around the field 1 day with no drum line and guess what happens? No one can march for the life of them. No one can keep their steps. Lines are squiggling back and forth. Formations that were once crisp and defined have become sluggish and bloated looking. That perfectly formed capital 'O' this guitar rock band worked so hard on yesterday now resembles a half-hearted 'U'. What is wrong with everybody?