67. Why is a drain valve installed in the fuel tank? Why is the drain valve placed at the bottom of the fuel tank?
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67. Why is a drain valve installed in the fuel tank? Why is the drain valve placed at the bottom of the fuel tank?
The contaminants in the fuel tank are mostly high-molecular-weight substances that settle at the bottom, so the drain outlet should be placed at the lower part. This ensures that the oil contamination is completely drained through the waste outlet.
The drain valve installed in the fuel tank is used to remove water and impurities that have settled in the tank. This is because water and impurities have a higher density than lubricating oil, causing them to settle at the bottom of the tank.
A drain valve is installed in the fuel tank to remove the water and impurities that accumulate there. This valve is placed at the bottom of the tank, as water and impurities have a greater density than lubricating oil, causing them to settle at the bottom of the tank.