Compressors, Gas Turbines and Jet Engines
To avoid moisture troubles, the compressed air main line should

Drop gradually towards the point of use
Rise gradually towards the point of use
Be laid vertically
Be laid exactly horizontally

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Compressors, Gas Turbines and Jet Engines
Volumetric efficiency of a compressor without clearance volume

Is not dependent upon compression ratio
Increases with increase in compression ratio
Decreases with increase in compression ratio
May increase/decrease depending on compressor capacity

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Compressors, Gas Turbines and Jet Engines
Water gas is produced by

Carbonisation of coal
Passing steam over incandescent coke
Passing air and a large amount of steam over waste coal at about 65°C
Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast

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