Steam Boilers, Engines, Nozzles and Turbines
Which is not the correct statement about moisture in coal?

In some coals moisture may be present up to 40%
It increases thermal efficiency
Inherent moisture and surface moisture are different things
Some moisture in coal helps in better burning which is not possible with completely dry coal

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Steam Boilers, Engines, Nozzles and Turbines
Besides mean effective pressure, the data required to determine the indicated power of an engine include

Specific fuel consumption, speed of rotation and torque
Piston diameter, length of stroke and calorific value of fuel
Piston diameter, length of stroke and speed of rotation
Piston diameter, specific fuel consumption and Calorific value of fuel

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