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

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

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet and exit respectively and β₁ and β₂ are the moving blade angles at entrance and exit respectively, then

α₁ < β₁ and α₂ > β₂
α₁ = β₂ and β₁ = α₂
α₁ = α₂ and β₁ = β₂
α₁ = β₁ and α₂= β₂

ANSWER DOWNLOAD EXAMIANS APP