Steam Boilers, Engines, Nozzles and Turbines
For maximum discharge through a chimney, the condition is that height of hot gas column producing the draught should be

One-half the height of chimney
Four times the height of chimney
Equal to the height of chimney
Two times the height of chimney

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
The equivalent evaporation of a boiler is a measure to compare

The two different boilers of the same make
Any type of boilers operating under any conditions
The given boiler with the model
Two different makes of boilers operating under the same operating conditions

ANSWER DOWNLOAD EXAMIANS APP