iii) Choose the incorrect statement. (a) The boiler efficiency can be greater than 100%. (b) The greater the losses, the lower the boiler efficiency. (c) The boiler efficiency will be greater if it is defined based on the higher heating value. (d) The greater the exhaust gas temperature, the lower the boiler efficiency.

v) If a hydrocarbon (HC) fuel is burned with excess air in a boiler with complete combustion, which component cannot be found in exhaust gases?

(a) Carbon dioxide (b) Carbon monoxide (c) Oxygen (d) Water (e) Nitrogen

vi) Methane is burned with air in a boiler. Which loss is not included among the boiler losses?

(a) Incomplete combustion loss (b) Moisture in air loss (c) Moisture in fuel loss (d) Radiation loss (e) Exhaust gas loss

vii) The moisture in fuel loss may be calculated as part of

(a) Incomplete combustion loss (b) Moisture in air loss (c) Blowdown loss (d) Radiation loss

(e) Exhaust gas loss