A. Heated sufficiently
B. Burnt in excess air
C. Heated to its ignition point
D. Burnt as powder
A. Causing clinkering and slagging
B. Corroding air heaters
C. Spontaneous combustion during coal storage
D. All of the above
A. The content of sulphur
B. The content of ash and heating value
C. The proximate analysis
D. The exact analysis
A. Lowest temperature at which oil will flow under set condition
B. Storage temperature
C. Temperature at which fuel is pumped through burners
D. Temperature at which oil is transported
A. Prevent the bulging of flat surfaces
B. Avoid explosion in furnace
C. Prevent leakage of hot flue gases
D. Support furnace freely from top
A. Has high heating value
B. Retards electric precipitation
C. Promotes complete combustion
D. Has highly corrosive effect
A. Increases steam pressure
B. Increases steam flow
C. Decreases fuel consumption
D. Decreases steam pressure
A. Carbon, hydrogen, nitrogen, sulphur, moisture
B. Fixed carbon, ash, volatile matter, moisture
C. Higher calorific value
D. Lower calorific value
A. Induced draft fan
B. Smoke meter
C. Chimney
D. Precipitator
A. Chimney
B. Induced draft fan
C. Both combined A. and B.
D. Steam jet drought