Chemical Engineering MCQs

A. 20
B. 40
C. 60
D. 80

A. Saving in fuel consumption
B. Reduction in scale losses
C. Increase in flame temperature
D. All a., b. and c.

A. 10
B. 25
C. 65
D. 90

A. 20
B. 40
C. 65
D. 80

A. Ton stock/hr/m2 hearth area
B. Ton stock/hr
C. Ton stock/m2 hearth area
D. Both b. and c.

A. Weight heated/hr
B. Weight heated/furnace volume
C. Weight heated/hr/furnace volume
D. None of these

A. Electricity
B. Blast furnace gas/mixed gas
C. Coke oven gas
D. Both b. and c.

A. Physical nature, ash content and fineness of the coal
B. Amount of excess air supplied and load on the boiler
C. Type of burner and combustion chamber
D. All a., b. and c.

A. Conduction
B. Convection
C. Radiation
D. Cannot be predicted

A. Use of coal/coke containing a high % of fines and ash
B. Use of fuel having too low an ash fusion temperature
C. Development of hot spots in the fuel bed and an abnormally high rate of gasification
D. All a., b. and c.