The charge of the blast furnace consists of

A Calcined ore (8 parts), coke (4 parts) and limestone (1 part)
B Calcined ore (4 parts), coke (1 part) and limestone (8 parts)
C Calcined ore (1 part), coke (8 parts) and limestone (4 parts)
D Calcined ore, coke and limestone all in equal parts

Correct Answer: Calcined ore (8 parts), coke (4 parts) and limestone (1 part)

The charge of the blast furnace consists of Calcined ore (8 parts), coke (4 parts) and limestone (1 part)
Bissoy MCQ
#Mechanical Engineering #Engineering Materials

Related Questions

In the blast furnace, incorporation of water vapour in the blast gives the following effect.
A Increases the reducing potential of the gas
B Increases the flame temperature
C No significant change occurs
D Increases the hydrogen content in the metal
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
A 20
B 40
C 60
D 80
Operation of blast furnace stove is based on the principles of a __________ furnace.
A Regenerative
B Recuperative
C Both A and B
D Neither A nor B
The charge is fed into the blast furnace through the
A Stack
B Throat
C Bosh
D Tyres
The main charge in blast furnace is usually
A Iron ore & coke
B Iron ore, coke & air
C Limestone, coke & iron ore
D Limestone, sand & iron ore
Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?
A Sinter
B Coke
C Iron ore
D Limestone
The coke in the charge of blast furnace
A Controls the grade of pig iron
B Acts as an iron bearing mineral
C Supplies heat to reduce ore and melt the iron
D Forms a slag by combining with impurities
An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.
A Resistance
B Arc
C Low frequency induction
D None of these
Abrasion index of blast furnace coke should be around __________ percent.
A 20
B 35
C 80
D 55
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight
A 1.5
B 3
C 5
D 7

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