Casting Direct Arc Furnace Online Exam Quiz
Casting Direct Arc Furnace GK Quiz. Question and Answers related to Casting Direct Arc Furnace. MCQ (Multiple Choice Questions with answers about Casting Direct Arc Furnace
What is the capacity of a largest direct arc furnace?
Options
A : 110 tons
B : 115 tons
C : 125 tons
D : 140 tons
What would be the amount of current carried by the electrode for a direct arc furnace having capacity 50 tons?
Options
A : 25 kilo amperes
B : 25 mega amperes
C : 25 micro amperes
D : 25 nano amperes
What is the maximum transformer power supply needed by the direct arc furnace?
Options
A : 35,000 kVA
B : 40,000 kVA
C : 45,000 kVA
D : 50,000 kVA
How much is the thermal efficiency of a direct arc furnace?
Options
A : 50%
B : 60%
C : 70%
D : 80%
What is the minimum transformer power supply needed by the direct arc furnace?
Options
A : 600 kVA
B : 700 kVA
C : 800 kVA
D : 900 kVA
Which material is used for making the roof of an acid lined furnace?
Options
A : Silica
B : Dolomite
C : Magnesite
D : Carbon tetrachloride
Basic refractories are costlier than acid refractories.
Options
A : True
B : False
C :
D :
Roofs of the furnace have a small life.
Options
A : True
B : False
C :
D :
What is typically the diameter of a direct arc furnace?
Options
A : Up to 5m
B : Up to 6m
C : Up to 7m
D : Up to 8m
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