Related Questions

Faster rate of drying of moulded refractories results in high __________ of refractories.
A Green strength
B Voids
C Shrinkage
D Both B and C
Spray test determines the __________ of refractories.
A Resistance to slag penetration
B Resistance to CO attack
C RUL
D Permanent linear change
You have configured a Group Policy Object (GPO) for the marketing oranization unit (OU) to prevent users from accessing My Network Places and from running System in Control Panel. You want the Managers Domain Local Group to be able to access My Network Places, but you still want to prevent them from running System in Control Panel. What should you do?
A Add the Managers group to the access control list of the GPO. Disable the permission of the managers group to read and apply the Group Policy
B Add the Managers group to the access control list of the GPO. Deny the permission of the managers group to read and apply the Group Policy
C Create a second GPO in the OU. Add the Managers group to the access control list. Allow the managers group to apply the Group Policy. Deny the Authenticated Users group permission to read and apply th
D Create a second GPO in the OU. Add the Managers group to the access control list. Allow the managers group to apply the Group Policy. Disable the Authenticated Users group permission to read and apply
E None of above
Except __________ , all other refractories are bad conductors of electricity (i.e, have low electrical conductivity).
A Fireclay
B Carborundum
C Graphite
D Chromite
Presence of MgO in alumino-silicate refractories __________ its refractoriness.
A Increases
B Lowers
C Does not affect
D Either A or B; depends on its quantity
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent.
A 55
B 70
C 80
D 90
Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent.
A 10
B 15
C 20
D 30
Porosity of fireclay refractories is __________ percent.
A 5-10
B 10-25
C 25-35
D 35-50
The largest consumer of refractories is the __________ industry.
A Cement
B Metallurgical
C Fertiliser
D Power
Refractories used in/for __________ should have low thermal conductivity.
A Coke ovens
B Insulation
C Regenerators
D Muffle furnaces

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