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An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture?
Silliminite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in
Refractory timber catches fire readily while non-refractory timber does not catch fire readily.
Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory
If a refractory contains high content of silicon, it means refractory is
Ceramics make excellent refractory materials. A material is said to be refractory if it:
A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K For the same temperature drop and heat loss, this refractory wall can be replaced by a layer of diatomaceous earth of thermal conductivity 0.14 W/m.K and thickness __________ metre.
In the following Visual Basic code, what will be in msg, if str contains "visual basic"?
Dim str as StringDim msg as StringIf str.toUpper="VISUAL BASIC" msg="VB.Net"Else msg="Not Visual Basic"EndIf
Which one of the following is not a basic refractory?
Which is a basic refractory?