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Refractory Technology — Test 2

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Question 1
Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?
Question 2
Carbon bricks are not used in the lining of the_________________?
Question 3
Grog addition in fireclay during brick manufacture is done to_________________?
Question 4
Which of the following does not occur during firing/burning of refractories ?
Question 5
Conversion of silica mineral to Cristobalite is accompanied by reduction in its ____________________?
Question 6
Magnesite chrome bricks are used in the___________________?
Question 7
Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material ?
Question 8
Periclase is___________________?
Question 9
RUL of refractories depends on the _____________________?
Question 10
Which one contains maximum percentage of Al2O3 ?