Refractory Technology - Study Mode
[#86] Grog addition in fireclay during brick manufacture is done to
Correct Answer
(D) All of the above
[#87] The maximum linear expansion of silica bricks during firing is about __________ percent.
Correct Answer
(D) 3.5
[#88] The highest melting pure oxide (m.p. > 3000°C) is
Correct Answer
(A) Thoria
[#89] Dolomite bricks have good resistance to attack by
Correct Answer
(A) Molten steel
[#90] Mullite is chemically represented by
Correct Answer
(B) 3Al 2 O 3 .2SiO 2