Hamad Refractory Technology 05/12/2021 A. Silica bricks B. Fireclay bricks C. High alumina bricks D. Tar dolomite bricks Related Mcqs: Silicon carbide refractories have very low ___________________?A. Refractoriness (< 1700°C) B. Thermal conductivity C. Resistance to thermal shock D. None of these... Thermal spalling mainly occurs during _____________ of furnaces?A. Cooling down B. Warming up C. Both A. & B. D. Neither A. nor B.... Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?A. 1520 B. 1630 C. 1670 D. 1730... Cold crushing strength of refractories depends upon its_________________?A. Composition B. Texture C. Firing temperature D. All A., B. and C.... Furnace atmosphere for softening temperature determination of refractories (in which Seger Cones are placed) should be __________________?A. Oxidising B. Neutral C. Either A. or B. D. Neither A. nor B....
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