Refractory Technology Mcqs for Chemical

Q.  Spalling resistance of a refractory cannot be increased by ____________________?

a. Increasing its porosity
b. Using a coarser grog during its manufacture
c. Decreasing its thermal co-efficient of expansion
d. Making it denser


ANSWER: See Answer
 
No explanation is available for this question!
TasDia Network - Mcqs | Signature | Lyrics
MCQs:  Carbon refractories_____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Natural silica___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Spalling tendency of refractories is reduced by increasing its_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which is not a high alumina refractory ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which brick undergoes maximum shrinkage on drying ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  10 to 30% magnesite is added to Chromite to produce chrome-magnesite refractories. Magnesite addition is mainly done to improve the _____________ of Chromite?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Furnace atmosphere for softening temperature determination of refractories (in which Seger Cones are placed) should be __________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Ramming masses are used for____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pyrometric cone equivalent (PCE) of a refractory is the measure of its_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Addition of grog in fireclay brick during its manufacture is advantageous, because it results in_____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Use of higher percentage of lime for bonding silica bricks, reduces their__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Magnesite chrome refractories____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  ‘Super refractories’ are made from pure____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, because of its_______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Maximum safe working temperature for fireclay bricks is about __________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which is the stable form of silica between 1470°C and the melting point 1713°C ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Cold crushing strength of a refractory does not depend upon its ____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Thoria__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Chromite refractories are_____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts