Refractory Technology Mcqs for Chemical

Q.  Zircon refractories have__________________?

a. Low co-efficient of expansion
b. High RUL (1600°C) and refractoriness (> 2000°C)
c. High spalling resistance
d. All A., B. and C.


ANSWER: See Answer
 
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MCQs:  Refractoriness of a typical silica brick corresponds to Segar cone number, ’32’, which is equivalent to a temperature of _____________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  With increase in the alumina content in firebricks, its fusion point (refractoriness) ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Insulating refractories should have_______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which is the stable form of silica below 870°C ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which of the following is not a neutral refractory ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Firing temperature is minimum (1250-1400 °C) for _______________ bricks?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Electrical resistor bars are made of _______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Refractories are dried in the _______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  An indication of degree of firing in silica brick is its____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Which is not an alumino-silicate refractory ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Resistance to slag attack of a refractory _____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Fireclay bricks are never used in the______________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Magnesite bricks are used in those parts of furnaces, which are __________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  High thermal conductivity of a refractory material is not important, when it is to be used in the______________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Basic bricks are not made of ___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  A steel member used in the furnace construction to take the thrust of the brickwork is called___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Hollow refractory bricks are made by___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Refractoriness/fusion points of ‘Superduty’ refractories is _______________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts