Government Polytechnic 2010 Diploma in Hospital Management Refractory - II - Question Paper

Q.1 (a) define in detail about use of refractory in different industries. 07
(b) define about classification of Refractory. 07
Q.2
(a) provide detail different process of manufacturing of refractory products. 07
(b) Write manufacturing process of fire bricks. 07
OR
(b) Write manufacturing process of magnesite bricks. 07
Q.3
(a) Properties and use of mulite refractory. 07
(b) define effect of heat on Silica. 07
OR
Q.3 (a) Properties and use of zirconia refractory 07
(b) How to determine shrinkage of Refractory bricks. 07
Q.4
(a) provide reasons for failure of refractory products. 07
(b) define (a) Bulk density (b) Abrasion resistance 07
OR
Q. four (a) What is "PCE" ? provide in details. 07
(b) define (a) Thermal Conductivity (b) Spalling resistance 07
Q.5
(a) define about strength of refractory products. 07
(b) Scope of refractory industries in India. 07
OR
Q.5 (a) provide general properties and application of Fire Clay. 07
(b) provide general properties and application of Boxite. 07

Earning:   Approval pending.