Thursday, October 8, 2015

Refractory - II Government Polytechnic DHM 2010 Question Paper

Exam Board: Government Polytechnic
Question Paper Course: Diploma Hospital Management
Subject of Question Paper: Refractory - II
Time allotted: 3 Hours
Max. Marks: 70
Year of the exam paper: 2010
Question Paper Format: Text

Q.1 (a) Describe in detail about use of refractory in various industries. 07
(b) Describe about classification of Refractory. 07

Q.2 (a) Give detail various 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) Describe 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) Give reasons for failure of refractory products. 07
(b) Describe (a) Bulk density (b) Abrasion resistance 07
OR
Q. 4 (a) What is "PCE" ? Give in details. 07
(b) Describe (a) Thermal Conductivity (b) Spalling resistance 07

Q.5 (a) Describe about strength of refractory products. 07
(b) Scope of refractory industries in India. 07
OR
Q.5 (a) Give general properties and application of Fire Clay. 07
(b) Give general properties and application of Boxite. 07

Duraimani

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