Government Polytechnic 2010 Diploma in Hospital Management Glass-ii - Question Paper

Q.1 (a) What is glass? and provide classification of glass. 07
(b) discuss properties of glass and uses of glass. 07
Q.2
(a) discuss various kind of raw materials used in glass industries. 07
(b) discuss function of sio2, B2o3, Cao, Mgo during glass melting. 07
OR
(b) discuss role of Glass former, Glass intermediate and Glass modifier
in glass melting.
07
Q.3
(a) discuss manufacturing process of sheet glass by Foucault process. 07
(b) What is Plate glass? discuss any 1 manufacturing process of plate
glass.
07
OR
Q.3 (a) define manufacturing process of glass tube. 07
(b) obtain out batch recipe of a glass having the subsequent chemical
composition. SiO2-70%, B2O3-12%, Na2O-15%, CaO-3% where
molecular weight of Si-28, B-10.81, Na-23, Ca-40, O-16.
07
Q.4
(a) define properties and use of optical glass. 07
(b) discuss manufacturing process of optical glass. 07
OR
Q. four (a) discuss various kinds of furnaces used in glass industries. 07
(b) What is tank furnace? discuss different parts of glass tank furnace. 07
Q.5
(a) discuss physical and mechanical properties of glass. 07
(b) What is density? discuss density determination technique of glass. 07
OR
Q.5 (a) define various kinds of glass decoration techniques and discuss
etching process.
07
(b) discuss reasons of any 4 defects occur in glass industries with
their remedies.

Earning:   Approval pending.