NO.20 The color of stripe for 304L alloy material of metallic anchor is

NO.21 The functions of refractories include resistance to other destructive influences such as abrasion, pressure, chemical attack, and or rapid changes in temperature is called.

NO.22 The exposure of a material or body to a rapid change in temperature which may have a deleterious effect

NO.23 Spalling of layers from the hot surface of a refractory lining is called

NO.24 A group of rock minerals having nearly perfect cleavage in one direction and consisting of thin elastic plates and the most common varieties are muscovite and biotite is called

NO.25 Refractories means

NO.26 Compositions of ground refractory materials which require relatively high temperatures for the development of an adequate bond (commonly called the ceramic bond) is called

NO.27 Test panels for pneumatic gunning are inclined above the horizontal at an angle of

NO.28 Blanket, Module, Bulk paper, rope, and vacuum formed shaped are:

NO.29 The most common sizes in thickness for hex mesh are

NO.30 The color of stripe for Inconel 600 alloy material of metallic anchor is

NO.31 Testing frequency for material qualification of refractory for erosion service requires

NO.32 Applicator qualification for thin layer erosion resistant lining, each applicator shall pack a test panel of size.

NO.33 Cristobalite is an important constituent of

NO.34 Forms (types) of refractory

NO.35 Hex mesh supplied in flexible rolls and ready fit to a curved surfaces is called

NO.36 To compose a sample for the CCS test from an equivalent number of refractory shapes the specimen should be

NO.37 The vessel downstream of the reactor used to separate different product fractions is called

NO.38 A metallic anchor used to attach ceramic anchors to the casing or shall of a processing unit is

NO.39 Pre-turn around planning means