Water content in ground refractory material to be shaped into bricks by hand moulding is about ______________ percent?

Related Mcqs:

1. Maximum water percentage in refractory mix meant for hand moulding may be as high as _____________ percent?

   A. 2-3 B. 5-7 C. 7-12 D. 14-20...

2. Mixing of ground refractory material and water is done in a ______________ mill?

   A. Pug B. Ball C. Tube D. Rod...

3. Maximum alumina content in high alumina refractory can be as high as _____________ percent?

   A. 30 B. 50 C. 70 D. 90...

4. Sillimanite (Al2O3.SiO2) refractory, which is a neutral refractory, is not used in________________?

   A. Pottery furnace B. Glass melting furnace C. Crucibles D. Gas retorts...

5. Hollow refractory bricks are made by___________________?

   A. Slip casting B. Hand moulding C. pressing/machine moulding D. Extrusion...

6. High density refractory bricks have lower__________________?

   A. Spalling resistance B. Thermal conductivity C. Fusion point D. Slag penetration resistance...

7. High refractoriness of refractory bricks means, that it has a________________?

   A. High spalling resistance B. Low spalling resistance C. High resistance to fusion D. Low porosity...

8. High alumina refractory compared to fireclay bricks have____________________?

   A. Less load bearing capacity B. Less resistance to slag attack C. Low refractoriness D. High resistance to thermal shock and creep...

9. Refractory bricks with lower permeability is produced by using __________________?

   A. Higher firing temperature B. Higher moulding pressure C. Finer grog size D. All A., B. and C....

10. Refractory bricks having lower porosity have_________________________?

    A. High insulating properties B. Low heat capacity C. Low thermal conductivity D. Greater strength...