Which one of the following is used for preparing porcelain clay feldspar quartz

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Question
Which one of the following is used for preparing porcelain
Options
A. clay
B. feldspar
C. quartz
D. minerals
E. All of these.

Correct Answer

All of these.

Building Materials problems

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1. Pick up the non-inflammable plastic from the following:
Options
A. Cellulose acetate plastics
B. Polyvinyl chloride plastics
C. Phenol formaldehyde plastic
D. Urea formaldehyde plastic.

2. Pig iron made from heamatite ores free from sulphur, phosphorus and copper, is known as
Options
A. Bessemer pig
B. Grey or foundry pig
C. White or forge pig
D. Mottled pig
E. All the above.

3. Veneering means
Options
A. carving out designs on timber planks
B. chemically treating timber planks
C. thick layer of superior wood glued to inferior wood
D. thin layer of superior wood glued to inferior wood.

4. Pick up the correct statement from the following:
Options
A. Bull's trench kiln a trench excavated in ground
B. Hoffman's kiln is constructed overground
C. Tunnel Kiln is constructed as a tunnel
D. All the above.

5. The sequence of refractory materials according to increasing melting points is :
Options
A. Dolomite, Magnesia, Bauxite, Chromite
B. Bauxite, Chromite, Dolomite, Magnesia
C. Magnesia, Bauxite, Dolomite, Chromite.

8. Pick up the correct statement from the following:
Options
A. Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon
B. The edges of a finished wrought iron, are rough due to red shortage
C. Pig iron (charcoal) is manufactured from magnetic ore (Fe₃O₄)
D. For the manufacture of wrought iron, non-sulphurous fuel is not necessary
E. All the above.

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