Building Materials - Section 7 Multiple Questions and Answers.




41.Granite mainly composed of quartz and felsper particles, is obtained from
A. sedimentary rocks
B. metamorphic rocks
C. igneous rocks
D. all the above.

42.Bullet proof glass is made of thick glass sheet sandwiched by a layer of
A. steel
B. stainless steel
C. high test plastic
D. chromium plate.

43.Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called
A. Bessemer pig
B. Grey or foundry pig
C. White or forge pig
D. Mottled pig

44.Refractory bricks are
A. neutral refractory bricks
B. acid refractory bricks
C. basic refractory bricks
D. all the above.

45.Porcelain is used as :
A. sanitary wares
B. electric insulators
C. storage vessels
D. All of the above.

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