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Civil Engineering - Building Materials

Exercise : Building Materials - Section 3
31.
Pick up correct statement from the following:
Fibre boards are used for thermal and acoustic control
Fibre boards are used for light weight standing members
Fibre boards are obtained by impregnating a resin product on fibres
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Quartzite, a metamorphic stone is
hard
brittle
crystalline
compact
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Pick up the correct statement from the following:
Plastics have generally low melting point
The coefficient of thermal expansion of plastics is about three times than that of steel
The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Dextrin is
animal glue
starch glue
albumin glue
rubber based adhesive
none to these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Formula for quick lime, is
CaCO3
CaO
CO3CO2
none to these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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