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Civil Engineering - Building Materials

Exercise : Building Materials - Section 6
21.
To give a brilliant finish, the type of varnish used, is
water varnish
spirit varnish
turpentine varnish
oil varnish
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Pick up the correct statement from the following:
Bull's trench kiln a trench excavated in ground
Hoffman's kiln is constructed overground
Tunnel Kiln is constructed as a tunnel
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The softest rock is
marble
diamond
talc
quartz.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Bitumen may be dissolved in
carbondioxide
water
sodium chloride
carbon disulphide
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Pick up the correct statement from the following:
Rusting is caused due to combined action of air, moisture and carbon dioxide
During rusting, first ferrous bicarbonates are formed
On further oxidation ferrous bicarbonates get converted to ferric bicarbonates
Ultimately hydrated ferric oxide is formed during rusting and carbon dioxide gets liberated
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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