Civil Engineering - Building Materials

26.
Seasoning of timber is done for
increasing moisture content
decreasing moisture content
increasing strength of timber
none to these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
Bitumen felt is used for
water proofing
damp proofing
both (a) and (b)
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
According to ISI, bitumen is classified into
2 grades
4 grades
6 grades
8 grades.
10 grades.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
Lime putty
is made from hydraulic lime
is made by adding lime to water
can be used only upto three days
may be obtained from drying lime water mix passing through IS sieve No. 300
all of above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is
20
15
10
5
0.
Answer: Option
Explanation:
No answer description is available. Let's discuss.