Civil Engineering - Building Materials
Exercise :: Building Materials - Section 2
46. |
For the manufacture of plywood, veneers are placed so that grains of adjacent veneers |
A. |
run at right angles | B. |
parallel | C. |
inclined at 45° | D. |
inclined at 60°. |
Answer: Option A
Explanation:
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47. |
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than |
Answer: Option C
Explanation:
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48. |
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively: |
A. |
15, 75, 10 | B. |
75, 10, 15 | C. |
10, 15, 75 | D. |
10, 75, 15. |
Answer: Option A
Explanation:
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49. |
Geologically, marble is known as |
A. |
sedimentary rock | B. |
igneous rock | C. |
metamorphic rock | D. |
stratified rock. |
Answer: Option C
Explanation:
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