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:
|
| 47. |
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than |
Answer: Option C
Explanation:
|
| 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:
|
| 49. |
Geologically, marble is known as |
| A. |
sedimentary rock | | B. |
igneous rock | | C. |
metamorphic rock | | D. |
stratified rock. |
Answer: Option C
Explanation:
|
