Engineering :: Building Materials
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21. |
The specific gravity of stone should not, in any case be less than |
Answer: Option D
Explanation:
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22. |
Which of the following statements is wrong? |
A. |
A stone with large percentage of quartz is very soft. |
B. |
Quartz has a greasy lustre. |
C. |
Felspar is a silicate of aluminium with varying amounts of potash, soda or lime. |
D. |
all of these |
Answer: Option A
Explanation:
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23. |
Siliceous rocks have alumina or clay as their major constituent. |
Answer: Option A
Explanation:
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24. |
Argillaceous rocks have their main constituent as |
A. |
carbonates of lime |
B. |
clay or alumina |
C. |
silica or sand |
D. |
all of these |
Answer: Option B
Explanation:
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25. |
The colour of granite is |
A. |
grey |
B. |
green |
C. |
brown |
D. |
all of these |
Answer: Option D
Explanation:
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26. |
A fine-grained granite |
A. |
offers higher resistance to weathering |
B. |
can be easily polished and worked |
C. |
is used for exterior facing of buildings |
D. |
all of these |
Answer: Option D
Explanation:
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27. |
A limestone found in seams of great thickness in non-crystalline texture with earthy appearance, is called |
A. |
granular limestone |
B. |
compact limestone |
C. |
magnesium limestone |
D. |
lankar |
Answer: Option B
Explanation:
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28. |
A limestone containing about 30% of alumina and silica is called |
A. |
granular limestone |
B. |
compact limestone |
C. |
magnesium limestone |
D. |
kankar |
Answer: Option D
Explanation:
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29. |
The compressive strength of sandstone is |
A. |
40 MN/m2 |
B. |
55 MN/m2 |
C. |
65 MN/m2 |
D. |
80 MN/m2 |
Answer: Option C
Explanation:
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30. |
The specific gravity of sandstone is |
A. |
1.1 to 1.8 |
B. |
1.8 to 2.65 |
C. |
2.65 to 2.95 |
D. |
2.95 to 3.4 |
Answer: Option C
Explanation:
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