Engineering - Civil Enginnering
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| 19. |
Crushing strength of a good building stone should be more than
|
| A. |
50 MPa |
B.
|
100 MPa |
|
C.
|
150 MPa
|
D.
|
200 MPa
|
|
Answer: Option B
Explanation:
|
| 20. |
Specific gravity for most of the building stones lies between
|
| A. |
1.5 to 2.0 |
B.
|
2.0 to 2.5 |
|
C.
|
2.5 to 3.0
|
D.
|
3.0 to 3.5
|
|
Answer: Option C
Explanation:
|
| 21. |
Spalling hammer is used for
|
| A. |
driving wooden headed chisels |
B.
|
rough dressing of stones |
|
C.
|
carving of stones
|
D.
|
breaking small projection of stones
|
|
Answer: Option B
Explanation:
|
| 22. |
Cross cut saw is used for
|
| A. |
cutting soft stones |
B.
|
cutting hard stones |
|
C.
|
cutting large blocks of stones
|
D.
|
dressing stones
|
|
Answer: Option B
Explanation:
|
| 23. |
Sapwood consists of
|
| A. |
innermost annular rings around the pith |
B.
|
portion of timber between heartwood and cambium layer |
|
C.
|
thin layers below the bark
|
D.
|
thin fibre which extends from the pith outwards and holds the annular rings together
|
|
Answer: Option B
Explanation:
|
| 24. |
Which of the following trees yields hard wood ?
|
| A. |
deodar |
B.
|
chir |
|
C.
|
shishum
|
D.
|
pine
|
|
Answer: Option C
Explanation:
|
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