| 31. |
Gypsum is a
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Answer:
Option (c) |
| 32. |
Seasoning of timber is done
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Answer:
Option (d) |
| 33. |
Which of the following is a rock?
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|
Answer:
Option (c) |
| 34. |
Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
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|
Answer:
Option (a) |
| 35. |
Cast iron contains carbon approximately
|
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|
Answer:
Option (a) |
| 36. |
Which of the following trees yields hard wood?
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|
Answer:
Option (c) |
| 37. |
First class timber has an average life of
|
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|
Answer:
Option (d) |
| 38. |
Bitumen may be dissolved in
|
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|
Answer:
Option (d) |
| 39. |
Which of the following ingredients of the brick earth enables the brick to retain its shape?
|
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|
Answer:
Option (b) |
| 40. |
Veneering means
|
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|
Answer:
Option (c) |