21. |
________________ is used to excavate the trenches of width from 250 mm to 450 mm and depth 4 m with accuracy and speed.
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Answer:
Option (d) |
22. |
____________ type Trencher can dig a trench up to 10 m in depth and 4 m in width.
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Answer:
Option (c) |
23. |
___________________ are used for vertical transportation of aggregates and wet concrete on large project sites.
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Answer:
Option (a) |
24. |
In order to raise and shift heavy loads from one place to another, the _________ are employed in the construction of big works.
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Answer:
Option (c) |
25. |
________________ crane is used for open sites and it possesses a very long reach.
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Answer:
Option (b) |
26. |
In _________________ type of crane, heavy temporary staging or platform is prepared for the working of the crane.
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Answer:
Option (c) |
27. |
________________ are cranes of Swing jib type and are mounted on high Steel Towers.
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Answer:
Option (c) |
28. |
Which process comes after batching in manufacture process?
|
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Answer:
Option (c) |
29. |
Ready mix plant and central mix plant differ in:
|
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Answer:
Option (d) |
30. |
How many methods of batching are there?
|
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Answer:
Option (a) |