Construction Planning and Management
Wheeled tractors are replacing crawler tractors because 1. Wheeled tractors travel faster. 2. Crawler tractors are more expensive. 3. Track parts of a crawler wear out quickly. 4. Crawler tractors have stick control. of following statements

2, 3 and 4 are correct
1, 3 and 4 are correct
1, 2 and 4 are correct
1, 2 and 3 are correct

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Construction Planning and Management
In India, are prefabricated components costlier than those of traditional cast-in-situ items that the prefabricated components replace?

Yes, because of heavier overheads and handling cost
No, because of savings in site labour
No, because of repetitive manufacture of a number of elements
Yes, because of the very high order of quality control for the factory made components

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