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

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

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Construction Planning and Management
Mobilization advance up to 10% of the cost of work is given to a contractor

On commencement of work at site for payment of loan taken by him
For all activities required to start the work at site on finalization of the contract document
For the purchase of construction materials
For the payment of advances to labour and other staff

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