Construction Planning and Management
A four wheel truck or whose operating weight is 12000 kg is pulled along a road having a rising slope of 2% at a uniform speed. Assume grade resistance factor = 10 kg/tonne. The tension in the tow cable is 720 kg. The rolling resistance of the road will be

20 kg/tonne
40 kg/tonne
50 kg/tonne
30 kg/tonne

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Construction Planning and Management
Whenever an activity has zero total float, then

Free float and independent float both need not be zero
Free float and independent float both must be zero
Free float of the activity must be zero but independent float need not be zero
Independent float must be zero but free float need not be zero

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Construction Planning and Management
A contractor has two options;(l) : Invest his money in project A or (II) : Invest his money in project B. If he decides to invest in A, for every rupee invested, he is assured of doubling his money in ten years. If he decides to invest in B, he is assured of making his money 1.5 times in 5 years. If the contractor values his money at 10% interest rate, he

should invest in project B
could invest in either of the two projects
should invest in neither of the two projects
should invest in project A

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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?

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

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