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Statement (I): Time-Cost Study for the project must be adopted only when project duration is to be crashed. Statement (II): When there are unmanageable restrictions in realizing a predetermined resource histogram Time-cost Study may have to consider extension of project duration as well.

Statement (I): Time-Cost Study for the project must be adopted only when project duration is to be crashed. Statement (II): When there are unmanageable restrictions in realizing a predetermined resource histogram Time-cost Study may have to consider extension of project duration as well. Correct Answer Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Crashing of project duration:

Crashing of project duration means that increasing the direct cost of the project and reducing the in direct cost of project. Therefore, to reach an optimum cost of a project, time-cost study is used in the Critical Path Method (CPM). 

Resource histogram is the graph between number of resource required and time. It is prepared before the beginning of construction activities. 

∴ Both statements are individually true.

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