Construction Planning and Management
Consider the following statements for a power shovel:
(i) Output can be increased by reducing the angle of swing for a given depth of cut.
(ii) For a given angle of swing, output will be maximum at optimum depth of cut.
(iii) Output can be increased by keeping the depth of cut less than optimum depth.
(iv) Output can be increased by increasing the size of shovel.

(i), (ii) and (iv) are correct
(ii), (iii) and (iv) are correct
(i), (iii) and (iv) are correct
(i) and (iv) are correct

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

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Construction Planning and Management
Output of a bulldozer is (i) Increased if drawbar HP of the tractor is increased for a given hauling distance (ii) Decreased if drawbar HP of the tractor is increased for a given hauling distance (iii) Increased if the hauling distance is increased for a given drawbar HP of the tractor (iv) Decreased if the hauling distance is increased for a given drawbar HP of the tractor

(i) and (iii) are correct
(ii) and (iii) are correct
(i) and (iv) are correct
(ii) and (iv) are correct

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Construction Planning and Management
Earliest finish of an activity is always

Greater than or equal to earliest event time of the following node
Less than earliest event time of the following node
Greater than earliest event time of the following node
Less than or equal to earliest event time of the following node

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