11) In PERT analysis, event means
a) start or finish of a task
b) time taken for a task
c) end of an activity
d) work involved in the project
12) The most likely time (m) is ‘mode’ of the
a) Normal distribution
b) Beta distribution
c) Bionomial distribution
d) None of the above
13) Which of the following represents the reduction in duration ?
a) Crashing
b) Negative slack
c) Variance
d) All of the above
14) Updating may result in
a) change of critical path
b) decrease of project completion time
c) increase of project completion time
d) all of the above
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15) The CPM network is updated
a) At regular intervals
b) At fixed times
c) At any time
d) Whenever there is difference in the planned and actual performance
16) Which of the following earth moving machines has the shortest cycle time ?
a) Drag line
b) Hoe
c) Clam shell
d) Dipper shovel
17) For a given size of bucket, the ideal output of a dragline will be least in
a) moist loam
b) Sand and gravel
c) Good common earth
d) Wet sticky clay
18) For three-dimensional movement of a weight, which one of the following is most suitable ?
a) Chain hoist
b) Winch
c) Crane
d) Jack
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19) Which of the following earth moving machines has the shorter cycle time ?
a) Drag line
b) Hoe
c) Clam shell
d) Dipper shovel
20) The basic action involved in sheep foot rolling is
a) kneading
b) pressing
c) tamping
d) vibration