Mechanical Engineering Mcqs
Slack of various events on the critical path in PERT/CPM chart___________________?

A. Increases continuously
B. Decreases continuously
C. Remains constant
D. May increase or decrease depending on various factors

Pick up the correct statement. Dummy activity on a PERT/CPM chart means, it_________________?

A. Consumes time, but no resources
B. Consumes resources but no time
C. Consumes neither time nor resources
D. Is a dangling event

Activity s,lack or float of any event on a PERT/CPM chart is represented by__________________?

A. Latest start time of succeeding event -earliest finish time of preceding event activity time
B. Latest start time of the event – earliest start time of the event
C. Latest finish time of event – earliest finish time of the event
D. Anyone of the above

An event is indicated on the network by_________________?

A. A straight line
B. A number enclosed in a circle or a square
C. A straight line with circles at the ends
D. A dotted line

Positive slack on a PERT indicates that project is________________?

A. Ahead of schedule
B. Beyond schedule
C. As per schedule
D. On critical path

In a PERT chart___________________?

A. All activities should be numbered
B. Only important activities should be numbered
C. Only critical activities are numbered
D. Only selected activities are numbered

Pessimistic time is___________________?

A. The maximum time which an activity might require
B. The average time required for a job
C. The most probable time considering all conditions
D. The minimum time in which an activity can possibly be accomplished

The important file in making a PERT is__________________?

A. an event can’t be accomplished until activities leading to it are completed
B. no activity from any event can be started from preceding event till it is completed
C. length of arrow has nothing to do with time
D. every activity must be completed before end point is reached

The assumption in PERT is__________________?

A. A project will always be behind schedule, if left uncorrected
B. Cost of project will always be more than the estimated cost, if no timely corrections are taken
C. A project can be subdivided into a set of predictable, independent activities
D. Activities are fixed and can’t be changed ,