BCM Construction Scheduling and Planning 2

Question 1

The Program Evaluation and Review Technique (PERT) differs from CPM primarily because PERT:

Accepted Answer

Uses three time estimates to account for schedule uncertainty

Answer

PERT uses optimistic, most likely, and pessimistic durations to calculate a weighted average activity duration, accounting for uncertainty in scheduling.

Question 2

In PERT analysis, the expected duration (te) of an activity is calculated using the formula:

Accepted Answer

te = (O + 4M + P) / 6

Answer

The PERT formula te = (O + 4M + P) / 6 weights the most likely estimate four times more than the optimistic or pessimistic estimates.

Question 3

Which scheduling technique is best suited for highly repetitive construction operations such as high-rise building construction?

Accepted Answer

Line of Balance (LOB)

Answer

Line of Balance (LOB), also called Linear Scheduling Method, is ideal for repetitive work because it shows the rate of production and crew continuity on a time-location diagram.

Question 4

Schedule compression through 'Crashing' involves:

Accepted Answer

Adding resources to critical path activities to shorten their duration at additional cost

Answer

Crashing shortens the project schedule by adding resources (overtime, additional crews) to critical path activities, which increases direct costs.

Question 5

Fast-tracking as a schedule compression technique involves:

Accepted Answer

Overlapping phases or activities that were originally planned in sequence

Answer

Fast-tracking overlaps activities (e.g., starting construction before design is complete) to compress the schedule, which increases risk of rework.

BCM - Bachelor of Construction Management Practice Test

BCM - Bachelor of Construction Management Practice Test

BCM Construction Scheduling and Planning 2