Project Planning, Construction Management, Site Development and Econ Flashcards
When time is a huge factor in construction, which type of procurement method should be used?
Cost-plus fixed fee
What happens in cost -plus fixed fee procurement method?
The Contractor is paid for material, labor and overhead in addition to a fixed-fee. This encourages the contractor to be as efficient as possible because the faster the project is completed the more profit is earned
What happens in cost plus percentage fee?
The contactor makes more profit based on how expensive the project is
add more
In a mass diagram of earthwork the Abscissa (x-axis) represents?
Stations
In a mass diagram of earthwork the ordinate (y-axis) represents?
The cumulative corrected algebraic sums of volumes of earthwork / cubic yards (excavation and embankment)
on AOA networks, what does TF mean and how is it calculated
TOTAL FLOAT, TF = LF - EF
(TOTAL FLOAT EQUALS LATE FINISH MINUS EARLY FINISH)
on AOA networks, what does LF, EF, mean
LATE FINISH AND EARLY FINISH
on AOA networks, what does LS, ES mean
LATE START AND EARLY START
How do you calculate the Early finish on a AOA?
Early start + Duration
what is SPI, and what does it mean if it is equal to a number greater than 1 (>1)
schedule performance index, project is ahead of schedule
Define Risk
is an uncertain condition of event that if it occurs has at least an effect on project objective - scope, schedule, cost, quality
Define Free Float
is the amount of time that an activity may be delayed with delaying the early start of the following activities
Float is also called
Slack
Does free float tell you the amount of time an activity may be delayed without delaying completion of a project?
NO, it tells you how much delay while not delaying the start of the following activities
Define Total Float?
the amount of time activity may be delayed without delaying completion of a project
If an acitivity on the critical path is delayed how will that affect the project schedule?
critical path is delayed, the project as a whole will be delayed
What does crashing of an activity on a project mean?
Crashing is used to reduce the duration of the activity by allocating more resources for this activity
What is a “neat line”
A line that defines the limits of excavation, the contractors are not paid beyond this line.
What is SPI and what does it mean when it is greater than 1
Schedule Performance Index - *****
when SPI is greater than 1 the project is AHEAD of schedule
how do you solve for the breakeven time period for an investment
payback/ breakeven = (cost of investment)
T/F Averaging stationing method is la method used for calculating earth work quantities?
FALSE
Name three methods for calculating earth work quanities
End Area Method, Coordinate methods, Borrow Grid Methods
Name three things to consider when building a new storm drain line and a detention basin
- The cut and fill necessary for the basin
2.The existing underground utilities - Storm water pollution prevention plan
per OSHA - the fall anchorage must be able to support how much weight per person?
5,000 lbf
per osha - what is the maximum distance between the net and the bridge that a fall can be arrested by the net?
30’
