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Estimating > Midterm > Flashcards

Midterm Flashcards

1
Q

Types of Estimates

A

Conceptual, Schematic, Design Development, GMP or Construction Documents (CD)

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2
Q

Four steps to an estimate

A
  1. Break the project into WBS tasks
  2. Assign a cost to each WBS task
  3. Summarize the “Direct Construction Costs”
  4. Add all “Indirect Construction Costs”
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3
Q

Four principals to develop the WBS

A
  1. No overlap of scope between work packages
  2. Each work package should have a definitive start and end date
  3. No overlap of cost between work packages
  4. Final breakdown work package should be at level where progress can be measured precisely
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4
Q

CORE Construction Presentation - Living Estimate

L S I G E Q G F

A
  • Listen
  • Study Cost History
  • Investigate
  • Gather Subcontractors Feedback
  • Explore Options
  • Quantity Scope
  • Generate Detailed Estimate
  • Forecast Future Market Conditions
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5
Q

Documents needed to estimate costs

C G D S S S C I I B

A
  • Contract Agreement
  • General Conditions
  • Drawings
  • Specifications
  • Soil Report
  • Schedule
  • Clarifications
  • Inclusions
  • Insurance requirements
  • Bonds requirements
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6
Q

CSI MasterFormat Groups (2)

A
  • Procurement/Contracting Requirements Group

- Specifications Group

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7
Q

Divison 01

A

General Requirements

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8
Q

Division 02-19

A

Facility Construction

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9
Q

Divison 20-29

A

Facility Services

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10
Q

Division 30-39

A

Site and Infrastructure

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11
Q

Division 40-49

A

Process Equipment

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12
Q

3 Parts of SectionFormat

A

General, Products, Execution

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13
Q

Earthwork Units

A

BCY/LCY and CCY and Acres

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14
Q

Concrete Units

A

CY

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15
Q

Concrete Formwork Units

A

SFCA (SF of Contact Area)

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16
Q

Masonry Units

A

SF to #of blocks

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17
Q

Rebar Units

A

lbs. or tons

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18
Q

Roofing Units

A

Square

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19
Q

Carpet

A

Square Yard

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20
Q

Structural Steel

A

tons

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21
Q

Direct Construction Costs =

A

Materials + Labor + Equipment

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22
Q

Indirect Construction Costs=

A

Fees + Insurances + Bonds + Taxes

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23
Q

Sources of Cost Information

A
  • Historical costs database
  • Subcontractor/Vendor Quotations
  • Published Cost Data (RS Means)
  • Experience
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24
Q

Unit Cost Pricing =

A

Material + Labor + Equipment

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25
Q

Labor Hours per Unit=

A

total crew labor hours/daily output

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26
Q

Labor Dollars per Unit=

A

Daily Crew Labor Cost/Daily output

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27
Q

Work hours per unit=

A

crew work hours expended/daily output

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28
Q

units per work hour=

A

daily output/crew work hours expended

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29
Q

total work hours=

A

work hours per unit x planned quantity

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30
Q

total number of crew days=

A

planned quantities/daily output

31
Q

Loose Volume=

A

bank volume x (1 + swell)

32
Q

Bank Volume (imported soil)=

A

compacted volume/shrinkage factor

33
Q

Imported soil (lcy)=

A

Compacted volume/shrinkage factor

34
Q

Which document describes quality of work and the quality of the material and the construction execution procedures?

A

Technical Specifications

35
Q

Which document issued by the architect illustrates what is to be built at the time of bid?

36
Q

Which type of estimate is most appropriate when the contract documents are 30% to 90% complete?

A

Semi-Detailed estimate

37
Q

Which estimate will give you the most level of details and be the most accurate?

A

Detailed estimate

38
Q

During the design process, in which order are the different drawing sets completed?

A

Conceptual - Schematic Design - Design Development - Construction Drawings

39
Q

T or F: In a CM@R delivery method, it is highly recommended to wait until the Design Professional has completed the 100% construction documents to hire the contractor and get pricing from its estimating department. This will prevent any change orders in the future.

40
Q

List at least 3 factors that could affect the productivity rate of a crew on a jobsite

A
  • Number of men in crew
  • Other subs being behind
  • Materials are not coming on time
41
Q

Which type of insurance covers injuries to construction site workers employed at the job site?

A

Workers compensation

42
Q

How does a construction company typically structure its accounting cost codes?

A

Typically organized following the CSI Materformat divisions, with some adaptions by companies

43
Q

Accuracy of a detailed estimate is

44
Q

Accuracy of a conceptual estimate is

45
Q

Accuracy of a semi-detailed estimate is

A

+/- 5% to 10%

46
Q

Division 01

A

General Requirements

47
Q

Division 02

A

Existing Conditions

48
Q

Division 03

49
Q

Division 04

50
Q

Divison 05

51
Q

Division 06

A

Wood, Plastics and Composites

52
Q

Division 07

A

Thermal and Moisture Protection

53
Q

Divison 08

54
Q

Division 09

55
Q

Divison 10

A

Specialties

56
Q

You can find Electrical specifications under which division in the CSI MasterFormat?

A

Division 26

57
Q

Which of the following items would not be included in a division 7 scope of work?

A

Architectural louvers/screens

58
Q

Which type of insurance covers workers being laid off from their job?

A

Unemployment

59
Q

What is a Work Breakdown Structure?

A

A list of tasks braking down the project into manageable work packages

60
Q

T or F: Contingency is typically used to cover the risks that occur during a CM at risk project

61
Q

A WBS typically includes which of the following for each work package?

A

The budgeted cost of the work scheduled

62
Q

T or F: The “art” of estimating is being able to account for the unknown, the unseen and the unexpected

63
Q

T or F: It is not important to verify that the General Project Description provided in a Geotechnical Report is accurate

64
Q

What is the soil state called after the soil is put in place at its final location and final compaction ratio?

65
Q

What is the earth material drawn from an excavation called?

66
Q

When excavating for utility trenches, it is important to note the soil characteristics/classification to:

A

Know if we will need to dig through hard rock that will require special equipment, and if we will need to use shoring

67
Q

Trying to save cost on the geotechnical investigation scope by not doing as many soil borings as needed may result in:

A

All of the proposed answers and potential litigations on the project

68
Q

T or F: The swell/shrink factor of a soil indicated in a soil geotechnical investigation report is the same thing as the swell factor used by earthwork contractors to estimate LCY of soils to be exported

69
Q

The soil conditions indicated in the geotechnical report will help us price the following potential added cost to earthwork scope:

A

Hard rock digging, dewatering and over excavation

70
Q

What is the soil state called if it is in its natural, or in place, or in situ, or undisturbed state?

71
Q

Under which conditions would you want to epoxy coated rebar and welded wire fabric?

A

To prevent corrosion of the rebar/WWF

72
Q

A welded wire fabric is called for on the drawings as WWF 8 x 8 - W6xW6
What does that mean?

A

It comes in sheets that are 8’ x 8’ and weighs 600 pounds

73
Q

Other than the concrete strength expressed in PSI (i.e. 3,000 PSI concrete), list at least 3 concrete specifications that could add cost to the price of concrete CY:

A

Different admixtures that are required in the mix (mix design)
Reinforcement required in the specifications
Formwork required - what kind (earth form, reused, etc.)

74
Q

T or F:Reinforcing bars are listed by the bar number, which corresponds to the bar diameter in 10th of an inches.
For example, a No. 7 bar (also referred to as a # 7) has a 0.7 inch nominal diameter.

Estimating (2 decks)

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