CM 329 Midterm

To do a thorough review and prepare a bid analysis of Door, Frame & Hardware Subcontractors' proposals, you only need to make sure that they have priced the latest set of drawings and specifications, that they acknowledged all Addendums ,and that they have all spec' sections included (i.e.: doors, frames, hardware, etc.).

False, quantities also

What is the level of accuracy of a detailed estimate?

2-4%

The cost of labor to install a roofing system depends on the type of roof selected (shingles, built-up, single-ply, metal, etc...) and also on: All these answers are correct Slope of the roof Elevation of the roof above the ground (hoisting cost) Number of openings in the roof

All these answers are correct

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

Bank

The Soil Tables and formulas contain the abbreviation BCY. What does BCY mean?

Bank Cubic yards

Other than the concrete strength expressed in PSI (i.e. 3,000 psi), which concrete specifications could add cost to the price of concrete (typically expressed in $/CY)?Multiple answers are possible.

Curing Cement type Concrete color additives Aggregate type Fiber Add mixture composition (air entrainment, accelerator, fly ash, etc...) Quantity needed (small bath versus large batch) Concrete finish (stamped, trowel, broom, etc...) Delivery mileage (distance from plant to jobsite) Designed placement

Which estimate will give you the most level of details and be the most accurate? Rough Order of Magnitude (ROM) "Wag" or "Swag" Estimates Semi-Detailed Estimate Detailed Estimate

Detailed Estimate

What subcontractor(s)' scope(s) would need to be coordinated closely in order to provide fully operating access control devices on a door?

Door, Frame & Hardware Subcontractor + Electrical Subcontractor + Building Controls Subcontractor + Fire Alarm Subcontractor

Which of the following would not be included in a division 6 scope of work? Wood Wainscoting Wood Framing Wood Doors Wood Siding

Doors

It is not important to verify that the General Project Description provided in a Geotechnical Report is accurate. The design recommendation for the foundation system will be the same, regardless of the type of buildings constructed on the site.

F

The swell/shrink (expansion) factor of a soil indicated in a soil geotechnical investigation report (as a result of a Laboratory Swell test) is the same thing as the swell factor used by earthwork contractors to estimate LCY of soils to be exported.

F

Waterproofing and dampproofing are the same thing. They are both designed to resist the passage of water and to resist the hydrostatic pressures to which a wall or floor might be subjected.

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.

False

When excavating for utility trenches, it is important to note the soil characteristics/classification to: Know if we will need to dig through hard rock that will require special equipment Know how deep we will need to dig Know if we need to use shoring and how deep we will need to dig Know if we will need to dig through hard rock that will require special equipment, and if we will need to use shoring

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

The 4 steps to an estimate are (fill-in the blank): Step 1: Break the project into manageable components Step 2: Assign a cost to each component, including: [a] + [b] + [c] Step 3: Summarize the component = DCC = Direct Construction Costs Step 4: Add all "[d] Construction Costs"

Labor, Material, Estimate, Indirect

Which of the following items would not be included in a division 7 scope of work? Architectural louvers/ screens Sheet metal flashing / coping systems Single ply roofing systems Liquid applied membrane

Louvers

What type of information should you first take into consideration and note in your estimate when taking off batt insulation? Note the thickness and type of insulation Note the number of rolls required Note the number of square feet required Note the thickness, type of insulation, and facing required

Note the thickness, type of insulation, and facing required

Which type of bond (masonry installation) is the least expensive?

Running

What is the unit to be used when doing masonry takeoff?

SF

Concrete formwork quantities are estimated in:

SFCA

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

Semi-Detailed estimate

The amount of time required for a mason to lay a masonry unit varies with the [a], [b], and [c] of the unit.Therefore, it is important to separate each type of masonry when doing takeoff.

Size, weight, shape

What is the earth material drawn from an excavation called?

Spoil

Roofing is typically taken off by which unit of measure?

Square

What unit would you typically use to do the takeoff of a roofing system such as asphalt shingles or single-ply roofing?

Square

What unit would you use to do the takeoff of a waterproofing membrane?

Square

Unit to take off glass and glazing

Square feet

The Direct Construction Cost includes all Materials, Labor and Equipment costs associated with the project plus: All Subcontractors Costs Allowances + Contingencies + General Conditions Subcontractors Costs + Allowances + Contingencies + General Conditions Subcontractors Costs + General Conditions

Subcontractors Costs + Allowances + Contingencies + General Conditions

Which document describes quality of work and the quality of the materials and the construction execution procedures? Agreement General Requirements Technical Specifications Supplementary Conditions

Technical Specifications

The Unit of Time used to estimate labor is

The Work Hour as the amount of work one person can do in one hour

What does the reference to Level 4 or Level 5 mean related to gypsum board?

The amount of "mud" to apply over the taped joints, and the amount of sanding to do to obtain a smooth wall finish

A Work Breakdown Structure (WBS) typically includes which of the following for each work package? The actual labor cost of the work The actual cost of the work performed The budgeted cost of the work scheduled The budgeted cost of the work performed

The budgeted cost of the work scheduled

What does the "mils" unit refer to for a metal stud?

The minimum base metal thickness in one thousandth (0.001) of an inch

The term masonry encompasses all the materials used by masons in a project, such as block, brick, clay, tile, or stone. The tremendous amount of varied material available requires that estimators be certain they are bidding exactly what is required.

True

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

Typically organized following the CSI MasterFormat divisions, with some adaptations by companies. Typically organized by alphabetical order of the item descriptions.

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

Unemployment

Rebars quantities are estimated in:

Weight (100-pounds or ton) or Length (feet or 100-feet)

List 3 main factors that could affect the productivity rate of a crew on a jobsite.

Worker availability, Expertise, weather conditions

Grout per 8x8x16 block?

You need 0.56 CF of grout per block

To account for rebar splicing and overlap, you should add ____ % more weight than your calculated rebar weight.

10

SF to blocks (8x8x16)

100 SF/113 Blocks

A building pad excavation is calculated as needing to fill in 45,000 CCY of engineered type soil. The shrinkage factor for that soil is estimated by the Geotechnical Engineer at 25%. How many Cubic Yard of soil will need to be imported by the Earthwork contractor?

45,000 CY divided by 0.75 (1 - 0.25) = 60,000 CY

How many different CSI MasterFormat divisions exit?

50

Sheathing division

6

Under which division in the CSI MasterFormat can you find the Wood fascia and trim specifications?

6

Insulation division?

7

Roofing division?

7

Under which division in the CSI MasterFormat can you find the Cementitious Siding specifications?

7

How many days would it take to install 25,000 SF of slab-on-grade concrete if a C14F crew (9 workers) can do 3,350 SF a day?

7.5

Exterior door division

8

Glass and Glazing division?

8

What is a Work Breakdown Structure (WBS)? A sequence of tasks organized in chronological order as they occur on a jobsite A list of tasks related to the Structure of the building A list of tasks braking down the project into manageable work packages An alphabetized list of general tasks required for the project

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

In terms of cost estimating, why is the height of the walls important to take into consideration? To be able to estimate the cost of the scaffolding To know how far up the masonry block needs to be carried before being installed in place Because of safety concerns All these answers are correct

All

Trying to save cost on the geotechnical investigation scope by not doing as many soil borings as needed may result in: Not having enough data to design the foundation system All of the proposed answers and potential litigations on the project Increase in construction costs Increase in schedule duration

All

What contribute to the cost of CSI MasterFormat Section 09 30 00 Tiling? All of these answers are correct Dimensions of the tile (face size and thickness) Manufacturing and supplier locations Mortar type and Grout type

All

What specifications related to doors, frames & hardware would have a cost impact on the overall cost of a door opening assembly? All of these answers are correct Fire rating of the opening (20 min. / 40 min. / 1 hr. / etc.) ADA requirements Life safety components (panic bar, door handing type, etc.)

All

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

Compacted

In addition to the door itself, there are six basic components of a door opening.Can you list them all, in the order they are typically installed at the jobsite? The first one needs to be installed first. It is a [a]The second one is used to attach the door to the first one. It is a [b] device (starts with a "h")The third one allows the door to open and close. It is a [c] device (starts with a "s")The fourth one allows the door to lock/unlock. It is a [d] device (starts with a "c")The fifth one is installed to seal the door. It is a [e]The sixth one is installed to make the door last longer. it is the [f]

Frame, Hanging device, securing device, controlling device, trim, protection

The soil conditions indicated in a Geotechnical Report will help us price the following potential added cost to earthwork scope: Hard-rock digging, de-watering and over-excavation De-watering and over-eacavation Hard rock digging Over-excavation and Hard-rock digging

Hard-rock digging, de-watering and over-excavation

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

Plans

Under which conditions would you want to use epoxy coated rebar and welded wire fabric? To increase the strength of the concrete To prevent corrosion of the rebar/WWF To prevent cracking in the concrete To increase contact bonding between the rebar and the concrete

Prevent corrosion of rebar WWF

During the design process, in which order are the different drawing sets completed? Construction Drawings (CD) - Design Development (DD) - Schematic Design (SD) - Programming/Concept

Programming/Conceptual - Schematic Design (SD) - Design Development (DD) - Construction Drawings (CD)

A Welded Wire Fabric (WWF) is called for on the drawings as WWF 8 x 8 - W6xW6What does that mean? The wire mesh is made of longitudinal and transverse wires that are 8" o.c. (on center) and the wires have a cut section area that is 0.06 square inch The wire mesh is made of longitudinal and transverse wires that are 8" o.c. (on center) and the wires are # 6 rebars The wire mesh is made of longitudinal and transverse wires that are 8" o.c. (on center) and the wires have a cut section area that is 0.6 square inch It comes in sheets that are 8'-0" x 8'-0" and weights 600 pounds

The wire mesh is made of longitudinal and transverse wires that are 8" o.c. (on center) and the wires have a cut section area that is 0.06 square inch

Which statement below regarding Work Packages is incorrect? There is no definitive schedule associated with the work packages. There should be no overlap of cost between work packages. The final breakdown of a work package should be at a level where progress can be measured precisely There should be no overlap of scope between work packages.

There is no definitive schedule associated with the work packages.

Structural Steel is typically taken off by which unit of measure?

Ton

Contingency is typically used to cover the risks that occur during a CM at risk project.

True

If a Geotechnical Report indicates a Swell % over 1.5% at a boring location, you need to think that you may be dealing with expandable clay type soil and that over-excavation of the site will most likely be required in order to have a suitable building pad for footings and slab-on-grad.

True

One of the typical scope gaps left out by subcontractors is the power supply/transformer that will energize the door's electrified hardware.

True

The "Art" of estimating is being able to account for the unknown, the unseen, and the unexpected.

True