PDD ARE 5.0 Flashcards
What is the function of vertical stiffeners on a steel beam?
To prevent web buckling.
Where appearance is a concern, what is the advantage of knee bracing over other types of bracing?
The struts are typically short enough to be more easily hidden by a suspended ceiling.
What are metal anchor studs, or shear studs?
Connectors welded to a beam and encased in concrete.
What type of retaining wall includes a key, and what is the key’s purpose?
A cantilever retaining wall includes this to help prevent slipping.
What are two important issues to consider when designing long span structural members that are to be shipped to a site by truck?
i. That the components must each fit on a truck
ii. Be as large as possible to minimize the number of field connections
On what two drawings would you expect to find information about both ceiling grids and lighting fixtures?
i. RCP
ii. Electrical Lighting Plan
What is an economizer cycle?
a. The introduction of fresh air into the indoor air.
i. Reduces energy costs
ii. Improves air quality
What are some advantages of using a runaround coil in an air handling system?
i. Incoming and exhaust airstreams need not be adjacent.
ii. High efficiency and energy savings
iii. Effectiveness in high volume applications
Name three water quality problems that can be corrected with filtration.
i. Color
ii. Turbidity
iii. Odor
Name four common components that would be included in construction specifications under Section 07 72 00: Roof Accessories.
i. Coping
ii. Vents
iii. Expansion Joints
iv. Hatches
Four properties of copper pipe that make it well suited for use in water supply systems
i. Corrosion Resistance
ii. Low Friction Loss
iii. Strength
iv. Availability in Small Outside Diameters
What type of coating can be applied to make a wall or other surface fire resistant?
Intumescent Paint
What is the relationship between “resistance through a material”R and “thermal conductivity”C?
R= 1/C
What type of specification include the name of a specific manufacturers product?
Proprietary Specification
When using the CSI Masterformat, what three parts make up the section of the specifications?
Part 1: General
Part 2: Products
Part 3: Execution
Which contract document describes the quality and type of materials to be used?
The specification
What are three examples of live loads in a building?
i. Furniture
ii. Mobile Equipment
iii. People
Name 3 procedures permitted by the IBC for calculating design seismic forces
i. Simplified Analysis
ii. Equivalent Lateral Force
iii. Dynamic Analysis
What kinds of loads can membrane structures resist?
Tension
Two tests commonly used on concrete
Slump Test
Kelly Ball Test
Cylinder Test
Buildings over 30 stories with a rigid structural system cannot easily be constructed from concrete. Why not?
The moment resisting connections between beams and columns are difficult to construct.
In the IBC, in which construction type is combustible wood both permitted and allowed to be left unprotected?
i. Type IV
ii. Heavy Timber
What are the three basic categories of exposure used in determining wind loading in building design?
i. Urban and suburban areas
ii. Open terrain with scattered obstructions
iii. Flat, unobstructed areas
What is the formula for the “moment of inertia I” for a beam with a rectangular cross section?
I=bd^3 b=width of cross section d=height of cross section