Quiz #2 Construction Technology 1

Question 1. What factors determine the type of foundation to use? (25 Points)

Answers: Soil competency and bearing capacity, construction schedule, cost, groundwater conditions (water table), frost line, impact on adjacent buildings, site load requirements, seismic activity, and climate conditions.

Question 2. Label the missing elements from the foundation drainage detail below. (25 Points)

Answer: From left to right: Waterproofing membrane, drainage mat/filter cloth cover, waterproofing membrane/polyethylene, concrete footing.

Question 3. Sketch an example of a platform framing wall section. (25 Points)

Answer: (Drawing) Platform framing: Each floor is built independently, with walls sitting on top of floor joists.

Question 4. When designing the floor framing system for a residential building, which is spanning 16 feet:

4a. How do you determine the approximate size and spacing of floor joists? (12.5 Points)

Answer: Determine joist size and spacing using span tables, considering load requirements (live & dead loads), wood species/grade, typical spacing (16” O.C.), and deflection limits to prevent sagging.

4b. What adjustments are needed for heavier loads?(12.5 Points)

Answer: For heavier loads, increase joist depth, reduce spacing, use stronger wood/materials, or add beams/steel reinforcement.