Carpentry Section 1-9 Module 7 Reviews
Questions and Answers | Latest Version
| 2024/2025 | Correct & Verified
What is the role of a king rafter in roof framing?
✔✔ To support the ridge board and form the main sloping section of the roof.
What is the typical size of a ceiling joist in residential construction?
✔✔ 2x6, 2x8, or 2x10, depending on the span and load requirements.
How do you ensure proper alignment of ceiling joists during installation?
✔✔ Use a string line or laser level to ensure the joists are straight and level.
What is the function of a collar tie in a pitched roof structure?
✔✔ To prevent the roof from spreading and maintain structural stability.
What is a common material used for roof sheathing?
✔✔ Plywood or oriented strand board (OSB).
1
, How does a gambrel roof differ from a traditional gable roof?
✔✔ A gambrel roof has two slopes on each side, with a steeper lower slope and a shallower
upper slope.
What is the primary benefit of using a flat roof in commercial buildings?
✔✔ It allows for easy installation of HVAC units, skylights, and other rooftop equipment.
What is the role of a valley rafter in roof framing?
✔✔ To support the intersection where two sloped roof sections meet at a valley.
What is the purpose of using a ridge beam in roof framing?
✔✔ To carry the weight of the roof structure at the peak and prevent sagging.
How is a roof pitch typically measured?
✔✔ By the number of inches the roof rises vertically for every 12 inches it extends horizontally.
What is the purpose of using purlins in a roof framing system?
✔✔ To provide additional support to the rafters and distribute the load more evenly.
2
Questions and Answers | Latest Version
| 2024/2025 | Correct & Verified
What is the role of a king rafter in roof framing?
✔✔ To support the ridge board and form the main sloping section of the roof.
What is the typical size of a ceiling joist in residential construction?
✔✔ 2x6, 2x8, or 2x10, depending on the span and load requirements.
How do you ensure proper alignment of ceiling joists during installation?
✔✔ Use a string line or laser level to ensure the joists are straight and level.
What is the function of a collar tie in a pitched roof structure?
✔✔ To prevent the roof from spreading and maintain structural stability.
What is a common material used for roof sheathing?
✔✔ Plywood or oriented strand board (OSB).
1
, How does a gambrel roof differ from a traditional gable roof?
✔✔ A gambrel roof has two slopes on each side, with a steeper lower slope and a shallower
upper slope.
What is the primary benefit of using a flat roof in commercial buildings?
✔✔ It allows for easy installation of HVAC units, skylights, and other rooftop equipment.
What is the role of a valley rafter in roof framing?
✔✔ To support the intersection where two sloped roof sections meet at a valley.
What is the purpose of using a ridge beam in roof framing?
✔✔ To carry the weight of the roof structure at the peak and prevent sagging.
How is a roof pitch typically measured?
✔✔ By the number of inches the roof rises vertically for every 12 inches it extends horizontally.
What is the purpose of using purlins in a roof framing system?
✔✔ To provide additional support to the rafters and distribute the load more evenly.
2
