Carpentry & Masonry Trade Knowledge — Practice
Carpentry: roofs: practice questions
Our Carpentry & Masonry bank has 10 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1 · Carpentry
What do collar ties or rafter ties do?
- Resist rafters spreading apart and pushing the walls outward
- Hold up the ceiling insulation
- Support the gutters
- Hold up the ceiling drywall and the insulation laid above it
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A. Resist rafters spreading apart and pushing the walls outward — Rafter ties are placed in the lower third of the attic.
Question 2 · Carpentry
Why is a small gap left between roof or wall sheathing panels?
- To let air into the attic
- To allow for expansion as the panels absorb moisture
- It is not necessary
- To let air move from the soffits into the attic between the panels
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B. To allow for expansion as the panels absorb moisture — Manufacturers recommend about 1/8 inch.
Question 3 · Carpentry
What are hurricane ties used for?
- Anchoring the foundation
- Leveling floor joists
- Connecting rafters or trusses to walls to resist uplift
- Joining two top plates together where they meet at a corner
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C. Connecting rafters or trusses to walls to resist uplift — Metal connectors per the code or design.