Revision Quiz Click your mouse, read the question, click again to reveal the answer M. S. Martin October 2007

What are the two common spacing's for Bearers & Joists? 450mm & 600mm centres If a timber bearer has an excessive bow in it, how can this be corrected? You can cripple the bearer by putting a cut into the top of the timber, applying pressure downward and then fixing the joint to hold in place (this must be done centrally over the top of a pier) How should timber joists be fixed to the bearers below? They should be fixed with double skew nails. Name three types of piers that can be used in residential construction. Brick, Timber stumps, pre-cast concrete, steel What does DPC stand for and what is it’s purpose? Damp Proof Course and it is used to prevent rising damp in brick walls below ground level. What should be placed directly under an ant cap on a brick pier? DPC

Starting From the top left corner, in a clockwise direction, name the components indicated with arrows, click to reveal answer Bearers Double Floor Joists Single Floor Joists Concrete Slab Brick Isolated Piers Concrete Slab Planter Box 110 Dwarf Wall Concrete Slab