Explain what a ridge board is.
What will be an ideal response?
A ridge board is generally a 2-by lumber member at which the rafters from the opposite side of the ridge connect. It is a nonstructural member whose primary function is to align the rafter ends in a straight line.
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What type of auxiliary device promotes separation of liquids from gases?
A. Demister B. Jet pump eductor C. Centrifuge D. Hydrocyclones
Cross-graining makes a plywood panel
A) stronger in the direction of face veneer grains. B) less likely to split than solid sawn lumber. C) dimensionally more stable. D) all of the above. E) A and C only.
Passage of the Federal Meat Inspection Act was inspired by the publication of
A. Theodore Dreiser's The Titan. B. Jack London's The Call of the Wild. C. Henry Demarest Lloyd's Wealth Against Commonwealth. D. Jacob Riis's How the Other Half Lives. E. Upton Sinclair's The Jungle.
Poor lighting, excessive noise, and inadequate guards for moving parts are examples of _____.