Buildings Exam Questions with 100

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CSLB Class B General Contractors License Building’s Exam Questions with 100% Correct Answers 1.What fastener spacing is required for the corners of oriented strand board (OSB)?A)6 on edge or 8 on center B)6 on edge 12 on center C)8 on edge 12 on center D)8 on edge 16 on center Answer B) 6 on edge 12 on center 2.Can linoleum be repaired or patched?A)Never B)Yes, with a pattern match C)Yes, just cut small patch to fit D)No, because it's not repairable Answer B) Yes, with a pattern match 3.What is the best tool used to cut a 2 foot diameter hole in plywood? 1 / 4

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A)Jigsaw B)Keyhole saw C)Mason saw D)Hacksaw Answer A) 4.Who may work with asbestos?A)Contractor carrying asbestos certification B)General contractor C)General Engineer D)Subcontractor Answer A) Contractor carrying asbestos certification 5.What tile is better with sanded grout?A)4"x4" with a joint size between 3/32" and 1/16" B)4"x4" with a joint size between 1/16" and 5/8" C)6"x6" with a joint size between 1/16" and 1/8" D)6"x6" with a joint size between 1/8" and 1/4" Answer D) 6"x6" with a joint size between 1/8" and 1/4" The size of the tile is not as important as the joint size. Sanded grouts are typically used for grout joints that are wider than 1/8". 2 / 4

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6.If you have concrete subfloor, how would you install hardwood on top?A)Nail it but only if there is a vapor barrier under the slab B)Nail it but only if the hardwood is heavy enough to avoid warping C)Nail it along with a water-based membrane D)Glue down Answer D) Glue down Hardwood should never be nailed directly to concrete. Standard strip hardwood is installed by blind nailing to wood subfloors or sleepers that are set over mastic. If using sleepers don't forget to place a polyethylene sheet over the sleeper planks. If installing tongue-and- groove hardwood planks over concrete, you may use mastic (paste-like adhesive). This is known as the glue down method.

7.When connecting a rafter with collar ties, what nails are used?Answer 10d 8.What is the maximum height of an accessible sink in a commercial build- ing?Answer 34" According to the California Building Code, lavatories and sinks shall be 3 / 4

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installed with the front of the higher of the rim or counter surface 34 inches (864 mm) maximum above the finished floor. In residential dwellings unit kitchens, sinks that are adjustable to variable heights, 29 inches (737 mm) minimum and 36 inches (914 mm) maximum, shall be permitted where rough-in plumbing permits connections of supply and drain pipes for sinks mounted at the height of 29 inches (737 mm).

9.Of the following, the best tool for door jamb installations is A)T-square B)Eight-foot level C)Six-foot level D)Plumb Answer C) Six-foot level 10.Who gives permission to install a septic system?Answer City 11.How much spacing is required for anchor bolts from the edge of a stem wall?Answer 1 3/4" 12.When flooring (wood, laminate, etc.) is delivered to the job, how does the contractor proceed?

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