Owner Builder exam questions with 100% correct answers.

At what depth of trench is shoring require / At what depth of an excavation is shoring required? - 1.2M (4 Feet) Which of the following is not an acceptable method for determining the correct grading for a trench? - An experienced excavator says it's ok Which best describes the design principle of rain water deflection? - Design and construction that prevents water from ever entering What lighting certifications are required in Canada? - CSA safety certification What grit of sandpaper would get smoothest result? (150 / 180/etc.) - The higher the grit, the finer/smoother the finish. When finishing a surface, you typically start with a low grit and work up to a high grit What is the maximum rise in a flight of stairs? - The vertical height any flight stairs shall not exceed 3.7 m (from the BCBC) What is the minimum distance that a ladder must extend above a parapet wall or landing? - 3 ft. What heights are end dams to be on window and door flashings? - 25 mm / 1 inch (from BCBC) When is an HRV required? - Almost always: "Effective December 19, 2014 residential dwelling units, such as houses, apartments and secondary suites will be required to have a principal ventilation system that exhausts air from bathrooms and kitchens and supplies fresh air to bedrooms and living areas [9.32.3.3.]" "Some small dwelling units in mild climates are permitted to supply fresh air through passive vents [9.32.3.4.(6)], but for most dwelling units exhaust and supply will require a mechanical fan"What can you build under the owner-builder HPO process? Which of the following is not allowed under the HPO owner-builder program? - New dwelling unit attached to building *newer* than 10 years old Who issues permits for a gas fireplace? - Safety Authority → now call Technical Safety BC Can an owner builder take out his or her own electrical permit? - Yes -work up to 200A is allowed What is the best practice to apply asphalt waterproofing on a foundation? - 2inch (max) below grade