NASCLA Commercial Building Exam Questions with 100% Correct Answers

NASCLA Commercial Building Exam Questions with 100% Correct Answers What is the minimum ceiling height for means of Egress? - answerNot less than 7 feet 6 inches Emergency Power must illuminate for how long? - answerNo less than 90 minutes Elevators are required in a building with how many stories? - answerMore than 3 (or at least 4). What is the size of the refuge space for one wheel chair? - answer30 inches by 48 inches Each area of refuge shall be separated from the remainder of the story by what? - answerSmoke Barrier What is the minimum width of a door? - answer32 Inches The minimum clear opening height of doors shall be no less than (at least) - answer80 inches Which direction should a hinge door swing when the building occupies more than 50 people or is classified as Group "H"? - answerIn the direction of egress The force for pushing or pulling open interior swinging egress non fire doors shall not exceed how many pounds? - answerNo more than 5LBS Clear opening below a door should be no more than - answer4 inches Panic hardware is required when - answerThere are more than 50 possible occupants The maximum unlatching force of panic or fire hardware should not exceed how many pounds? - answer15lbs Stairway width for less than 50 people is - answer36 inches Stairway width for more than 50 people - answer44 inches Handrails should extend passed the top riser by - answer12 inches Maximum handrail width is - answer2 inches Where handrails are not continuous between flights, the handrails should extend horizontally how many inches? - answer12 inches Clear space between handrail and wall - answer1 1/2 Required guards shall not have an opening how large? - answer4 inches Corridor width chart can be found in what book? - answer2018 IBC (Thick blue book) page 287 Emergency escape and rescue openings shall have the bottom of the opening not greater than how many inches? - answer44 inches measure from floor Accessible parking Spaces chart can be found where? - answer2018 IBC Page 308 Net Free Ventilating area shall not be less than - answer1/150th of the area of the space ventilated (Page 321 IBC) The spacing of the ties or fastenings for exterior metal veneer shall not exceed how many inches? - answer24 inches Lap siding should have minimum lap of how many inches? - answer1 and 1/4 inches Metal flashing on walls, roof intersections, no less than how thick? - answer0.019 What class assemblies are most effective against severe fire test? - answerClass A Asphalt shingles should only be used on roof slopes - answerOf two units vertical in 12 units horizontal (17%) Valley lining material thickness chart can be found where? - answerIBC 351 Wood Shake and Wood shingle exposure table - answerIBC 352 Minimum Slope of a roof is - answer1/4 : 1 Allowable deflection table can be found - answerIBC 363 A geotechnical investigation must be conducted when: - answerWhen backfilling more than 12inches under a footer The grade away from a building must be - answer5% for at least 10 feet Dampproofing must be applied from where? - answerFooter to above grade Where should a foundation drain be placed? - answerTop of the drain at least 6 inches above the top of the footing, filter fabric over stone Sandy, silty sand, clayey, table - found where? - answer434 IBC Backfill compressive strength has to be what PSI? - answerAt least 2000 PSI Minimum Depth of footings below undisturbed ground surface should be how deep? - answer12 inches Minimum width of footing is - answer12 inches Flange projections shall not exceed what dimension? - answer14 times the minimum thickness of metal and flange width shall not be less than 80% of the depth of the section How thick should a vapor barrier be below a slab? - answer6 mil (0.006) lapped at least 6 inches Chimney termination is at least how far above the highest point of the roof? - answer3 feet What plan is submitted to the engineer? - answerDesign (construction documents) Steel Joist placement plans do not require what - answerSeal and signature of the joist manufacturer Trusses spanning more than how many feet require an engineer? - answer60ft Underlayment should be a minimum of how thick? - answer1/4in thick At what height do you need a permit for a retaining wall? - answer4ft What occupancy classification is a hospital? - answerI-2 Who is authorized to serve a notice of violation or revoke permit? - answerThe Building Official Fire box should be placed how far above finished floor? - answer42-48inches Minimum temperature when applying SFRM is what - answer40 Degrees for 24 hours Parapet shall not be less than how tall above the point where the roof surface and wall intersect? - answer30 inches Smoke barriers most be how thick? - answer2.5mm (.10in) Shaft enclosures shall have a fire resistance rating of not less than how long? - answer2 hours where connecting 4 stories or more A manual actuation device shall be located at or near egress how far from cooking area? - answer10-20ft