nascla accredited exam 2023 2024 actual exam 250 q
nascla accredited exam 2023
nascla accredited exam 2023 2024
nascla accredited exam 2023 2024 actual
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NASCLA ACCREDITED
NASCLA ACCREDITED
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NASCLA ACCREDITED EXAM 2023 -2024 ACTUAL EXAM 250 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) | AGRADE Where should quantities of flammable liquid in excess of 25 gallons be stored in that is acceptable or approved? - ANSWER - Acce ptable wooden storage and Approved metal storage cabinets. Cabinets shall be labeled in conspicuous lettering "Flammable -Keep Away from Open Flames" LP-Gas storage outside of buildings for containers waiting use shall be located from the nearest building or group of buildings in accordance to? - ANSWER - 1. 500 lbs or less - 0ft 2. ***501 to 6,000 lbs - 10ft 3. 6,001 to 10,000 lbs - 20ft 4. Over 10,000 lbs - 25ft Clearance and mounting of temporary heating devices are? - ANSWER - 1. Room heater, circulating type - 12" sides, 12" rear, 18" chimney connector 2. ***Room heater, radiant type - 36" sides, 36" rear, 18" chimney connector How far shall heaters used in the vicinity of the combustible tarpaulins, canvas, or similar coverings be located from the coverings? - ANSWER - 10 feet from coverings Material stored inside buildings under construction shall not be placed with what distances? - ANSWER - 6 feet of any hoistway or inside floor openings, ***not within 10 feet of exterior wall which does not extend above the top of the material stored Bagged materials shall be stacked by stepping back the layers and cross -
keying the bags at least by how many bags high? - ANSWER - 10 bags high Brick stacks shall not be more than? - ANSWER - 7 feet in height When a loose brick stack reaches a height of 4 feet, it shall be tapered back by how many inches? - ANSWER - 2 inches in every foot of height above the 4 -foot lev el When masonry blocks are stacked higher than 6 feet, the stack shall be tapered back how far? - ANSWER - Back one -half block per Tier above the 6 -foot level Used lumber shall have what withdrawn before stacking? - ANSWER - Nails How shall lumber be stac ked? - ANSWER - On level and solid supported sills, and stable and self supporting Lumber piles shall not Exceed? - ANSWER - 20 feet in height provided that lumber to be handled manually shall not be stacked more than 16 feet high Wire rope shall not be us ed if? - ANSWER - In any length of eight diameters, the total number of visible broken wires exceeds 10 percent of the total number of wires, or if rope shows other signs of excessive wear, corrosion, or defect Waste materials - when materials are dropped more than 20 feet to any point lying outside the exterior walls of the building what is needed? - ANSWER - An enclosed chute of wood, or equivalent material, shall be used. Enclosed chute is a slide, closed in on all sides, through which material is moved f rom a high place to a lower one All other hand -held powered tools such as circular saws, chain saws, and percussion tools without positive accessory holding means, shall be equipped with what? - ANSWER - A constant pressure switch that will shut off the power when the pressure is released Compressed air shall not be used for cleaning purposes except when? - ANSWER - Where reduced to less than 30 p.s.i and then only with effective chip guarding and personal protective equipment which meets the requirements. The 30 psi requirement does not a pply for concrete form, mill scale and similar cleaning purposes Who shall be allowed to operated a powder -actuated tool? - ANSWER - Only employees who have been trained in the operation of the particular tool in used All employees using abrasive wheels s hall be protected by? - ANSWER - Eye protection equipment Guarding, all portable, power -driven circular saws shall be equipped with what? - ANSWER - Guards above and below the base plate or shoe. The upper guard shall cover the saw to the depth of the teeth , except for the minimum arc required to permit the base to be tilted for bevel cuts. The lower guard shall cover the saw to the depth of the teeth, except for the minimum arc required to allow proper retraction and contract with the work. When the tool is withdrawn from the work, the lower guard shall automatically and instantly return to the covering position. Valve protection caps shall not be used for lifting cylinders from one vertical position to another. - ANSWER - Bars shall not be used under valves or valve protection caps to pry cylinders loose when frozen. Warm, not boiling, water shall be used to thaw cylinder loose How should compressed air be secured? - ANSWER - In an upright position at all times except, if necessary, for short periods of time while cylinders are actually being hoisted or carried What distance shall Oxygen cylinders in storage be separated from fuel -
gas cylinders or combustible materials (especially oil or grease)? -
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