API Refractory Personnel - API-936 FREE EXAM DUMPS QUESTIONS & ANSWERS

A. 30°. B. 15°. C. 60°. D. 45°.

A. band saw B. diamond saw C. portable rescue saw D. trowel

A. Make no special preparations B. Have the castable dry mix heated to >50°F (10°C) C. Be ready to stop pouring if the temperature drops below 35°F (2°C) D. Keep the install material and shell >50°F (10°C)

A. Apply a manufacturer approved membrane-type curing compound before the surface is dry to the touch B. The membrane curing compound shall burn off at a temperature not less than 500°F (260°C) C. No part of the lining shall be allowed to air dry more than 3 hours before application of a curing compound D. After remaining in place for 24 hours, forms shall be removed and a curing compound applied within 1 hour of form removal

A. because removal back panels make the reclaiming of anchors easier. B. because a mechanical inspection by hammer test is required. C. to facilitate the determination of the green-to-fired weight of the castable required for compliance. D. to allow inspection for voids and lamination in the castable.

A. 12 hours. B. 18 hours. C. 24 hours. D. 8 hours.

A. CCS test values must average within ±10% of the manufacturer's mean value. B. The lowest result must exceed 90% of ASTM C401 average for gunned materials. C. CCS must be no less than 80% of the manufacturer's advertised maximum. D. All individual values must exceed 75% of the manufacturer's minimum published CCS.

A. calcined frits. B. granular grog. C. friable materials. D. mineral additives.

A. Abrasion resistance is determined using two 4-1/2 in. (114 mm) × 4-1/2 in. (144 mm) × 1 in. (25 mm) specimens. B. Cold crush strength is determined using two 4-1/2 in. (144 mm) × 4-1/2 in. (114 mm) × 4-1/2 in. (114 mm) cubes. C. Density shall be determined using cubes or erosion plates and linear change bars. D. Permanent linear change is determined with one 2 in. (50 mm) × 2 in. (50 mm) × 9 in. (230 mm) specimen.