API-936 試験問題を無料オンラインアクセス

All newly installed air-setting, hydraulic, and chemically bonded linings should be allowed to cure at the proper temperature before initial heating for a minimum of:

• A.24 hours
• B.12 hours
• C.48 hours
• D.18 hours

Size distribution of aggregate particles is determined by:

• A.porosity.
• B.screen analysis.
• C.rebound.
• D.expansion allowance.

Which of the following does not apply to cold crushing strength (CCS)?

• A.The loading head of the testing machine shall have a spherical bearing block
• B.CCS shall be determined on samples that have been fired to 1500°F (815°C)
• C.Density of sample affects testing loading rate
• D.Testing shall be in accordance with ASTM C1113

Which of the following steps are required to apply to thin-layer erosion-resistant linings?
(This may have more than one correct answer; please select all answers that apply.)

• A.Overfill will be removed until flush with the tops of the hexmetal
• B.Water slicking of the lining surface is permitted
• C.Mix times will be determined during the material qualification testing
• D.The refractory will be fully compacted in and around the anchor supports

The maximum angle permitted for gunning below the horizontal is:

• A.45°.
• B.30°.
• C.60°.
• D.15°.