API-936 試験問題を無料オンラインアクセス

Which of the following is a longitudinally hinged anchoring system for curved applications?

• A.Hexalt anchor
• B.Curl
• C.Flexmesh
• D.Hexmesh

When drying out a unit or vessel that has multiple refractories, schedules should be based on:

• A.the refractory with the highest density in the dryout.
• B.the refractory or lining system that has the longest duration requirement.
• C.extending the hold times by one hour per additional refractory layer.
• D.an average of heating rates and holding times for the refractories and thicknesses being dried out.

Hydration is the process that causes refractory concrete to:

• A.develop green strength.
• B.dry out.
• C.become formable.
• D.resist heat.

In the absence of owner specification, which party or individual sets the temperature limits for refractory and mix water?

• A.Manufacturer
• B.Independent refractory laboratory
• C.Inspector
• D.Contractor

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

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