API-936 無料問題集「API Refractory Personnel」

（A）2 in. (50 mm) x 2 in. (50 mm) x 9 in. (230 mm)

（B）2-1/2 in. (64 mm) x 2-1/2 in. (64 mm) x 2 in. (50 mm)

（C）2 in. (50 mm) x 2 in. (50 mm) x 4 in.(100 mm)

（D）2 in. (50 mm) x 2-1/2 in. (64 mm) x 9 in. (230 mm)

（A）cut back within 30 minutes.

（B）immediately cut back to the shell between anchors.

（C）cut back to the shell in a straight line.

（D）cut back within 1 hour.

（A）5%

（B）1%

（C）10%

（D）4%

（A）Resist chemical attack

（B）Self-supporting

（C）Transparent

（D）Resist mechanical loads

（A）Inspector

（B）Owner

（C）Contractor

（D）Manufacturer

（A）provided by the refractory manufacturer.

（B）less than five years old.

（C）ASTM certified for qualification testing.

（D）the same as will be used for the installation.

（A）screen analysis.

（B）expansion allowance.

（C）rebound.

（D）porosity.

（A）ASTM C-113

（B）SSPC-SP 7/NACE 4

（C）SSPC-SP 10

（D）API 510

（A）anchored with Lock Studs.

（B）a maximum length 3 ft (0.9 m).

（C）the same grade as hot face material.

（D）anchored with staples.