Free API API-936 Exam Dumps Questions & Answers

Ceramic fiber batten strips shall be:

• A.anchored with staples.
• B.the same grade as hot face material.
• C.a maximum length 3 ft (0.9 m).
• D.anchored with Lock Studs.

What temperature is required to form a permanent bond in phosphate-bonded plastic refractory?

• A.500°F to 700°F (260°C and 370°C)
• B.300°F to 500°F (150°C and 260°C)
• C.100°F to 300°F (38°C and 150°C)
• D.50°F to 100°F (10°C and 38°C)

For as-installed testing in casting applications, what is the minimum number of cast samples required by each mixing crew per material per shift?

• A.Two
• B.Four
• C.Three
• D.One

Throughout a period of at least 24 hours, test specimens for air-setting, phosphate-bonded castable refractories are:

• A.heat cured, uncovered.
• B.heat cured, covered.
• C.air cured, covered.
• D.air cured, uncovered.

Cold wall refractory lined components shall be dried out by heating from:

• A.the outside the steel shell.
• B.the hot face only.
• C.inside an oven.
• D.the cold face only.