Free Refractory Personnel Exam API-936 Exam Practice Test

[Terms, Definitions, and Abbreviations]Materials that are easily reduced to a granular or powdery condition after placement are known as:

• friable materials.
• calcined frits.
• mineral additives.
• granular grog.

[Installation Procedures]The maximum angle permitted for gunning below the horizontal is:

• 15°.
• 30°.
• 45°.
• 60°.

[Installation Procedures]All newly installed air-setting, hydraulic, and chemically bonded linings should be allowed to cure atthe proper temperature before initial heating for a minimum of:

• 12 hours
• 18 hours
• 24 hours
• 48 hours

[Installation Procedures]Selection, installation, inspection, and testing of anchors shall be in accordance with:

• contractor's QA/QC department
• API RP 577
• welding code
• drawing and specifications

[Installation Procedures]For qualification testing, test panels for pneumatic gunning are inclined at a:

• 30° angle above the horizontal.
• 45° angle above the horizontal.
• 60° angle above the horizontal.
• 90° angle above the horizontal.

[Inspection and Testing Requirements]How many specimens per sample are required for testing by ASTM C-704?

• One
• Two
• Three
• Four

[Material Requirements]Which of the following does not apply to cold crushing strength (CCS)?

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

[Installation Procedures]Which of the following statements regarding curing of hydraulic bonded castables is true?

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

[Inspection and Testing Requirements]Which of the following is the appropriate term for testing refractory that was sampled during project site installation in order to confirm that it meets specified physical property standards?

• Hammer testing
• Pre-qualification testing
• As-installed testing
• Visual testing

[Inspection and Testing Requirements]What is the ASTM test designation for cold crush strength?

• C-417
• C-704
• C-113
• C-133