Pass the API ICP Programs API-936 Questions and answers with ValidTests

According to API 936, theinstallation contractor must secure prior written approval or agreement from the ownerregarding all details of the installation. This includes procedures for curing, dryout, anchoring, repairs, and quality control. The owner or their authorized representative is the ultimate authority for project specification conformance.

The ASTM C704 standard requires the use of two specimens per sample for testing abrasion resistance:

“The abrasion resistance shall be determined using two 4½ in. × 4½ in. × 1 in. (114 mm × 114 mm × 25 mm) specimens per test sample.”

— API Std 936, Section 6.4.4, Abrasion Resistance​

This ensures accurate and reproducible results for quality control in refractory installations.

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According to API Standard 936, the correct specimen dimensions for cold crush strength testing are:

“Test specimens for cold crushing strength shall be2 in. (50 mm) cubesamples prepared in accordance with ASTM C133.”

—API Std 936, Section 6.4.2​

This directly invalidates option A, which incorrectly states the specimen size as 4-1/2 inches.

For the other options:

Option B – Density determination:

API 936 states that density shall be measured using the same specimens used for linear change and abrasion resistance:

“Bulk density shall be determined using the same specimens prepared for the linear change and abrasion resistance tests.”

—API Std 936, Section 6.4.3​

“These specimens include cubes, linear change bars, and erosion plates.”

—Appendix A, API Std 936​

Option C – Abrasion resistance specimen size:

“Two 4-1/2 in. × 4-1/2 in. × 1 in. (114 mm × 114 mm × 25 mm) specimens shall be prepared for abrasion resistance testing.”

—API Std 936, Section 6.4.4​

Option D – Permanent linear change specimen size:

“Permanent linear change (PLC) is determined with a bar 2 in. × 2 in. × 9 in. (50 mm × 50 mm × 230 mm) cast in steel molds.”

—API Std 936, Section 6.4.1​

Therefore, Option A is the only false statement.

API TR 980 provides guidance for hot weather installation, recommending:

“Preventive measures include shading material and equipment, cooling of mix water and forms, and in some cases, air conditioning of ambient air. Spraying water on equipment may be used to reduce radiant heat.”

— API TR 980, Section 4.5.2​

However, decreasing mixing time is not advised; it can result in insufficient material wet-out or inconsistent dispersion. Therefore:

A (air conditioning): Acceptable

B (decreasing mixing time): Not acceptable

C (shading): Acceptable

D (spraying water): Acceptable

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This definition is rooted in petroleum refining terminology used in the context of fluid catalytic cracking (FCC) units:

“Reactor: The vessel in which the cracking reaction occurs or is completed and in which the product gases are separated from coke and/or catalyst particulate.”

— API Std 936, Definitions, Section 3​

Option B is the correct term describing this component. A stripper removes volatiles, a regenerator burns off coke from spent catalyst, and a standpipe is used for catalyst transport—not for the cracking reaction itself.

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