API 936 — Refractory Personnel Refractories Practice Questions
The free API 936 — Refractory Personnel questions that deal with refractories, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #2
2. Which test is commonly used to analyze the strength of refractories?
Correct answer: A
Explanation
Flexural strength tests assess how materials can withstand bending forces.
Question #4
4. What is the recommended moisture content for castable refractories before installation?
Correct answer: D
Explanation
Maintaining the right moisture content is critical for optimal performance during curing.
Question #8
8. What is a key characteristic of high alumina refractories?
Correct answer: D
Explanation
High alumina refractories have low thermal expansion, making them suitable for many high-temperature applications.
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