API API-936 EXAM EXERCISE | REAL API-936 EXAM

API API-936 Exam Exercise | Real API-936 Exam

API API-936 Exam Exercise | Real API-936 Exam

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Tags: API-936 Exam Exercise, Real API-936 Exam, Online API-936 Test, Exam API-936 Reference, API-936 Valid Exam Tips

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Getting the Refractory Personnel (API-936) certification is the way to go if you're planning to get into API or want to start earning money quickly. Success in the Refractory Personnel (API-936) exam of this credential plays an essential role in the validation of your skills so that you can crack an interview or get a promotion in an API company. Many people are attempting the API API-936 test nowadays because its importance is growing rapidly.

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>> API API-936 Exam Exercise <<

Real API-936 Exam | Online API-936 Test

Preparing for the API-936 exam can be a daunting task, but with real API-936 exam questions, it can be a lot easier. The importance of actual Refractory Personnel (API-936) questions cannot be overemphasized. API-936 Real Questions are crucial for passing the API-936 exam. When candidates have access to the updated API API-936 practice test questions, they are better prepared to succeed.

API-936: Refractory Personnel Exam is a valuable certification for individuals working with refractory materials in the petrochemical industry. It demonstrates an individual's knowledge and skills in the field and is highly valued by employers in the industry. Passing the exam requires a thorough understanding of refractory materials and their applications, as well as a commitment to safety and adherence to regulations.

API Refractory Personnel Sample Questions (Q69-Q74):

NEW QUESTION # 69
Which of the following conditions must be met for test results from trial mixes of low cement castables to be accepted for qualification?

  • A. Bulk density and CCS must exceed average values published in ASTM C401.
  • B. Specimens must be fired at 1500°F (815°C) and held for a minimum of 3 hours.
  • C. The drying process must be conducted at 220°F (104°C) for at least 48 hours before firing.
  • D. The water content must not vary more than ±1.0% from that recommended by the manufacturer.

Answer: D

Explanation:
Per API Std 936 Section 6.3.2.1, qualification trials for castable refractories require strict control over water content. The variation must be within ±1.0% of the manufacturer's recommended water addition to ensure consistency and reliability in performance.
"Acceptance of the test results from the cast sample trial shall be contingent on the mix water being within ±1.
0 % of that recommended by the manufacturer."
- API Std 936, Section 6.3.2.1


NEW QUESTION # 70
For fire clay and some high alumina materials, the most commonly used index of refractoriness is known as:

  • A. Refractoriness under load
  • B. None of the above
  • C. Pyrometric cone equivalent
  • D. Refractoriness

Answer: C


NEW QUESTION # 71
Size distribution of aggregate particles is determined by:

  • A. porosity.
  • B. screen analysis.
  • C. rebound.
  • D. expansion allowance.

Answer: B

Explanation:
The correct method for determining the size distribution of aggregate particles used in refractory castables isscreen analysis. This is a standardized technique for analyzing particle size distribution by passing material through a series of sieves with progressively smaller openings.
As specified in API 936 and related technical literature such as API TR 978 and API TR 980, aggregate grading and size distribution directly affect the packing density and therefore the performance of monolithic refractories. The screen analysis is fundamental in determining if aggregates fall within the prescribed grading ranges, which is critical for workability, density, and mechanical strength.
Reference:API TR 978 -Monolithic Refractories: Manufacture, Properties, and Selection, Section on
"Aggregate Grading"API Std 936 (Installation Quality Control of Monolithic Refractories) - ASTM C136
/C136M referenced in material property section.


NEW QUESTION # 72
Before application of a curing compound the hydraulic bond castable surface shall not be allowed to air dry longer than:

  • A. 2 hours.
  • B. 1 hour.
  • C. 8 hours.
  • D. 24 hours.

Answer: B

Explanation:
According to API 936 and TR 980,hydraulic bonded castablesshall not be allowed toair dry for more than 1 hourbefore the application of a curing compound. Prolonged exposure to air allows surface moisture to evaporate, leading to potential surface cracking and weak zones. Early application of curing compounds preserves internal hydration processes, which are essential for strength development.
Reference:
API TR 980 -Installation and Dryout, Section on hydraulic bonded castables: "Application of curing compound must occur within 1 hour of form removal or exposure."


NEW QUESTION # 73
Refractories chemically and physically stable at

  • A. Low temperatures
  • B. None of the above
  • C. High temperatures
  • D. Average temperatures

Answer: C


NEW QUESTION # 74
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