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API-936 (Refractory Personnel) Certification Exam is an industry-recognized certification that evaluates and certifies the knowledge and skills of professionals working in the refractory industry. Refractory materials are used in high-temperature environments such as furnaces, boilers, and reactors. They play a critical role in ensuring the safe and efficient operation of these systems. The API-936 certification exam assesses the knowledge and skills required to ensure that refractory materials are installed, inspected, and maintained in accordance with industry standards and best practices.
API-936 certification is highly valued in the industry and is a testament to the candidate's expertise in the field of refractory installation and inspection. The API-936 Certification is not only a mark of excellence but also a way to demonstrate one's commitment to safety, quality, and professionalism in the workplace. Many companies in the oil and gas industry require API-936 certified personnel to ensure proper installation and maintenance of refractory materials, making it a highly sought-after certification for professionals in the field.
API-936 Positive Feedback - API-936 Study ReferenceThus, it will allow you to examine the API API-936 Dumps before purchasing it. TestKingIT proudly presents the exceptional API API-936 material that will meet your expectations. Beware that the sections of the exam change from time to time. Therefore, be alert by checking the updates frequently. It will prevent you from wasting time, material expenses, and inner peace. API Refractory Personnel Sample Questions (Q37-Q42):NEW QUESTION # 37
Refractory samples cast during the mock-up are cured for a minimum of:
A. 24 hours.
B. 12 hours.
C. 18 hours.
D. 8 hours.
Answer: A
Explanation:
Mock-up installations serve as a qualification tool to verify that the installation procedures, personnel, and equipment can consistently meet quality standards. API 936 stipulates that refractory samples cast during the mock-up must becured for a minimum of 24 hoursbefore demolding or further processing. This curing period ensures full initial set and adequate strength development of the castable.
Failure to meet this curing requirement can result in incomplete hydration, premature cracking, or misleading performance test results. The 24-hour period allows for optimal moisture retention and chemical reaction completion in hydraulic-bonded castables.
Reference:
API Std 936, Section 6.3.3 - "Samples cast during the mock-up shall be cured in accordance with manufacturer's recommendations but not less than 24 hours under standard conditions."
NEW QUESTION # 38
When performing the ASTM C704 and ASTM C133 refractory tests, the specimen should be fired to what temperature?
A. 815¡ãF (435¡ãC)
B. 2730¡ãF (1500¡ãC)
C. 1500¡ãF (815¡ãC)
D. 1000¡ãF (540¡ãC)
Answer: C
Explanation:
As per the testing procedures outlined in API 936:
"All specimens used in ASTM C704 and ASTM C133 tests shall be dried and fired to 1500¡ãF (815¡ãC) prior to testing."
- API Std 936, Section 6.3.1
Firing to 1500¡ãF ensures proper evaluation of the refractory's behavior under service conditions.
NEW QUESTION # 39
What is the ASTM test designation for cold crush strength?
A. C-704
B. C-113
C. C-133
D. C-417
Answer: C
Explanation:
The correct ASTM designation for testingcold crushing strength (CCS)of refractory materials isASTM C133.
This test determines the load at which a sample fails under compressive stress and is essential for assessing the structural integrity of castable and formed refractories.
ASTM C113 relates to permanent linear change.
ASTM C704 is for abrasion resistance.
ASTM C417 is not related to CCS in this context.
Reference:
API Std 936 references ASTM C133 as the governing method for determining cold crushing strength of refractory samples.
Also validated in API TR 978 -Monolithic Refractories: Properties and Selection
NEW QUESTION # 40
All the samples for the CCs test must be dried at 220 to 230?C (105 to 110?C) for
A. 18 hrs (overnight)
B. 24 hrs (overnight)
C. 12 hrs (overnight)
D. 20 hrs (overnight)
Answer: B
NEW QUESTION # 41
In the absence of owner specification, which party or individual sets the temperature limits for refractory and mix water?
A. Contractor
B. Independent refractory laboratory
C. Inspector
D. Manufacturer
Answer: D
Explanation:
When the owner does not provide explicit temperature criteria for mixing and placement, the refractory manufacturer's instructions prevail:
"If not specified by the owner, the refractory manufacturer's published recommendations shall be followed for temperature limits of both material and mixing water."
- API TR 980, Section 4.5.2
Thus, Option B is correct.
NEW QUESTION # 42
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