API 936 PRACTICE TEST QUESTIONS AND
CORRECT ANSWERS
What does the scope of API 936 provide?
Provides installation quality control guidelines for monolithic refractory lining and may be
used to supplement owners specifications
What section of API 936 mentions the responsibilities of the inspector?
The scope of the inspector responsibilities who monitor and control the quality control
process are also defined
What two items if using API 936 are mandatory to be done?
The refractory applied by this guideline shall be sampled and tested to verify that
physical properties meet intended criteria
What is the acceptance / rejection criteria for qualifications testing as per API
936?
For both material and applicator qualification testing, the average physical properties for
each sample shall fully meet the criteria established for that material in API 936
What are the acceptance / rejection criteria for as-installed testing?
Based on criteria and procedure prior to work to start
What are the qualifications of inspection personnel?
1. The inspector shall have no commercial affiliations with the contractor or
manufacturer(s), unless otherwise agreed to by the owner
2. The inspector shall have a working knowledge of applicable standard and terms as
defined in attached appendixes of this document
3. The inspector shall have a working knowledge or requirements defined in this
document, owner specifications and job specific requirements outlined by the owner or
manufacturer.
What are the responsibilities of inspection personnel?
1. The inspector shall monitor qualification and production work conducted by the
manufacturer(s) and contractor to ensure compliance with job specifications and
agreed-to-quality standards
2. The inspector shall notify the owner and the contractor in a timely manner of any
work deficiencies or potential deficiencies based on his or her monitoring of material
qualification and the installation process
3. The inspector shall make no engineering decisions contrary or in addition to specified
requirements
4. Any conflict between specified standards and installed refractory quality shall be
submitted to the owner for resolution
5. In cases involving repair and maintenance of existing equipment, the owner may
request the inspector to provide recommendations concerning the need and extent of
repairs and procedures to be used to make those repairs
6. The inspector shall inspect the hammer test newly-installed lining before dry out and
after dryout (when possible), and report any anomalies to the owner
7. The inspector shall ensure the material and applicator qualification test results are
, fully documented and the contractor is provided with all applicable data for the materials
being installed
8. The inspector shall check and verify that accurate installation records are being
documented by the contractor as per 4.4.8
9. The inspector shall record all nonconformance and/or potential problems to which the
inspector has alerted the contractor and owner
What are the codes / standards / specifications that are cited in this
recommended practice?
C113 - standard test method for Reheat Change of Refractory Brick
C133 - standard test method for Cold Crushing Strength & Modulus of Rupture of
Refractory
C704- standard test method for Abrasion Resistance of Refractory Materials at Room
Temperature
What are the other references recommended practice?
API Std 560 - Fired Heaters for General Refinery Service
ACI 3 547R - Refractory Concrete: Stage-of-the-Art Report
Erosion Services can be defined as:
Fluid solid units, such as transfer and overhead lines
Cyclones Linings
Deflector Shields
Define the Heating Contractor?
The contractor or subcontractor who specialized in the dry out of monolithic refractory
linings
Give 3 examples of Hexalt type Anchors
S-Bar
Hexcel
Curl and Tacko anchor
Define Independent Laboratory
refractory testing facility not affiliated with the manufacturer or contractor
Give 2 primary duties of the inspector
To monitor refractory installation work being conducted by the contractor
Supply materials and manufactures
Define Material Qualification Testing
Pre-installed testing of refractory materials in which production lots of refractories
manufactured for a specific installation are sampled and tested to confirmed that they
meet specified physical property requirements
Define Monolithic Refractories
Castable or plastic refractory applied by casting, gunning, or hand/ram packing to form
monolithic lining structures
What is a Production Run?
Quantity of refractory having the same formulation that is prepared in an uninterrupted
manufacturing operation
Name 5 results taken from a Test Sample
CORRECT ANSWERS
What does the scope of API 936 provide?
Provides installation quality control guidelines for monolithic refractory lining and may be
used to supplement owners specifications
What section of API 936 mentions the responsibilities of the inspector?
The scope of the inspector responsibilities who monitor and control the quality control
process are also defined
What two items if using API 936 are mandatory to be done?
The refractory applied by this guideline shall be sampled and tested to verify that
physical properties meet intended criteria
What is the acceptance / rejection criteria for qualifications testing as per API
936?
For both material and applicator qualification testing, the average physical properties for
each sample shall fully meet the criteria established for that material in API 936
What are the acceptance / rejection criteria for as-installed testing?
Based on criteria and procedure prior to work to start
What are the qualifications of inspection personnel?
1. The inspector shall have no commercial affiliations with the contractor or
manufacturer(s), unless otherwise agreed to by the owner
2. The inspector shall have a working knowledge of applicable standard and terms as
defined in attached appendixes of this document
3. The inspector shall have a working knowledge or requirements defined in this
document, owner specifications and job specific requirements outlined by the owner or
manufacturer.
What are the responsibilities of inspection personnel?
1. The inspector shall monitor qualification and production work conducted by the
manufacturer(s) and contractor to ensure compliance with job specifications and
agreed-to-quality standards
2. The inspector shall notify the owner and the contractor in a timely manner of any
work deficiencies or potential deficiencies based on his or her monitoring of material
qualification and the installation process
3. The inspector shall make no engineering decisions contrary or in addition to specified
requirements
4. Any conflict between specified standards and installed refractory quality shall be
submitted to the owner for resolution
5. In cases involving repair and maintenance of existing equipment, the owner may
request the inspector to provide recommendations concerning the need and extent of
repairs and procedures to be used to make those repairs
6. The inspector shall inspect the hammer test newly-installed lining before dry out and
after dryout (when possible), and report any anomalies to the owner
7. The inspector shall ensure the material and applicator qualification test results are
, fully documented and the contractor is provided with all applicable data for the materials
being installed
8. The inspector shall check and verify that accurate installation records are being
documented by the contractor as per 4.4.8
9. The inspector shall record all nonconformance and/or potential problems to which the
inspector has alerted the contractor and owner
What are the codes / standards / specifications that are cited in this
recommended practice?
C113 - standard test method for Reheat Change of Refractory Brick
C133 - standard test method for Cold Crushing Strength & Modulus of Rupture of
Refractory
C704- standard test method for Abrasion Resistance of Refractory Materials at Room
Temperature
What are the other references recommended practice?
API Std 560 - Fired Heaters for General Refinery Service
ACI 3 547R - Refractory Concrete: Stage-of-the-Art Report
Erosion Services can be defined as:
Fluid solid units, such as transfer and overhead lines
Cyclones Linings
Deflector Shields
Define the Heating Contractor?
The contractor or subcontractor who specialized in the dry out of monolithic refractory
linings
Give 3 examples of Hexalt type Anchors
S-Bar
Hexcel
Curl and Tacko anchor
Define Independent Laboratory
refractory testing facility not affiliated with the manufacturer or contractor
Give 2 primary duties of the inspector
To monitor refractory installation work being conducted by the contractor
Supply materials and manufactures
Define Material Qualification Testing
Pre-installed testing of refractory materials in which production lots of refractories
manufactured for a specific installation are sampled and tested to confirmed that they
meet specified physical property requirements
Define Monolithic Refractories
Castable or plastic refractory applied by casting, gunning, or hand/ram packing to form
monolithic lining structures
What is a Production Run?
Quantity of refractory having the same formulation that is prepared in an uninterrupted
manufacturing operation
Name 5 results taken from a Test Sample
