Online Access Free API-936 Practice Test

Abrasion resistance of a material is reported as loss of:

• A.volume.
• B.area.
• C.density.
• D.mass.

Test results received from cast sample mock-ups will serve to qualify the:

Correct Answer:

Explanation:
mixing time
mix water levels
installation procedures
According to API Std 936 and supporting guidance from TR 980, cast sample mock-ups are used during pre-installation trials to ensure the suitability and repeatability of installation variables such as mixing procedures and water content. These mock-ups are critical to confirm that the material can be properly installed under anticipated field conditions.
From API 936:
"Mock-up cast sample trials shall be used to demonstrate the adequacy of the mixing time, water addition (mix water levels), and installation procedures prior to production installation."
- API Std 936, Section 6.3.2
This ensures that full-scale application performance is achievable using the approved methods and materials. However:
The "quality of the inspection equipment" and
"fabricator of the mock-up"
are not part of the qualification objectives defined for cast sample testing.
Correct selections:
mixing time
mix water levels
installation procedures

Sections of the lining below minimum thickness shall be:

• A.discussed with engineer.
• B.increased in thickness with a skim coat.
• C.roughed and gunned to full thickness.
• D.cut out entirely and replaced.

The installation contractor is required to secure an advance agreement that concerns all the installation details from the:

• A.Inspector.
• B.Manufacturer.
• C.Engineering company.
• D.Owner.

If application of hydraulic bonded or chemical setting refractory is interrupted, the refractory lining shall be:

• A.cut back within 30 minutes.
• B.cut back within 1 hour.
• C.immediately cut back to the shell between anchors.
• D.cut back to the shell in a straight line.