Free Practice Questions for API-936 Exam

Question 1

[Installation Procedures]

Newly applied cast linings must cure before stripping the forms per the:

Amanufacturer's recommendations.

Bowner's recommendations.

CMSDS.

Dinspector's recommendations.

Correct Answer: A. manufacturer's recommendations.

Question 2

[Inspection and Testing Requirements]

What is the size of a test specimen for permanent linear change of refractories?

A2 in. (50 mm) x 2-1/2 in. (64 mm) x 9 in. (230 mm)

B2-1/2 in. (64 mm) x 2-1/2 in. (64 mm) x 2 in. (50 mm)

C2 in. (50 mm) x 2 in. (50 mm) x 4 in.(100 mm)

D2 in. (50 mm) x 2 in. (50 mm) x 9 in. (230 mm)

Correct Answer: D. 2 in. (50 mm) x 2 in. (50 mm) x 9 in. (230 mm)

Question 3

[Inspection and Testing Requirements]

As-installed gunned test specimens are prepared by cutting specimens with a:

Adiamond saw

Bportable rescue saw

Ctrowel

Dband saw

Correct Answer: A. diamond saw

Question 4

[Responsibilities and Qualifications]

Conflicts in documents and/or drawings shall be resolved by the:

Ainspector.

Bowner.

Cengineering company.

Dinspector with 30 years of service/experience.

Correct Answer: B. owner.

Question 5

[Installation Procedures]

The lining surface should remain uncovered and free from contact with moisture during the curing period for what type of refractory?

AChemically bonded

BCeramic bonded

CCement bonded

DHydraulic bonded

Correct Answer: A. Chemically bonded

Question 6

[Material Requirements]

When is metal fiber reinforcement used in castable refractory?

AOnly when extra strength is required

BOnly when added in the field

CFor all monolithic hot face castable refractory materials

DOnly when specified by the owner

Correct Answer: D. Only when specified by the owner

Question 7

[Terms, Definitions, and Abbreviations]

Refractory abrasion is defined as the wearing away of the surface by:

Ahigh-velocity gases.

Bthe scouring action of moving solids.

Ccoke buildup.

Dhigh-velocity hydrocarbons.

Correct Answer: B. the scouring action of moving solids.

Question 8

[Acceptance Criteria]

Which of the following is a valid acceptance criterion for cold crushing strength of castable used in erosive service?

ACCS must be no less than 80% of the manufacturer's advertised maximum.

BCCS test values must average within 10% of the manufacturer's mean value.

CAll individual values must exceed 75% of the manufacturer's minimum published CCS.

DThe lowest result must exceed 90% of ASTM C401 average for gunned materials.

Correct Answer: C. All individual values must exceed 75% of the manufacturer's minimum published CCS.

Question 9

[Responsibilities and Qualifications]

Which of the following is the inspector responsible for?

AHammer testing newly installed linings

BProviding compliance data sheets

CTesting water to be used

DQualification testing

Correct Answer: A. Hammer testing newly installed linings

Question 10

[Material Requirements]

The term "shelf life" refers to the maximum time:

Amaterial may be stored and remains in usable condition.

Bfor material tests (expiration of test results).

Cit takes for products to be manufactured and installed.

Dthe mixed material can sit prior to use.

Correct Answer: A. material may be stored and remains in usable condition.