Study API-936 Exam Dumps To Prepare For Refractory Personnel Exam Well

Eleanor2022-12-20T08:29:39+00:00

The API-936 Refractory Personnel exam is to identify your possessing the knowledge of API STD 936 Refractory Installation Quality Control Guidelines. If you are planning for the API-936 exam, just come here to choose the API-936 exam dumps as the study materials. The API-936 exam dumps give you complete idea about the Refractory Personnel certification exam. Study API-936 exam dumps to prepare for your Refractory Personnel exam well.

You will have a chance to read API-936 free dumps first:

Page 1 of 3

1. Based on-screen analysis, the size of Alumina C silicate aggregate in typical modern castable is

50 C 60%

60 C 70%

70 C 8-%

None of the above

2. Refractories means

Hard to fuse

Hard to test

Hart to set

None of the above

3. Refractories whose major constituent is lime, magnesia, or both and which may react chemically with acid refractories, acid slags, or acid fluxes at a high temperature is known as

Acid refractories

Basic refractories

Natural refractories

None f the above

4. The most commonly used binder for refractory concrete is

calcium aluminate cement

cements

silicates

all of the above

5. In API RP 936, the referenced ASTM standard procedure for cold crushing strength and modulus of rupture is

C 133 C 97

C704 C 01

C181 C 91

None of the above

6. Materials having refractory properties which form a refractory body when bonded into a conglomerate mass by a matrix is called

Cementitious concrete

Refractory mass

Refractory aggregate

None of the above

7. The selected compression test section of the specimen for the CCs test shall be free from

cCracks

Chipped surfaces

Other obvious defects

All of the above

8. Castable, gunning mixes, ramming mixes, plastics, and mortars are

Shaped refractory

Unshaped refractory

Refractory fiber

All of the above

9. Refractories chemically and physically stable at

Low temperatures

Average temperatures

High temperatures

None of the above

10. Compositions of ground refractory materials which require relatively high temperatures for the development of an adequate bond (commonly called the ceramic bond) is called

air setting refractories

heat setting refractories

air and heat setting refractories

none of the above

Page 2 of 3

11. Cristobalite is an important constituent of

Alumina bricks

Silica brick

Magnesia brick

Insulating brick

12. Refractories containing a substantial amount of silica which is reactive with basic refractories, basic slags, or basic fluxes at high temperatures are known as

Acid refractories

Basic refractories

Natural refecatories

None of the above

13. The functions of refractories include resistance to other destructive influences such as abrasion, pressure, chemical attack, and or rapid changes in temperature is called.

Primary function

Secondary function

Tertiary function

None of the above

14. Alumina C silica refractories containing 45% or more alumina, materials used in their production include diaspore, bauxite, gibbsite, kyanite, sillimanite, alusite, and fused alumina (artificial corundum) is called

fire clay refractory

insulating refractories

high alumina refractories

all of the above

15. A group of rock minerals having nearly perfect cleavage in one direction and consisting of thin elastic plates and the most common varieties are muscovite and biotite is called

Corundum

Kaolin

Mica

None of the above

16. Forms (types) of refractory

Shaped

Unshaped

Refractory (ceramic) fibers

All above

17. Compositions of ground refractory materials develop a strong bond at air ambient temperatures by virtue of chemical reactions within the binder phase that is usually activated by water additions. These refractories include cement and phosphate bonded castables is called:

Air setting refractories

Heat setting refractories

Air and heat setting refractory

None of the above

18. Based on screen analysis the fines (cement, fumed silica, fine alumina) in typical modern castable is

40 C 50%

30 C 40%

20 C 30%

None of the above

19. A natural or synthetic mineral theoretically consisting solely of alumina (Al2O3), specific gravity 4.00 C 4.02, melting point 3720?

F. (2050? C) Hardness 8.8 is called

Corundum

Kaolin

Mica

None of the above

20. A group of impure magnesium silicate minerals that occur in a fiberous form is known as

Asbestos

Mineral fibre

Fused silica

None of the above

Page 3 of 3

21. A high alumina mineral usually consists of rounded concretionary grains embedded in clay-like mass and is believed to consist essentially of alumina trihydrate (Al2O3 H2O) and alumina hydrate (Al2O3 H2O) in varying proportions is called

kyanite

bauxite

fused alumina

alusite

22. The test specimen of castable refractory for cold crushing strength shall be

2 in. (51mm) cubes

Cylinders, 2 in. (51mm)in dia. by 2 in.(51 mm) height

a or b

none of the above

23. Which function of refractories is to resist temperature?

Primary function

Secondary function

Tertiary function

None of the above

24. 1.Brick, tile, fired shapes and fused cast shapes are

shaped refractory

unshaped refractory

refractory fiber

all above

25. Fused silica aggregate is used as a raw material in a castable providing

Low thermal conductivity

Low thermal expansion

Low thermal conductivity and low thermal expansion

None of the above

26. For fire clay and some high alumina materials, the most commonly used index of refractoriness is known as:

Refractoriness

Pyrometric cone equivalent

Refractoriness under load

None of the above

27. In ceramics, the property of resistance to melting, softening, or deformation at high temperature is called.

Refractoriness

Pyrometric cone equivalent

Cold crushing strength

None of the above

28. Blanket, Module, Bulk paper, rope, and vacuum formed shaped are:

Shaped refractory

Unshaped refractory

Refractory fibers

All of the above

29. Commercially on calcined basis bauxite must contain at least

65% fused silica

60% alumina

65% alumina

None of the above

30. A combination of refractory grain and suitable bonding agent that, after the addition of a proper liquid, is generally poured into place to form a refractory shape or structure which becomes rigid because of chemical action is called

mortar

castable

ceramic modules

all of the above

Study API-936 Exam Dumps To Prepare For Refractory Personnel Exam Well