metallurgy

100問 • 1年前

問題一覧

these are those Most widely used for election in mineral flotation and may be classified into two types of hoarding to the structure of the polar group

anionic collectors

The following are factors which affect screen performance except

Number of screen aperture

The effectivity of the gravity concentration method is determined by this expression (Dh-Df) / (Dl-Df)

Concentration criterion

Inflotation, it is always harder to eliminate collectors already absorb than prevent its absorption to prevent loss of selectivity which of the following will you recommend

Use scholar with a longer hydrocarbon chain

please complete the following statement when the concentration is less than 1.25,

Gravity concentration is not commercially feasible

It is a small amount which contains all the component in the proportions in which they occur in the original lot

Sample

This process involves the formation of much more agglomerate and relies upon molecules of reagent reacting as a bridge between separate suspended particles the agents use to form bridges or the long chain organic polymer. What do you call the process?

Flocculation

The following are activators, except

Sodium carbonate

The molecules concentration in the surface layer with the non-polar groups oriented towards the air and the polar groups towards the water. This is the behavior of.

frother molecule

It is the theory on comminution which states that the energy consumed in size production is proportional to the area of new surface produce

rittingers theory

It is the theory of comminution which states that the work required is proportional to the reduction in volume of the particles concerned

kicks theory

It is the theory in comminution which states that the work in is proportional to the new crack length produced in particle breakage, and equals the word represented by the product minus represented by fee

bonds theory

A hand sampling technique were in broken rocks or picked up random at some convenient location to form sample

Grab

Enhance sampling procedures this technique provides the smallest possible errors in sampling

Channel sampling

What is the most common associated element for porphyry copper? (island arc type)

The feed concentrating system is called

Head

The most common method of concentrating chromite is by

jigging

The copper mineral that has the highest copper content is

chalcocite

In order dressing, seavenging refers to

Treatment of rougher tails to mixture recover

The gangue mineral in a zinc complex ore is

siderite

Metallic aluminum is produced by

Electrolysis of fused salts

Massive pyrite is mined primarily as a source of

Sulfuric for sulfuric acid production

The most common practice of reporting hardness of ore is

bonds work index

The number of calories absorbed when 1 g molecular weight of a compound is formed from its element is called

Latent heat of reaction

The fundamental heat unit in the English system is

Btu

1 pound mole of gas at standard condition occupies

356 cu ft

Avocados number is the number of atoms in 1 g atoms, which is

6.02×10 raised to 23

Pulp density is the

ratio of the water to solid by weight

Calculated head refers to

Grams of metal in product over 100 feet

The conditioner used to regulate alkalinity of the pulp is

Cao

The flotation process of recovering two or more minerals as separate concentrate is called

differential flotation

Substances that inhibits flotation of minerals are called

depress ore

The most widely used collectors are

xanthates

The most common frother used in flotation is

pine oil

in order saying sulfide minerals, most readily to

flotation

One of this concentration processes, not gravity method

hand picking

I’m middling in concentration refers to

Contains ore and minerals lock together

Cyclone is a

Classifier

Hindered settling refers to

Settling of minerals in the thick pulp

The method of separating a mixture of minerals into two or more products on the basis of velocities at which the creams will fall through after medium is called

Classification

The mesh number of a screen is

Number of opening per linear inch

In Tyler standard series, the openings are regulated, such that the ratio in any screen to the next screen is

1.414

The purpose of closer circuit grinding is

Prevent over grinding

The part of crusher that determines the maximum size that will enter the crusher

Gape

gyratory crusher is

Primary

The main object of comminution is

Liberation of ore minerals from the gangue minerals

The process of separating the or minerals from the gum minerals is

Ore dressing

Process used to produce a concentrated gold silver solution from which least metals could be covered by electrowinning

elution

collector reagents used for flotation of salts oxidized ores

oxyhydryluc

Collector reagent used for flotation of sulfide ores

sulphysdrylic

Fire assaying is considered

Gravity metric

If this used to separate gold from silver

Nitric acid

used in commercial recovery of gold and silver from there ore

Sodium cyanide

Jaw crusher is a ______ crusher

Primary

An active readily fusible acid flux with a chemical formula of an E2B407 10 H2O

Borax

It contains precious metals like gold and silver also contains 35 to 65% copper

Matte

The process of heating to an elevated temperature without fusing a metal or metallic compounds in contact with oxygen water vapor Etc

Roasting

it contains 40 to 50 kg per Cubic meter of copper 180 to 200 kg per cubicm³ of each 2S04 brightening and smoothing agents

Electrolyte

Gold is soluble in

Aqua Regia

Floor is used in assay as

Reducing agent

The step in assay that forms the dore is

Cupellation

Soda ash is a powerful

Basic flux

Formula of iron oxide and silica FEOSIO2 is

Bisilicate

In fission process in assay, the agent that enhance fluid is

Soda Ash

The artificial sulfide formed in the driveway in assaying is

matte

an alloy, sufficient and precious metals bearing in economic significance is

bullion

The assay in gold bullion is expressed as

Fineness

chiddy method is applicable in analyzing

au in cyanide solution

slag factor is

ratio of the oxygen in the acid component

The method of assaying carried out in a shallow clay dish by oxidizing fusion is calledThe method of assaying carried out in a shallow clay dish by oxidizing fusion is called

scorification

The element that causes frequent trouble in Ag assay is

An in-quart is added to

establish the ideal silver to gold ratio to enhance parting

Slag in the process fusion becomes very viscous due to

insufficient fusion time

purpose of charge calculation is to

control size of the button

In assaying loaded carbon, the oxidizing agent used is

niter

The reducing power of pyrite when soda ash is added

increased

an assay ton is

29.199gm

Silica is

acid flux

for sulfide ores we use

niter

The step where the Pb is oxidized is called

cupellation

mercury vaporizes

369°C

The alloy of gold and silver produces after cupellation is

dore

The reducing power of flour isThe reducing power of flour is

To prepare a cupel, the principal component is

bone ash

The ideal size of Pb button is

25gm

The oxidizing power of niter is

12 ka rat gold is

50% AU

An aggregate of minerals from which metal maybe extracted at a profit is called

ore

The formula of Magnetite

FE204

The formula of enargite

Cu3AsS4

A most common gold ore is

Gold quartz

A most common important ore minerals of manganese is

pyrolusite

In ball milling, the ball charge centrifuge when the

critical speed exceeded

The primary grinding, the ideal circulating load ratio is

250

a thickener is

dewatering equipment

Commercial sink-and-float processes used as medium

ferrosilicon

The metallurgical recovery refer to

percent of metal contained in the concentrate against metal in the ore

If f, c, and t are corresponding metal assays as feed, concentrate and tails, then the ratio of concentration maybe expressed as

(c – t)/ (f – t)

Coal suited for the production of coke is

bituminous

100

The universal fuel used in metallurgical furnaces isThe universal fuel used in metallurgical furnaces is

coke

metallurgy 2

Aira Moral · 52問 · 1年前

metallurgy 2

52問 • 1年前

Aira Moral

EXAM NO: 1 : GEOLOGY AND MINING TERMS

Aira Moral · 100問 · 1年前

EXAM NO: 1 : GEOLOGY AND MINING TERMS

100問 • 1年前

Aira Moral

EXAM 2: Geology and Mining Terms

Aira Moral · 50問 · 1年前

EXAM 2: Geology and Mining Terms

50問 • 1年前

Aira Moral

EXAM 3

Aira Moral · 80問 · 1年前

EXAM 3

80問 • 1年前

Aira Moral

Principles of Mining

Aira Moral · 25問 · 1年前

Principles of Mining

25問 • 1年前

Aira Moral

MINERALS

Aira Moral · 51問 · 1年前

MINERALS

51問 • 1年前

Aira Moral

master

Aira Moral · 5問 · 1年前

master

5問 • 1年前

Aira Moral

STRUCTURAL GEOLOGY

Aira Moral · 11問 · 1年前

STRUCTURAL GEOLOGY

11問 • 1年前

Aira Moral

問題一覧

these are those Most widely used for election in mineral flotation and may be classified into two types of hoarding to the structure of the polar group

anionic collectors

The following are factors which affect screen performance except

Number of screen aperture

The effectivity of the gravity concentration method is determined by this expression (Dh-Df) / (Dl-Df)

Concentration criterion

Inflotation, it is always harder to eliminate collectors already absorb than prevent its absorption to prevent loss of selectivity which of the following will you recommend

Use scholar with a longer hydrocarbon chain

please complete the following statement when the concentration is less than 1.25,

Gravity concentration is not commercially feasible

It is a small amount which contains all the component in the proportions in which they occur in the original lot

Sample

Flocculation

The following are activators, except

Sodium carbonate

The molecules concentration in the surface layer with the non-polar groups oriented towards the air and the polar groups towards the water. This is the behavior of.

frother molecule

It is the theory on comminution which states that the energy consumed in size production is proportional to the area of new surface produce

rittingers theory

It is the theory of comminution which states that the work required is proportional to the reduction in volume of the particles concerned

kicks theory

bonds theory

A hand sampling technique were in broken rocks or picked up random at some convenient location to form sample

Grab

Enhance sampling procedures this technique provides the smallest possible errors in sampling

Channel sampling

What is the most common associated element for porphyry copper? (island arc type)

The feed concentrating system is called

Head

The most common method of concentrating chromite is by

jigging

The copper mineral that has the highest copper content is

chalcocite

In order dressing, seavenging refers to

Treatment of rougher tails to mixture recover

The gangue mineral in a zinc complex ore is

siderite

Metallic aluminum is produced by

Electrolysis of fused salts

Massive pyrite is mined primarily as a source of

Sulfuric for sulfuric acid production

The most common practice of reporting hardness of ore is

bonds work index

The number of calories absorbed when 1 g molecular weight of a compound is formed from its element is called

Latent heat of reaction

The fundamental heat unit in the English system is

Btu

1 pound mole of gas at standard condition occupies

356 cu ft

Avocados number is the number of atoms in 1 g atoms, which is

6.02×10 raised to 23

Pulp density is the

ratio of the water to solid by weight

Calculated head refers to

Grams of metal in product over 100 feet

The conditioner used to regulate alkalinity of the pulp is

Cao

The flotation process of recovering two or more minerals as separate concentrate is called

differential flotation

Substances that inhibits flotation of minerals are called

depress ore

The most widely used collectors are

xanthates

The most common frother used in flotation is

pine oil

in order saying sulfide minerals, most readily to

flotation

One of this concentration processes, not gravity method

hand picking

I’m middling in concentration refers to

Contains ore and minerals lock together

Cyclone is a

Classifier

Hindered settling refers to

Settling of minerals in the thick pulp

The method of separating a mixture of minerals into two or more products on the basis of velocities at which the creams will fall through after medium is called

Classification

The mesh number of a screen is

Number of opening per linear inch

In Tyler standard series, the openings are regulated, such that the ratio in any screen to the next screen is

1.414

The purpose of closer circuit grinding is

Prevent over grinding

The part of crusher that determines the maximum size that will enter the crusher

Gape

gyratory crusher is

Primary

The main object of comminution is

Liberation of ore minerals from the gangue minerals

The process of separating the or minerals from the gum minerals is

Ore dressing

Process used to produce a concentrated gold silver solution from which least metals could be covered by electrowinning

elution

collector reagents used for flotation of salts oxidized ores

oxyhydryluc

Collector reagent used for flotation of sulfide ores

sulphysdrylic

Fire assaying is considered

Gravity metric

If this used to separate gold from silver

Nitric acid

used in commercial recovery of gold and silver from there ore

Sodium cyanide

Jaw crusher is a ______ crusher

Primary

An active readily fusible acid flux with a chemical formula of an E2B407 10 H2O

Borax

It contains precious metals like gold and silver also contains 35 to 65% copper

Matte

The process of heating to an elevated temperature without fusing a metal or metallic compounds in contact with oxygen water vapor Etc

Roasting

it contains 40 to 50 kg per Cubic meter of copper 180 to 200 kg per cubicm³ of each 2S04 brightening and smoothing agents

Electrolyte

Gold is soluble in

Aqua Regia

Floor is used in assay as

Reducing agent

The step in assay that forms the dore is

Cupellation

Soda ash is a powerful

Basic flux

Formula of iron oxide and silica FEOSIO2 is

Bisilicate

In fission process in assay, the agent that enhance fluid is

Soda Ash

The artificial sulfide formed in the driveway in assaying is

matte

an alloy, sufficient and precious metals bearing in economic significance is

bullion

The assay in gold bullion is expressed as

Fineness

chiddy method is applicable in analyzing

au in cyanide solution

slag factor is

ratio of the oxygen in the acid component

The method of assaying carried out in a shallow clay dish by oxidizing fusion is calledThe method of assaying carried out in a shallow clay dish by oxidizing fusion is called

scorification

The element that causes frequent trouble in Ag assay is

An in-quart is added to

establish the ideal silver to gold ratio to enhance parting

Slag in the process fusion becomes very viscous due to

insufficient fusion time

purpose of charge calculation is to

control size of the button

In assaying loaded carbon, the oxidizing agent used is

niter

The reducing power of pyrite when soda ash is added

increased

an assay ton is

29.199gm

Silica is

acid flux

for sulfide ores we use

niter

The step where the Pb is oxidized is called

cupellation

mercury vaporizes

369°C

The alloy of gold and silver produces after cupellation is

dore

The reducing power of flour isThe reducing power of flour is

To prepare a cupel, the principal component is

bone ash

The ideal size of Pb button is

25gm

The oxidizing power of niter is

12 ka rat gold is

50% AU

An aggregate of minerals from which metal maybe extracted at a profit is called

ore

The formula of Magnetite

FE204

The formula of enargite

Cu3AsS4

A most common gold ore is

Gold quartz

A most common important ore minerals of manganese is

pyrolusite

In ball milling, the ball charge centrifuge when the

critical speed exceeded

The primary grinding, the ideal circulating load ratio is

250

a thickener is

dewatering equipment

Commercial sink-and-float processes used as medium

ferrosilicon

The metallurgical recovery refer to

percent of metal contained in the concentrate against metal in the ore

If f, c, and t are corresponding metal assays as feed, concentrate and tails, then the ratio of concentration maybe expressed as

(c – t)/ (f – t)

Coal suited for the production of coke is

bituminous

100

The universal fuel used in metallurgical furnaces isThe universal fuel used in metallurgical furnaces is

coke