metallurgy 3

66問 • 2年前

ユーザ名非公開

通報

問題一覧

Voids or pore spaces within a material expressed as a percentage of the total volume of the material is called

poisture

calculated head refers to

grams of metal in product/100 gram per feed

in ore dressing sulfide minerals respond most likely to

flotation

if f c and t are corresponding metal assays as feed concentrate and tails then the ratio of concentration may be expressed as

(f-c)/(c-t)

what particular sulfide deposits are found in zone three of pod form chromate mineralization

Nickel platinum

The conditioner used to regulate alkalinity of the pulp is

CaO

Step in assaying wherein dore is formed is called

cupellation

ore is composed of

none of the above

the law that states that the energy consumed in grinding is proportional to the new surface area created is

rittingers law

the gangue mineral in a lead zinc complex ore id

siderite

A middlinh is concentration refers to

Feed the concentration system

lime is addrd in flotation as

ph regulator

one pound mole of gas at standard condition occupies

359 cu ft

The universal fuel used in metallurgical furnaces is

coke

These are good examples of bio chemical precipitation of iron minerals in which bacterial actions causes the precipitation of ferric oxide and hydroxides

bag deposit

the ratio of concentration of 50 to 1 means that

50 tons of ore produced in 1 ton of concentrate

avogadros number is the number of atoms in one gram atom which is

6.02x10^23

pod form from my deposits have three zones of mineralization in what particular zone do most metallurgical and refractory type of chromite associates

dunite

a most widely used collectors are

xanthates

the primary grinding the ideal circulating load rato is

250%

in carbon in pulp process of gold recovery granular carbon is called

after the gold is dissolved in the agitators

commercial sink and float processes used as medium

ferrosilicon

in ball milling the ball charge centrifuge when the

critical speed is exceeded

niter is a

Oxidizing agent

The process of separating the ore minerals from the gangue minerals is

ore dressing

acid mine drainage refers to

oxidation of sulfide rich minerals

The ratio of the weight of the head to the weight of the concentrate is called

concentration ratio

pulp density is

ratio of the water to solids by weight

leaching gold is considered

extractive metallurgy

coal suited for the production of coke is

bituminous

the sp. gr. / density of ore in which the voids and moisture are included

rock sp. gr. -natural

Depressors are substances that

Prevents collectors to anchor on the mineral surface

The method of separating a mixture of minerals into two or more products on the basis of velocities at which the grains will fall thru a fluid with medium is called

classification

Hindered settling refers to which of the following

settling of minerals in the thick pulp

a tonnage factor that is equal to 2000/62.5 has a unit of

cu. Ft/it

The percentage of the metal in the concentrate against the total metal contained in the ore is called

recovery

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

Differential flotation

The width of the opening at the discharge of a crusher is

set

sluice boxes are used kn

solid to solid separation

the CaO in CN solution to maintain protective alkalinity is

0.10%

the term “plasticity” is applied to material which

will not return to its original shape after being deformed

elasticity is the Property a body processes that allows

The body to return to its original shape after being deformed

malleability property of material is that property which allows

the material to be rolled to a desired shape without breaking

hardness property of material is a bodys ability

resist penetration

an example of a material with the mechanical property of brittleness is

cast iron

the malleability of most materials will ____ when the mterial is heated

increase

the mechanical property that determines whether a material will break or stand up under a sudden impact or hard blow is

toughness

materials which break rather than bend even though great force is required to break them are said to be

brittle

a material is said to possess ______ if it is very soft and easily deformed

plasticity

the property of a material which enables it to be deformed under tension or stretched without rupture

ductility

property of a material which enables it to resist wear abrasion and penetration

hardness

the material prpperty of toughness can be tested by 1. drop test 2. Charpy test 3. izod test 4. brinell test

2, 3

the materials ability to withstand great deformation under hugh loads before rupturing is a measure of its

ductility

bodys ability to resist change in shape and size under an applied load is known as

hardness

a material that will break suddenly without very much deformation occurrinh before fracture is called

brittle

examples if materials that have the mechanical property of hardness are 1. stellite 2. babbit 3. carbon tool steel 4. diamond

134

two common tests used to determine the toughness of a material are the charpy and ____ tests

izod

the ultimate strength of a material determined by a test known as the tensile test

true

a tensile test is performed by subjecting the specimen to a

stretchinh type load

cast iron is produced by melting pig iron together with

scrap iron

iron is produced in a blast furnace from

iron ore

cast iron has certain percentage of carbon present

2-4

the most important property a metal must posses to be used in construction of a spring is

elasticity

white metal used for slow speed and heavy load applications is composed of

15 10 75

of all the material listed below the one which the property of brittleness is the highest is

cast iron

a special type of alloy steel used for tool making is

high speed steel

metallurgy 1

metallurgy 1

met

met

Metallurgy 2

Metallurgy 2

mine econ

mine econ

問題一覧

Voids or pore spaces within a material expressed as a percentage of the total volume of the material is called

poisture

calculated head refers to

grams of metal in product/100 gram per feed

in ore dressing sulfide minerals respond most likely to

flotation

if f c and t are corresponding metal assays as feed concentrate and tails then the ratio of concentration may be expressed as

(f-c)/(c-t)

what particular sulfide deposits are found in zone three of pod form chromate mineralization

Nickel platinum

The conditioner used to regulate alkalinity of the pulp is

CaO

Step in assaying wherein dore is formed is called

cupellation

ore is composed of

none of the above

the law that states that the energy consumed in grinding is proportional to the new surface area created is

rittingers law

the gangue mineral in a lead zinc complex ore id

siderite

A middlinh is concentration refers to

Feed the concentration system

lime is addrd in flotation as

ph regulator

one pound mole of gas at standard condition occupies

359 cu ft

The universal fuel used in metallurgical furnaces is

coke

These are good examples of bio chemical precipitation of iron minerals in which bacterial actions causes the precipitation of ferric oxide and hydroxides

bag deposit

the ratio of concentration of 50 to 1 means that

50 tons of ore produced in 1 ton of concentrate

avogadros number is the number of atoms in one gram atom which is

6.02x10^23

pod form from my deposits have three zones of mineralization in what particular zone do most metallurgical and refractory type of chromite associates

dunite

a most widely used collectors are

xanthates

the primary grinding the ideal circulating load rato is

250%

in carbon in pulp process of gold recovery granular carbon is called

after the gold is dissolved in the agitators

commercial sink and float processes used as medium

ferrosilicon

in ball milling the ball charge centrifuge when the

critical speed is exceeded

niter is a

Oxidizing agent

The process of separating the ore minerals from the gangue minerals is

ore dressing

acid mine drainage refers to

oxidation of sulfide rich minerals

The ratio of the weight of the head to the weight of the concentrate is called

concentration ratio

pulp density is

ratio of the water to solids by weight

leaching gold is considered

extractive metallurgy

coal suited for the production of coke is

bituminous

the sp. gr. / density of ore in which the voids and moisture are included

rock sp. gr. -natural

Depressors are substances that

Prevents collectors to anchor on the mineral surface

The method of separating a mixture of minerals into two or more products on the basis of velocities at which the grains will fall thru a fluid with medium is called

classification

Hindered settling refers to which of the following

settling of minerals in the thick pulp

a tonnage factor that is equal to 2000/62.5 has a unit of

cu. Ft/it

The percentage of the metal in the concentrate against the total metal contained in the ore is called

recovery

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

Differential flotation

The width of the opening at the discharge of a crusher is

set

sluice boxes are used kn

solid to solid separation

the CaO in CN solution to maintain protective alkalinity is

0.10%

the term “plasticity” is applied to material which

will not return to its original shape after being deformed

elasticity is the Property a body processes that allows

The body to return to its original shape after being deformed

malleability property of material is that property which allows

the material to be rolled to a desired shape without breaking

hardness property of material is a bodys ability

resist penetration

an example of a material with the mechanical property of brittleness is

cast iron

the malleability of most materials will ____ when the mterial is heated

increase

the mechanical property that determines whether a material will break or stand up under a sudden impact or hard blow is

toughness

materials which break rather than bend even though great force is required to break them are said to be

brittle

a material is said to possess ______ if it is very soft and easily deformed

plasticity

the property of a material which enables it to be deformed under tension or stretched without rupture

ductility

property of a material which enables it to resist wear abrasion and penetration

hardness

the material prpperty of toughness can be tested by 1. drop test 2. Charpy test 3. izod test 4. brinell test

2, 3

the materials ability to withstand great deformation under hugh loads before rupturing is a measure of its

ductility

bodys ability to resist change in shape and size under an applied load is known as

hardness

a material that will break suddenly without very much deformation occurrinh before fracture is called

brittle

examples if materials that have the mechanical property of hardness are 1. stellite 2. babbit 3. carbon tool steel 4. diamond

134

two common tests used to determine the toughness of a material are the charpy and ____ tests

izod

the ultimate strength of a material determined by a test known as the tensile test

true

a tensile test is performed by subjecting the specimen to a

stretchinh type load

cast iron is produced by melting pig iron together with

scrap iron

iron is produced in a blast furnace from

iron ore

cast iron has certain percentage of carbon present

2-4

the most important property a metal must posses to be used in construction of a spring is

elasticity

white metal used for slow speed and heavy load applications is composed of

15 10 75

of all the material listed below the one which the property of brittleness is the highest is

cast iron

a special type of alloy steel used for tool making is

high speed steel