Metallurgy 2
問題一覧
1
Which of the following mineral is metallic
Hematite
2
And the site is what form of Rock
Mafic
3
Heritage resources operates across my beneficiation plant Herman Hunt 250 wet metric tons at 15% CR 203 11% FE03% each 20 Santa Barbara 200 WMT at 18% CR203 15% FE06% each 20 Lauren pay 300 what metric tons at 10% CR 203 and 8% FEO5 percent H2 oh what is the average CR 2F erasure of the blended ore feed to the heritage benificiation plant
1:1
4
Which of the following mineral exhibit a perfect do you need directional cleavage
Quartz
5
in a conventional conveyor belt arrangement what do you hold the ruler where the loaded belt passes
Carrier rollers
6
Which of the following is the economic mineral of manganese and it’s friable form
pyrolusite
7
Which of the following is commonly used as a leasing agent of tiles and other ceramic products
feldspar
8
which of the following is not a manganese ore
all of these
9
Which of the following physical characteristics reflects the rocks capability to absorb water
porosity
10
philex mining Treated the following tonnage and it’s bad color copper mines first 10,000 dry metric tons at 0.57% copper second 9000 dry metric plants at 0.50’s percent copper third 11,000 dramatic buns at 0.60% copper what is the total product output of the day
30,000 at 0.56% copper
11
Which of the following is an economic mineral source of mercury
cinnabar
12
Which of the following is not a sulfide mineral
malachite
13
In fire are assaying, slags obtained in crucible assay that have high litharge but low silica borax and other acids are usually
oxide slags
14
which of the following is an economic mineral of sulfur
pyrite
15
Which of the following is the most effective an economic means of neutralizing acid mind drainage
lime treatment
16
in fire assaying, the next procedure after obtaining Dore
weighing
17
which of the following is not a copper mineral
psilomelane
18
A daily feed to the copper mill is known to contain 15% chalcopyrite of the total tonnage mailed 10,000 wet metric tons with 3% moisture what is the process copper in the mill head
5.2%
19
Which of the following type of chromite mineral is used to manufacture paint pigments collard green and yellow
chemical grade
20
One of the following factors influence and enhance acid generation
availability of water
21
a nordberg jaw crusher has a rated capacity of 200TPH @100% efficiency. the circulating load is 15% how much ROMO feed can it take at any one time
170TPH
22
the size of steel ball charge in a regrind mill in principle is
smaller in size than in primary mill
23
which of the following is not a sulfide mineral
chromite
24
the principal mineral of manganese
magnesite
25
the chromite concentrate contains 48% chromite, 0.25% silica 6%manganese 18% chromic acid 11%feo
2.35:1
26
in fire assaying, what should be the condition of nitric acid solution before dropping in the bead to avoid breaking it into fine particles
it should be low in concentration
27
what do you call the process of grinding wherein very small amount of grinding media is used
semi autogenous grinding
28
in grinding, what do you call the ball mill rotation at which maximum grinding efficiency is attained
critical speed
29
in conventional belt conveyor arrangement what do you call the pulley where the counterweight is usually connected
idler pulley
30
the main purpose of regrind ball mill
increase the grade of final concentrate by detaching gangue minerals
31
heating of gold initially has a black color due to uneven surface caused or difference in reflection of light
annealing
32
in flotation, it refers to the process of recovering as much of still remaining valuable minerals in slurry
scavenging flotation
33
what is screw classifier
dewatering machine
34
in heap leaching of low. grade copper oxides the most common precipitation agent of copper
zinc
35
the rate capacity of the mill is 180TPH at 90% rate capacity efficiency. the circulating load is 10% what is the rate of feed in TPH
145 TPH
36
which of the following is the main component of drum or disc filter
vacuum pump
37
how much sulfur is in 1000MT of ore containing 25% galena 12% chromite 3% malachite 2% hematite and 3% moisture
32.45 MT
38
a mineral of the spinel group crystals and pureform are rare and it is usually massive the only important ore mineral of chromium
chromite
39
heat treatment processes where the metal or alloy is heated to some pre determined temperature and time and then cooked very slowly
annealing
40
in assaying if the weight of gold bead recovered is 2gms what is the grade assay of the ore if the sample is one assay ton
2gmt
41
reagent used in dissolving gold from finely ground ores through leaching
cyanide
42
the economic minerals for the manufacture of glass
feldspar
43
equipment used to vaporize mercury then later condensing the same back to its liquid form
retort
44
the number of products that a high capacity deck vibrating screen produce
four products
45
commonly used as drilling mud
barite
46
the binding agent in pelletizing of iron or chromite concentrates prior to smelting
bentonite
47
in a classifier the one that represenrs fines or slimes
overflow
48
used to manufacture special ceramics industrial products
refractory grade chromite
49
the cyanidation process where weaker cyanide solution are introduced to fresh ores while stronger cyanide solutions are introduced to the ores that have been earlier treated with cyanide
counter current decantation
50
Refers to the crystalline mode of the minerals. Three of the axes are of equal length and our symmetrically placed in one plane
hexagonal
51
screening equipment that has two separate products
Single deck screen
52
compact conveyor that feeds the crusher constantly using feeders
apron feeders
53
In conveying system components that provides proper about tensioning at all times to reduce or eliminate belt sliding and or sagging there by assuring belt speed
Counterweight
54
What do you call a vibrating screen that is fitted with two screen cloth of various openings
Double deck screen
55
What do you call the process of recovering chromite using the gravity differential between ore and gangue using water is separating medium
spiral concentration
56
the ore beneficiation of maricalum mining
conventional copper flotation
57
In sample preparation for fire assaying what do you call the process of dividing the crushed sample into two equal part
splitting
58
What do you call the grinding process where no grinding media excuse but instead of rock materials it self use usually soft ass grinding medium
autogenous grinding
59
Components of chemical Grade chromite ore
Cr2O3 and low SiO2
60
What do you call the filter machine that is fitted with a number of disc like elements wrapped in the filter cloth and fitted with a vacuum pump that suck the thickened pulp as the disc are immersed into the pulp
disc filters
61
DENR regulates the pH range of mine effluent discharge with various receiving water bodies
6 to 8 pH
62
important component of chemical grade girl might or aside from Cr2O3
5 to 9pH
63
The process of coatinh certain mine waste to prevent oxidation of pyrite. the mechanism involves leaching the waste with a phosphate solution with hydrogen peroxide is oxidized by the peroxide to release iron oxide
micro encapsulation
64
in rock crushing operations what do you haul the equipment that continuously feed the Braemar crusher with almost uniform load and at the same seggregates undesizes materialss that do not need to be crushed This machine like Weiss maximize capacity of the integration plan
vibrating grizzly
65
inconventional conveyor arrangement What do you call the rollers that guide and carried about to the tail pulley
Return rollers
66
aside from its importance in the world currency gold is very widely used in which of the following industries
Electronics industry
67
Cyanide contained in the mill tailings is lost during impoundment due to the which of the following processes
Evaporation when exposed to sunlight
68
The mineral recovery processes is most applicable to sulfide ores particularly Chalcopyrite
flotation
69
Refers to the crystalline modes of minerals that have three perpendicular axes of equal length
Isometric
70
in flotation this refers to the process of immediately recovering as many of the economic minerals as possible in one floatations the process is often applied to orders containing singular economic minerals
bulk flotation
71
refers to the reagents that accelerate fine to coarse particles to form bigger particles making them easier for thickening and filtration
flocculants
72
And grinding very hard andesite and diorite the rocks containing copper minerals which of the following is the most popular and economical grinding medium for optimum mineral liberation
steel balls
73
The most important characteristics of metallurgical grade chromite
high Cr :Fe ratio
74
Mineral hardness represented by a thumbnail
2.5
75
Refers to the kind of Mica colored white and with a composition of hydrous potassium aluminum silicates
dolomite
76
The process of further reducing crusher rocks to specified granulation sizes so that most of the economic minerals are liberated to the extent making them amenable to applicable beneficiation processes such as flotation gravity concentration cyanidation
attritioning
77
in jaw crusher installation what do you call that main component that act qs counterweight to allow constant rotation momentum of drive pulleys and provide sustained with impact to the movable job considering the load of the crashing
flywheel
78
The best used as a primary grinding mill
rod mill
79
The product of the solving gold in mercury
amalgam
80
Minerals used as coloring of green bottles
chromite
81
in tailings thickener installations, the equipment that pumps the resulting high density pulp to the tailings pond
volute pump
82
a symone cone crusher which was installed as a secondary crusher has a rated capacity of 180 TPH under two feeding condition it is observed that the crusher can handle 90% of its rated capacity only due to weak main drive axle. If The circulating load is 10% of its actual output how much material can the crusher take from the primary crusher at any one time
145 TPH
83
States that the physical and chemical processes that have acted throughout geologic time are the same processes that are observable today
uniformitarianism
84
The difference between metallurgical chromite and refractory chromite is that the former does not contain
Al2O3 and MgO
85
It is the stage in the environmental impact statement system where information and assessment requirements are established to provide a proponent with the scope of work of the environmental impact statement
scoping
86
coarse >2mm with large grains, rounded fragments Sedimentary rock
conglomerate
87
One of this concentration processes is not gravity method
hand picking
88
The metallurgical recovery refers to
percent of metal contained in the concentrate against metal in the ore
89
Where index is a measure of
degree of liberation of the ore
90
One of these does not belong to the group
aqua regia
91
if there is a distinctive difference in surface property the process indicated for concentration is
Flotation
92
The purpose of close circuit grinding is
Prevent ore grinding
93
Refers to the factor by which the volume of materials is reduced to weight in tonnes usually expressed as cu. Ft./ton or cu. M/MT
factor tonnage
94
The part of the crusher that determines the maximum size that will enter the crusher
gape
95
in the principle of flotation what do you call the reagents that are used to create vigorous effervescence or repellant bubbles in the slurry
frothers
96
In reflected light a silky appearance which results from the presence of many inclusions arranged parallel to ask Christallographic direction
chatoyancy
97
A phenomenon when a mineral emits visible light when heated to a low temperature below that of red heat is called
thermoluminescence
98
It is the backbone of the ceramic industry
clay
99
The mesh number of the screen is the
no. of opening per linear inch
100
A vein was located by three drill holes A, B, and C. B is 600 M N 20o E of A; both B and A are vertical drill holes and intersected the vein at depths of 900 M and 300 M respectively. C, an inclined drill hole located N 80o E and 440 M from A, intersected the vein at an inclination of 50o to the N 30o E at a length of 460 M. What is the strike of the vein
N 700 W
問題一覧
1
Which of the following mineral is metallic
Hematite
2
And the site is what form of Rock
Mafic
3
Heritage resources operates across my beneficiation plant Herman Hunt 250 wet metric tons at 15% CR 203 11% FE03% each 20 Santa Barbara 200 WMT at 18% CR203 15% FE06% each 20 Lauren pay 300 what metric tons at 10% CR 203 and 8% FEO5 percent H2 oh what is the average CR 2F erasure of the blended ore feed to the heritage benificiation plant
1:1
4
Which of the following mineral exhibit a perfect do you need directional cleavage
Quartz
5
in a conventional conveyor belt arrangement what do you hold the ruler where the loaded belt passes
Carrier rollers
6
Which of the following is the economic mineral of manganese and it’s friable form
pyrolusite
7
Which of the following is commonly used as a leasing agent of tiles and other ceramic products
feldspar
8
which of the following is not a manganese ore
all of these
9
Which of the following physical characteristics reflects the rocks capability to absorb water
porosity
10
philex mining Treated the following tonnage and it’s bad color copper mines first 10,000 dry metric tons at 0.57% copper second 9000 dry metric plants at 0.50’s percent copper third 11,000 dramatic buns at 0.60% copper what is the total product output of the day
30,000 at 0.56% copper
11
Which of the following is an economic mineral source of mercury
cinnabar
12
Which of the following is not a sulfide mineral
malachite
13
In fire are assaying, slags obtained in crucible assay that have high litharge but low silica borax and other acids are usually
oxide slags
14
which of the following is an economic mineral of sulfur
pyrite
15
Which of the following is the most effective an economic means of neutralizing acid mind drainage
lime treatment
16
in fire assaying, the next procedure after obtaining Dore
weighing
17
which of the following is not a copper mineral
psilomelane
18
A daily feed to the copper mill is known to contain 15% chalcopyrite of the total tonnage mailed 10,000 wet metric tons with 3% moisture what is the process copper in the mill head
5.2%
19
Which of the following type of chromite mineral is used to manufacture paint pigments collard green and yellow
chemical grade
20
One of the following factors influence and enhance acid generation
availability of water
21
a nordberg jaw crusher has a rated capacity of 200TPH @100% efficiency. the circulating load is 15% how much ROMO feed can it take at any one time
170TPH
22
the size of steel ball charge in a regrind mill in principle is
smaller in size than in primary mill
23
which of the following is not a sulfide mineral
chromite
24
the principal mineral of manganese
magnesite
25
the chromite concentrate contains 48% chromite, 0.25% silica 6%manganese 18% chromic acid 11%feo
2.35:1
26
in fire assaying, what should be the condition of nitric acid solution before dropping in the bead to avoid breaking it into fine particles
it should be low in concentration
27
what do you call the process of grinding wherein very small amount of grinding media is used
semi autogenous grinding
28
in grinding, what do you call the ball mill rotation at which maximum grinding efficiency is attained
critical speed
29
in conventional belt conveyor arrangement what do you call the pulley where the counterweight is usually connected
idler pulley
30
the main purpose of regrind ball mill
increase the grade of final concentrate by detaching gangue minerals
31
heating of gold initially has a black color due to uneven surface caused or difference in reflection of light
annealing
32
in flotation, it refers to the process of recovering as much of still remaining valuable minerals in slurry
scavenging flotation
33
what is screw classifier
dewatering machine
34
in heap leaching of low. grade copper oxides the most common precipitation agent of copper
zinc
35
the rate capacity of the mill is 180TPH at 90% rate capacity efficiency. the circulating load is 10% what is the rate of feed in TPH
145 TPH
36
which of the following is the main component of drum or disc filter
vacuum pump
37
how much sulfur is in 1000MT of ore containing 25% galena 12% chromite 3% malachite 2% hematite and 3% moisture
32.45 MT
38
a mineral of the spinel group crystals and pureform are rare and it is usually massive the only important ore mineral of chromium
chromite
39
heat treatment processes where the metal or alloy is heated to some pre determined temperature and time and then cooked very slowly
annealing
40
in assaying if the weight of gold bead recovered is 2gms what is the grade assay of the ore if the sample is one assay ton
2gmt
41
reagent used in dissolving gold from finely ground ores through leaching
cyanide
42
the economic minerals for the manufacture of glass
feldspar
43
equipment used to vaporize mercury then later condensing the same back to its liquid form
retort
44
the number of products that a high capacity deck vibrating screen produce
four products
45
commonly used as drilling mud
barite
46
the binding agent in pelletizing of iron or chromite concentrates prior to smelting
bentonite
47
in a classifier the one that represenrs fines or slimes
overflow
48
used to manufacture special ceramics industrial products
refractory grade chromite
49
the cyanidation process where weaker cyanide solution are introduced to fresh ores while stronger cyanide solutions are introduced to the ores that have been earlier treated with cyanide
counter current decantation
50
Refers to the crystalline mode of the minerals. Three of the axes are of equal length and our symmetrically placed in one plane
hexagonal
51
screening equipment that has two separate products
Single deck screen
52
compact conveyor that feeds the crusher constantly using feeders
apron feeders
53
In conveying system components that provides proper about tensioning at all times to reduce or eliminate belt sliding and or sagging there by assuring belt speed
Counterweight
54
What do you call a vibrating screen that is fitted with two screen cloth of various openings
Double deck screen
55
What do you call the process of recovering chromite using the gravity differential between ore and gangue using water is separating medium
spiral concentration
56
the ore beneficiation of maricalum mining
conventional copper flotation
57
In sample preparation for fire assaying what do you call the process of dividing the crushed sample into two equal part
splitting
58
What do you call the grinding process where no grinding media excuse but instead of rock materials it self use usually soft ass grinding medium
autogenous grinding
59
Components of chemical Grade chromite ore
Cr2O3 and low SiO2
60
What do you call the filter machine that is fitted with a number of disc like elements wrapped in the filter cloth and fitted with a vacuum pump that suck the thickened pulp as the disc are immersed into the pulp
disc filters
61
DENR regulates the pH range of mine effluent discharge with various receiving water bodies
6 to 8 pH
62
important component of chemical grade girl might or aside from Cr2O3
5 to 9pH
63
The process of coatinh certain mine waste to prevent oxidation of pyrite. the mechanism involves leaching the waste with a phosphate solution with hydrogen peroxide is oxidized by the peroxide to release iron oxide
micro encapsulation
64
in rock crushing operations what do you haul the equipment that continuously feed the Braemar crusher with almost uniform load and at the same seggregates undesizes materialss that do not need to be crushed This machine like Weiss maximize capacity of the integration plan
vibrating grizzly
65
inconventional conveyor arrangement What do you call the rollers that guide and carried about to the tail pulley
Return rollers
66
aside from its importance in the world currency gold is very widely used in which of the following industries
Electronics industry
67
Cyanide contained in the mill tailings is lost during impoundment due to the which of the following processes
Evaporation when exposed to sunlight
68
The mineral recovery processes is most applicable to sulfide ores particularly Chalcopyrite
flotation
69
Refers to the crystalline modes of minerals that have three perpendicular axes of equal length
Isometric
70
in flotation this refers to the process of immediately recovering as many of the economic minerals as possible in one floatations the process is often applied to orders containing singular economic minerals
bulk flotation
71
refers to the reagents that accelerate fine to coarse particles to form bigger particles making them easier for thickening and filtration
flocculants
72
And grinding very hard andesite and diorite the rocks containing copper minerals which of the following is the most popular and economical grinding medium for optimum mineral liberation
steel balls
73
The most important characteristics of metallurgical grade chromite
high Cr :Fe ratio
74
Mineral hardness represented by a thumbnail
2.5
75
Refers to the kind of Mica colored white and with a composition of hydrous potassium aluminum silicates
dolomite
76
The process of further reducing crusher rocks to specified granulation sizes so that most of the economic minerals are liberated to the extent making them amenable to applicable beneficiation processes such as flotation gravity concentration cyanidation
attritioning
77
in jaw crusher installation what do you call that main component that act qs counterweight to allow constant rotation momentum of drive pulleys and provide sustained with impact to the movable job considering the load of the crashing
flywheel
78
The best used as a primary grinding mill
rod mill
79
The product of the solving gold in mercury
amalgam
80
Minerals used as coloring of green bottles
chromite
81
in tailings thickener installations, the equipment that pumps the resulting high density pulp to the tailings pond
volute pump
82
a symone cone crusher which was installed as a secondary crusher has a rated capacity of 180 TPH under two feeding condition it is observed that the crusher can handle 90% of its rated capacity only due to weak main drive axle. If The circulating load is 10% of its actual output how much material can the crusher take from the primary crusher at any one time
145 TPH
83
States that the physical and chemical processes that have acted throughout geologic time are the same processes that are observable today
uniformitarianism
84
The difference between metallurgical chromite and refractory chromite is that the former does not contain
Al2O3 and MgO
85
It is the stage in the environmental impact statement system where information and assessment requirements are established to provide a proponent with the scope of work of the environmental impact statement
scoping
86
coarse >2mm with large grains, rounded fragments Sedimentary rock
conglomerate
87
One of this concentration processes is not gravity method
hand picking
88
The metallurgical recovery refers to
percent of metal contained in the concentrate against metal in the ore
89
Where index is a measure of
degree of liberation of the ore
90
One of these does not belong to the group
aqua regia
91
if there is a distinctive difference in surface property the process indicated for concentration is
Flotation
92
The purpose of close circuit grinding is
Prevent ore grinding
93
Refers to the factor by which the volume of materials is reduced to weight in tonnes usually expressed as cu. Ft./ton or cu. M/MT
factor tonnage
94
The part of the crusher that determines the maximum size that will enter the crusher
gape
95
in the principle of flotation what do you call the reagents that are used to create vigorous effervescence or repellant bubbles in the slurry
frothers
96
In reflected light a silky appearance which results from the presence of many inclusions arranged parallel to ask Christallographic direction
chatoyancy
97
A phenomenon when a mineral emits visible light when heated to a low temperature below that of red heat is called
thermoluminescence
98
It is the backbone of the ceramic industry
clay
99
The mesh number of the screen is the
no. of opening per linear inch
100
A vein was located by three drill holes A, B, and C. B is 600 M N 20o E of A; both B and A are vertical drill holes and intersected the vein at depths of 900 M and 300 M respectively. C, an inclined drill hole located N 80o E and 440 M from A, intersected the vein at an inclination of 50o to the N 30o E at a length of 460 M. What is the strike of the vein
N 700 W