1
Q
Which of the following is an important characteristic of chemical grade chromite?
A). High SiO2
B). Low Cr : Fe ratio
C). Low SiO2
D). Low Al2O3
E). Low Cr2O3
A
C
2
Q
In a gyratory crusher, what do you call the moving or gyrating component?
A). Cone Head or mantle
B). Concaves
C). Main Shaft
D). Spindle
E). Frame
A
A
3
Q
3). The product of chemical grade chromite and is the base material in the manufacture of other value added chrome-based industrial product.
A). Nitric Acid
B). Hydrochloric Acid
C). Sulfuric Acid
D). Chromic Acid
E). Cyanic Acid
A
D
4
Q
4). Gold is widely used in which of the following industries?
A). Electronics/Microchips Industry
B). Rattan Industry
C). Furniture Industry
D). None of the above
E). All of the above
A
A
5
Q
5). A large mining community has a total population of 35,000 including mining employees, dependents, and other residents. If the communal rate is 40 liters per capita per day, what is the daily water demand of the mining community?
A). 1.1 MM. liters
B). 1.2 MM. liters
C). 1.3 MM. liters
D). 1.4 MM. liters
E). 1.5 MM. liters
A
D
6
Q
6). The process of precipitating the mercury to free the gold then later condensing the same to recover the mercury for possible reuse.
A). Precipitating
B). Retorting
C). Amalgamation
D). Cyanidation
E). Evaporation
A
B
7
Q
7). How much lead is available in 100 MT of ore containing 25% galena, 2% cinnabar, 6% sphalerite, and 3% moisture?
A). 200 DMT
B). 205 DMT
C). 210 DMT
D). 215 DMT
E). 220 DMT
A
C
8
Q
8). Which of the following geologic formations refer to sedimentary rock masses that are bended or folded downwards?
A). Anticline
B). Syncline
C). Folds
D). Faults
E). Joints
A
B
9
Q
9). Which of the following does not belong to the group?
A). Malachite
B). Luzonite
C). Chalcopyrite
D). Bornite
E). Enargite
A
A
10
Q
10). Which of the following physical properties of rocks where they break along approximately parallel surfaces?
A). Foliation
B). Bedding
C). Striation
D). Fragmentation
E). None of the above
A
A
11
Q
11). Which of the following crushing equipment is fitted with a cone head and mantle?
A). Cone Crusher
B). Jaw Crusher
C). Gyratory Crusher
D). Hydrocone
E). Ball Mill
A
C
12
Q
12). Which of the following is an economic mineral of iron?
A). Hematite
B). Pyrite
C). Magnetite
D). All of these
E). None of these
A
D
13
Q
In the production of Chemical grade chromite concentrate, which of the following must be kept as low as possible?
A). SiO2
B). Cr:Fe ratio
C). Al2O3
D). Cr2O3
E). FeS2
A
A
14
Q
Economic mineral of silica.
A). Pyrite
B). Quartz
C). Clay
D). Sulfur
E). Bornite
A
B
15
Q
In a conventional belt conveyor arrangement, drive motors are often manufactured at high rpm. This is translated to a speed option for mechanical belt conveyance by what type of equipment?
A). Idler
B). Gear Box
C). Clutch
D). Sprocket
E). Segment
A
B
16
Q
The major cause of large earthquakes.
A). Tectonic
B). Diastropism
C). Orogenesis
D). Continental
E). None of the Above
A
A
17
Q
Which of the following mineral is metallic?
A). Gypsum
B). Feldspar
C). Barite
D). Attapulgite
E). Hematite
A
E
18
Q
In laboratory test of effluent samples, ferrous sulfates is precipitated into ferric hydroxide after hydrolysis. The resulting reaction also produces H2SO4. Once H2SO4 is made to react with lime CaO it produces the following product.
A). No reaction
B). All of these
C). Ca2SO3 + 2H2O + 02
D). CaSO4 + H2O
E). CaS + 2H2O
A
D
19
Q
In assaying, which of the following is an active and readily fusible acid flux often used as a cover for fusion in crucibles of furnace.
A). Lead
B). Litharge
C). Borax
D). Gypsum
E). Silica
A
C
20
Q
Andesite is what form of rock?
A). Mafic
B). Acidic
C). Ultramafic
D). Topaz
E). Corundum
A
A
21
Q
In the MOH’s Scale of Hardness, which of the following exhibits a hardness of 9?
A). Orthoclase
B). Quartz
C). Apatite
D). Topaz
E). Corundum
A
E
22
Q
Heritage resources operates a chromite beneficiation plant.
Homonhon 250 WMT @ 15% Cr2O3, 11% FeO, 3% H2O
Sta. Barbara 200 WMT @ 18% Cr2O3, 15% FeO, 6% H2O
Llorente 300 WMT @ 10% Cr2O3, 8% FeO, 5% H2O
What is the average CR:Fe ratio of the blended ore feed to the Heritage beneficiation plant?
A). 1.2 : 1
B). 1 : 1
C). 1.1 : 1
D). 0.5 : 1
E). 2 : 1
A
C
23
Q
Which of the following mineral exhibits a perfect uni-directional cleavage?
A). Clay
B). Biotite
C). Cuprite
D). Calcite
E). Quartz
A
E
24
Q
In fire assaying, the beads sometimes contain very little silver to part and therefore it is necessary to alloy it with more silver. What do you call this process?
A). Inquartation
B). Cupellation
C). Salting
D). Fusion
E). Dissolution
A
A
25
What do you call the tabular pluton that are parallel to the bedding or schistosity of the adjacent rocks?
A). Dikes
B). Bysmaliths
C). Sills
D). Laccoliths
E). Loppoliths
C
26
In a conventional conveyor belt arrangement, what do you call the roller where the loaded belt passes?
A). Return rollers
B). Belt guide rollers
C). Carrier rollers
D). Scraper rollers
E). None of the above
C
27
Which of the following geologic formation is formed when large sedimentary rocks are folded due to intrusions from below or under the said formation?
A). Anticline
B). Wide wide plain
C). Syncline
D). High relief
E). Karst formation
A
28
A plutonic rock that is more than 40 square miles in surface exposure is called ____________.
A). Batholith
B). Dike
C). Horse
D). Gossan
E). Streak
A
29
What do you call those mineral deposits that were formed by water action that brought the minerals from a higher source, carried downstream and deposited the same in a favorable space along the sides of creeks or rivers?
A). Erogen deposits
B). Lode deposits
C). Placer deposits
D). Metamorphic deposits
E). Supergene deposits
C
30
What is the product when the metallurgical chromite is smelted?
A). Chromic salts
B). None of these
C). Ferrosilicon
D). Ferrochrome
E). Ferromanganese
D
31
Which of the following refers to that portion of MRF in the amount of not less than PhP50,000.00 that will be used to cover cost of maintenance per diem, transportation, travel expenses, cost of lab analysis, supplies and materials, services and consulting that may be incurred by MMT.
A). Monitoring Trust Fund
B). Mine Rehabilitation Fund
C). Environmental Guarantee Fund
D). Mine Environmental Fund
E). None of these
A
32
What is the hardness of Topaz in MOH's Scale of Hardness?
A). 6
B). 7
C). 8
D). 9
E). 10
C
33
Which of the following refers to the water that is trapped during the formation of sedimentary deposits?
A). Connate water
B). Magmatic water
C). Igneous water
D). Meteoric water
E). Mineral water
A
34
Which of the following refers to the process of reducing rocks and ore minerals to certain desired size or sizes where optimum mineral liberation is attained?
A). Grinding
B). Comminution
C). Crushing
D). Blasting
E). None of these
B
35
Which of the following is the economic mineral of manganese in its friable form?
A). Mangalite
B). Sphalerite
C). Garnierite
D). Pyrolusite
E). Psilomelane
D
36
Which of the following grinding equipment uses various steel materials and hard rock of assorted sizes and shapes such as pre cut drill steels or rods, scrap iron, etc. as grinding medium.
A). Ball Mill
B). Sag Mill
C). Multi rod mill
D). Autogenous mill
E). Pebble mill
E
37
What do you call the process of taking a small portion of a body as a representative of a larger volume and is done on a regular and mechanical manner as possible.
A). Dilute
B). Salting
C). Ore dressing
D). Comminution
E). Sampling
E
38
Which of the following gold recovery processes refers to the dissolution of gold in mercury?
A). Amalgamation
B). Cyanidation
C). Cupellation
D). Inquartation
E). Sublimation
A
39
What is the equivalent of diamond in MOH's Scale of Hardness?
A). 6
B). 7
C). 8
D). 9
E). 10
E
40
The DENR and MGB are the principal government agency responsible for the conservative management and beneficiation of resources utilized by the state since 1982 and exercises which of the following authority on the same among others.
A). To promulgate rules.
B). To enforce applicable and related laws
C). To exercise such other authority
D). To enter into mineral agreements for and in behalf of the state.
E). All of these
E
41
Which of the following is commonly used as a glazing agent of tiles and other ceramic products?
A). Calcite
B). Attapulgite Clay
C). Bentonite
D). Feldspar
E). Gypsum
D
42
Which of the following refers to the process of recovering economic metals like Cu and Au from low grade ores by treating them with chemicals with controlled PH to dissolve the subject metals and later precipitate the same with other agents.
A). Electrolysis
B). Heavy Media Separation
C). Leaching
D). Gravity Concentration
E). Filtration
C
43
In structural geology, rivers and creeks are often considered as surface impressions of which of the following geologic structures?
A). Folds
B). Faults
C). Fractures
D). Joints
E). None of these
B
44
It is a geophysical exploration technique best applicable to shallow porphyry copper deposits.
A). Induced Polarization
B). Gravity Survey
C). Soil Sampling Survey
D). Seismic Survey
E). Magnetic Survey
A
45
The formation of minerals that may involve dynamic, static or thermal state which is brought about by the heat of intrusion.
A). Sedimentation
B). Magmatic intrusion
C). Metamorphism
D). Segregation
E). Dissemination
C
46
Which of the following is not a manganese ore?
A). Garnierite
B). Luzonite
C). Enargite
D). Galena
E). All of these
E
47
In interpreting geologic maps, what do you call geologic structures that are characterized by intersecting topographic controls.
A). Underhang
B). Overhang
C). Steep slope
D). Valley
E). River
B
48
One of the provisions of the new mineral law is for mining companies or proponents to develop mining communities, science and technology and the establishment of livelihood. Which of the following is not a credited activity under the said program.
A). Construction of community schools, hospitals, churches and recreational facilities.
B). Development and maintenance of rural infrastructure, community water, sewerage and electric power.
C). All of these
D). Establishment and maintenance of community housing projects.
E). Construction and maintenance of community roads, bridges and wharves.
E
49
What portion of a reserve base can be economical, exploited or profitable at the time of determination.
A). Indicated reserve
B). Inferred reserve
C). All of these
D). Mineable reserve
E). Geologic reserve
D
50
Under R.A. 7942 and its IRR which of the following is not required in an ECC that is released by the DENR Secretary for Mineral Agreements.
A). MMT Fund
B). Risk Assessment
C). Clearance from and registration with the DTI
D). EPEP
E). MRFC Fund
C
51
In the principle of flotation, what do you call the reagent that are used to create vigorous effervescence and repeller bubbles in the skin.
A). Depressant
B). Oxides
C). Sulfides
D). Frothers
E). An-ions
D
52
Which of the following physical characteristics reflects the rocks capability to absorb water.
A). Tenacity
B). Porosity
C). Malleability
D). Ductility
E). Elasticity
B
53
Philex Mining treated the following tonnage in its Padcal Copper Mines:
First 10000 DMT @ 0.57% Cu
Second 9000 DMT @ 0.50% Cu
Third 11000 DMT @ 0.60% Cu
What is the total product output of the day?
A). 30,000 @ 0.54% Cu
B). 30,000 @ 0.52% Cu
C). 30,000 @ 0.56% Cu
D). 30,000 @ 0.53% Cu
E). 30,000 @ 0.58% Cu
C
54
In a conventional screw classifier, what do you call the overflow product?
A). Coarse
B). Slimes
C). Tailings
D). Waste
E). Middlings
B
55
In mapping, what is the general working scale of army map?
A). 1:20,000 m.
B). 1:30,000 m.
C). 1:40,000 m.
D). 1:50,000 m.
E). 1:60,000 m.
D
56
Which of the following is an economic mineral source of mercury?
A). Sphalerite
B). Calcite
C). Enargite
D). Arsenopyrite
E). Cinnabar
E
57
Copper oxides cannot be recovered by flotation without first subjecting them to which of the following process.
A). Leaching
B). Cyanide
C). Sulfidization
D). Oxidation
E). Amalgamation
C
58
Which of the following is not a sulfide mineral?
A). Malachite
B). Chalcopyrite
C). Pyrite
D). Enargite
E). Bornite
A
59
Which of the following geological formation separate sedimentary rock masses that are bended or folded upwards?
A). Syncline
B). Anticline
C). Fault
D). Fracture
E). Disconformity
B
60
Portland cement is used in which of the following;
A). Excavations such as trenching and test pitting.
B). Construction works requiring high structural strength like multi storey building.
C). None of the Above
D). All of the above
B
61
Under R.A. 7942 and its IRR, environmental functions and mine safety shall be directly supervised by:
A). Environmental Engineer
B). Local Government
C). MEPEO Officer
D). Admin Officer
E). HRD Officer
C
62
In fire assaying, slags obtained in crucible assay that have high litharge but low silica, borax and other acids are usually called;
A). Acidic slags
B). Basic slags
C). Oxide slags
D). Sulfide slags
E). None of these
C
63
Which of the following is an economic mineral of sulfur?
A). Cuprite
B). Hematite
C). Magnetite
D). Pyrite
E). Cassiterite
D
64
Which of the following is the most effective and economic means of neutralizing acid mine drainage?
A). Flushing with water
B). Dilution
C). Precipitation
D). Lime Treatment
E). Distillation
D
65
What is a thrust fault.
A). The hangingwall has moved up relative to footwall.
B). The hangingwall has moved down relative to footwall
C). The hangingwall and footwall moved
D). The hangingwall is folded
E). The footwall rises
A
66
In fire assaying, the next procedure after obtaining DORE;
A). Roasting
B). Melting
C). Weighing
D). Parting
E). Hammering
C
67
Gossans are weathering derivatives of which minerals?
A). Oxides
B). Sulphides
C). Antimonides
D). Calcite
E). Chromites
B
68
Which of the following is not a copper mineral.
A). Chalcocite
B). Bornite
C). Chalcopyrite
D). Chrysocolla
E). Psilomelane
E
69
A daily feed to the copper mill is known to contain 15% Chalcopyrite of the total tonnage milled 10,000 WMT with 3% moisture. What is the percent copper (%Cu) in the mill head?
A). 3.2%
B). 4.2%
C). 5.2%
D). 6.2%
E). 7.2%
C
70
Which of the following type of chromite mineral is used to manufacture paint pigments colored green and yellow?
A). Refractory grade
B). Metallurgical grade
C). Chemical grade
D). None of These
E). All of these
C
71
One of the following factors influence and enhance acid generation.
A). Lime Treatment
B). Availability of water
C). None of these
D). All of These
E). Presence of limestone
B
72
Which of the following is the product of smelting iron ores with high charge of silica.
A). Ferrochrome
B). Ferrosilicon
C). Ferromanganese
D). Ferroalloys
E). None of these
B
73
Which of the following is the product of smelting iron ores with high charge of manganese?
A). Ferrochrome
B). Ferromanganese
C). Ferrosilicon
D). Ferroalloys
E). None of these
B
74
Which of the following can be scratched by a file?
A). All of these
B). Orthoclase
C). Apatite
D). Calcite
E). Fluorite
A
75
Which of the following is an iron mineral?
A). Hematite
B). Chalcocite
C). Covellite
D). Cerussite
E). Anglesite
A
76
Which of the following mineral is also used as a filter in the manufacture of animal feed and also deodorizes animal waste?
A). Cryolite
B). Attapulgite
C). Bentonite
D). Graphite
E). Calcite
B
77
Which of the following elements is strategic and beneficial in flash smelting process due to its contribution in reducing energy consumption in the furnace. This element produces heat during smelting.
A). Oxygen
B). Silver
C). Sulfur
D). Copper
E). Hydrogen
C
78
Hardness of Gypsum in Moh's Scale of Hardness.
A). 2
B). 3
C). 4
D). 5
E). 6
A
79
A Nordberg Jaw crusher has a rated capacity of 200TPH @ 100 % efficiency. The circulating load is 15%. How much ROM feed can it take at any one time?
A). 150 TPH
B). 160 TPH
C). 170 TPH
D). 180 TPH
E). 190 TPH
C
80
In the recovery of gold, the CCD process, what is the best and most economical precipitation agent of the Merryl Crowe Process from pregnant solution?
A). Zinc Dust
B). Cyanide
C). Nitric Acid
D). Aqua Regia
E). None of these
A
81
Which of the following is the best raw material for the production of rock aggregates for construction materials
A). Obsidian
B). Basalt
C). Quartz
D). Andesite
E). Clay
B
82
The size of steel ball charge in a regrind mill in principle is ;
A). Larger in size than in primary mill
B). Same in size than in primary mill
C). None of these
D). Smaller in size than in primary mill
E). Double in size than in primary mill
D
83
Which of the following is not a sulfide mineral?
A). Pyrite
B). Chromite
C). Chalcopyrite
D). Barite
E). Enargite
B
84
The principal mineral of Manganese
A). Cinnabar
B). Argentite
C). Pyrolusite
D). Ilmenite
E). Magnesite
E
85
In the operation of big capacity hydroclones in classifiers, which of the following is the overflow product from hydroclones?
A). Coarse materials
B). Waste materials
C). Middlings
D). Fine materials or slimes
E). None of these
D
86
The chromite concentrate contains; 48% chromite, 0.25% silica, 6% manganese, 18% chromic acid, 11% FeO and 0.01% sulfur. What is the CR:Fe ratio in a 5,000 MT with moisture is 8%.
A). 1.25 : 1
B). 1.75 : 1
C). 2.35 : 1
D). 2.0 : 1
E). 1.86 : 1
C
87
In fire assaying, what should be the condition of nitric acid solution before dropping in the bead to avoid breaking it into fine particles.
A). It should be mild
B). It should be low in concentration
C). It should be hot
D). None of these
E). All of these
B
88
What do you call the process of grinding wherein very small amount of grinding media is used.
A). Autogenous grinding
B). Semi-autogenous grinding
C). Close circuit grinding
D). Open circuit grinding
E). None of the above
B
89
In grinding, what do you call the ball mill rotation at which maximum grinding efficiency is attained.
A). Maximum speed
B). Minimum speed
C). Critical speed
D). High speed
E). None of the above
C
90
In a conventional belt conveyor arrangement, what do you call the pulley where the counterweight is usually connected?
A). Carrier pulley
B). Idler pulley
C). Sheave
D). Return rollers
E). Return pulley
B
91
The result of a process mutually agreed upon DENR key stakeholder and the proponent to ensure that the valid and relevant concern of the community stakeholder, including affected communities are fully considered
A). Social acceptability
B). Sustainability
C). None of these
D). All of these
E). Marketability
A
92
The main purpose of regrind ball mill;
A). To prevent overgrinding
B). Increase the grade of final concentrate by detaching gangue minerals.
C). None of these
D). All of these
B
93
The ECC is good for:
A). 25 years
B). 30 years
C). 35 years
D). 40 years
E). 50 years
E
94
Aside from limestone, manufacturing of cement also use:
A). Calcite
B). Gypsum
C). Chromium
D). None of these
E). All of these
B
95
Heating of gold initially has black color due uneven surface caused or difference in reflection of light.
A). Normalizing
B). Tempering
C). Hardening
D). Annealing
E). Hammering
D
96
In flotation, it refers to the process of recovering as much of still remaining valuable minerals in slurry.
A). Rougher flotation
B). Cleaner flotation
C). Differential flotation
D). None of these
E). Scavenging flotation
E
97
The screw like mechanism that elevates sand from the slimes thereby affecting separation in a classifier arrangement.
A). Tabling
B). Flight
C). Tailings
D). Middling
E). Heating
B
98
Metallurgical grade of chromite ore must be kept as high as possible by determining the:
A). SiO2 ratio
B). Cr : Fe ratio
C). None of these
D). Al2O3 ratio
E). MgO ratio
B
99
Refers to mineral deposits that were emplaced in their hosts through open space or fracture filling.
A). Aphanitic
B). Hypogene
C). Supergene
D). Epigenetic
E). None of the above
D
100
One of the economic uses of refractory grade chromite.
A). Iron works
B). Foundry molds
C). Metal plates
D). None of these
E). All of these
B
101
One of the uses of psilomelane.
A). Plastics
B). Frothers
C). Alloy
D). Batteries
E). None of these
D
102
The mine rehabilitation fund of PhP5,000,000.00 of the mining companies will be deposited in what place?
A). Bank nearest to the mine
B). Any bank at the owners discretion
C). In government depository bank
D). None of the above
E). All of the above
C
103
What is a screw classifier?
A). A filter machine
B). A mineral concentration
C). A dewatering machine
D). None of the above
E). All of these
C
104
In heap leaching of low grade copper oxides, the most common precipitation agent of copper;
A). Zinc
B). Silver
C). Iron
D). Sulfur
E). Carbon
A
105
What is used as separating solution for gold?
A). Water
B). Mercury
C). Cyanide
D). Nitric Acid
E). Hydrochloric acid
D
106
The rated capacity of the mill is 180 TPH at 90% rate capacity efficiency. The circulating load is 10%. What is the rate of feed in TPH?
A). 130 TPH
B). 135 TPH
C). 140 TPH
D). 145 TPH
E). 150 TPH
D
107
Equipment that is traditionally used in washing manufactured sand from crushing plant? This also separates washed sand from wastewater containing slimes.
A). Ball mill
B). Sand classifier
C). Crusher
D). Cyclone
E). Jig
B
108
Refers to the comprehensive and strategic environmental management plan to achieve the environmental management objectives, criteria and commitments including protection and rehabilitation of the disturbed environment during the exploration period.
A). Environmental Management Record (EMR)
B). Environmental Work Program (EWP)
C). Environmental Impact Statement (EIS)
D). Environmental Impact Assessment (EIA)
E). Environmental Compliance Certificate (ECC)
B
109
In metallurgical grade chromite, this should be kept as low as possible.
A). Al2O3
B). SiO2
C). None of these
D). FeO
E). MgO
B
110
Which of the following is not a sulfide mineral.
A). FeS2
B). Magnetite
C). Chalcocite
D). Bornite
E). Chalcopyrite
B
111
Which of the following is the main component of a drum or disc filter.
A). Suction Pump
B). Volute pump
C). Vacuum pump
D). All of these
E). None of these
C
112
What is the product of smelting metallurgical chromite ores at pre-determined Cr : Fe ratio?
A). Ferro-Silicon
B). Ferrochrome
C). Ferro manganese
D). None of the above
E). All of the above
B
113
The type of ore at Heritage Resources.
A). Ferro-Silicon
B). Ferrochrome
C). Ferro manganese
D). None of the above
E). All of the above
C
114
How much sulfur is in 1,000 MT of ore containing 25% Galena, 12% Chromite, 3% Malachite, 2% Hematite and 3% moisture.
A). 30.45 MT
B). 31.45 MT
C). 32.45 MT
D). 33.45 MT
E). 34.45 MT
C
115
Shows the detailed position, size and shape of physical features of an area.
A). Geographic map
B). Geologic Map
C). Topographic map
D). None of the above
E). All of the above
C
116
A mineral of the spinel group, crystals and pure form are rare, and it is usually massive; the only important ore mineral of Chromium.
A). Enargite
B). Diorite
C). Cuprite
D). Malachite
E). Chromite
E
117
Who approves the Environmental Compliance Certificate?
A). Provincial Governor
B). DENR Secretary
C). DENR Regional Executive Director
D). City Mayor
E). None of these
C
118
The following are the Mine Rehabilitation Fund Signatories.
A). Proponent and MGB Director
B). Proponent and Provincial Governor
C). Proponent and DENR Secretary
D). None of these
E). All of these
A
119
Heat treatment processes where the metal or alloy is heated to some pre-determined temperature and time and then cooled very slowly.
A). Hardening
B). Annealing
C). Tempering
D). Normalizing
E). Hammering
B
120
The product when metallurgical chromite is smelted.
A). Ferrosilicon
B). Ferromanganese
C). Ferrochrome
D). Ferro Alloy
E). Ferrous Oxide
C
121
Host rock or country rock for copper mineralization in the Philippines
A). Basalt
B). Andesite
C). Ryolite
D). Diorite
E). Quartz
D
122
In assaying if the weight of gold bead recovered is 2 grams, What is the grade assay of the ore if the sample is one (1) assay ton?
A). 1 gmt
B). 2 gmt
C). 1.5 gmt
D). 2.5 gmt
E). 3 gmt
B
123
Tailings pond of Heritage resources and its Homonhon Chromite mine when fully filled is dried then reclaimed and used for:
A). Paving of roadworks
B). Reclamation fill
C). Backfill and rehabilitation of mined out areas.
D). None of these
E). All of these
C
124
Reagent used in dissolving gold from finely ground ores through leaching.
A). Nitric Acid
B). Mercury
C). Hydrochloric acid
D). Cyanide
E). None of the above
D
125
The economic minerals for the manufacture of glass.
A). Chromite
B). Copper
C). Feldspar
D). Iron
E). None of these
C
126
Equipment used to vaporize mercury then later condensing the same back to its liquid form.
A). Extensometer
B). Retort
C). Ball mill
D). Beam balance
E). None of the above
B
127
Under RA 7942, how much fund shall a proponent deposit in a bank to be used to cover proponents of MMT.
A). PhP 40,000
B). PhP 100,000
C). PhP 500,000
D). PhP 50,000
E). PhP 5,000,000
D
128
Prospective zone of alteration of gold mineralization.
A). Quartz-Sericite-Calcite
B). Quartz Diorite
C). Ophiolite Zone
D). None of the above
E). All of the above
A
129
The number of products that a high capacity deck vibrating screen produce.
A). One product
B). Two products
C). Three products
D). Four products
E). Five products
D
130
Commonly used as drilling mud.
A). Pyrite
B). Attapulgite Clay
C). Barite
D). Quartz
E). Gypsum
C
131
Deposits that are found near or associated with volcanoes, sulfatants or similar geologic formations or occurrences.
A). Epithermal
B). Magmatic
C). Metasomatic
D). Epigenetic
E). Hypogene
A
132
The binding agent in the pelletizing of iron or chromite concentrates prior to smelting.
A). Silica
B). Feldspar
C). Bentonite
D). Pyrite
E). Calcite
C
133
Surface manifestation of a huge anticline.
A). Dome
B). Basin
C). Mountain
D). Caldera
E). Fault
A
134
In a classifier the one that represents fines or slimes.
A). Underflow
B). Overflow
C). Circulating load
D). None of these
E). All of these
B
135
Economic mineral of manganese.
A). Molybdenite
B). Pentlandite
C). Argentite
D). Psilomelane
E). None of the above
D
136
Used to manufacture special ceramics industrial products.
A). Metallurgical chromite
B). Chemical grade Chromite
C). Refractory grade Chromite
D). None of the above
E). All of the above
C
137
Equipment that removes small rocks that don’t need to be crushed.
A). Scraper
B). Scalper
C). Cleaner
D). None of these
E). All of these
B
138
In flotation, these are reagents that create vigorous effervescence or repellant bubbles in the slurry.
A). Frothers
B). Xanthates
C). Collectors
D). Lime
E). Depressor
A
139
Metallurgical chromite keep as high as possible its content.
A). SiO₂ ratio
B). Al₂O₃
C). Cr : Fe ratio
D). None of the above
E). All of the above
C
140
These are retardant of cement.
A). Silica
B). Calcite
C). Gypsum
D). None of the above
E). All of the above
C
141
Economic mineral of Mercury.
A). Molybdenite
B). Rhodomite
C). Cinnabar
D). Argentite
E). Scheelite
C
142
The cyanidation process where weaker cyanide solutions are introduced to fresh ores while stronger cyanide solutions are introduced to ores that have been earlier treated with cyanide.
A). Flotation
B). Cyanidation
C). Counter Current Decantation
D). None of these
E). All of these
C
143
Refers to the crystalline mode of the minerals. Three of the axes are of equal length and are symmetrically placed in one plane.
A). Isoclinal
B). Hexagonal
C). Clinical
D). None of the above
E). All of the above
B
144
Screening equipment that has two separate products.
A). Single Deck Screen
B). Double Deck Screen
C). Triple Deck Screen
D). None of these
E). All of these
A
145
Compact conveyor that feeds the crusher constantly using feeders.
A). Belt drives
B). Pulleys
C). Apron feeders
D). None of these
E). All of these
C
146
Common host rock of chromite mineralization.
A). Diorite
B). Basalt
C). Rhyolite
D). Peridotite
E). Quartz Diorite
D
147
In conveying system, the component that provides proper belt tensioning at all times to reduce or eliminate belt sliding and/or sagging thereby assuring belt speed.
A). Idler
B). Roller
C). Pulley
D). Apron feeders
E). Counterweight
E
148
What do you call a vibrating screen that is fitted with two screen cloths of various openings.
A). Single Deck Screen
B). Double Deck Screen
C). Triple Deck Screen
D). None of the above
E). All of the above
B
149
What do you call the process of recovering chromite using the gravity differentials between ore and gangue using water as separating medium.
A). Flotation
B). Gravity Concentration
C). Spiral Concentration
D). None of the above
E). All of the above
C
150
The mined-out areas of Heritage Resources were fully backfilled and rehabilitated by:
A). Pineapple plantation
B). Palm oil plantation
C). Mango plantation
D). All of the above
E). None of the above
D
151
The ore beneficiation process of Maricalum Mining.
A). Gravity Concentration
B). Conventional Copper Flotation
C). Cyanidation
D). None of the above
E). All of the above
B
152
In sample preparation for fire assaying, what do you call the process of dividing the crushed sample into two equal parts.
A). Sample Coring
B). Sample Dividing
C). Splitting
D). None of the above
E). All of the above
C
153
What do you call the grinding process where no grinding media is used but instead rock materials themselves serve as the grinding medium.
A). Close Circuit Grinding
B). Semi-autogenous grinding
C). Autogenous grinding
D). None of the above
E). All of the above
C
154
Components of chemical grade chromite ore.
A). SiO₂
B). Cr₂O₃ and low SiO₂
C). Cr₂O₃ and MgO
D). Al₂O₃
E). Fe₂O₃
B
155
What do you call the filter machine that is fitted with a number of disc-like elements wrapped in filter cloth and fitted with a vacuum pump that sucks the thickened pulp as the discs are immersed into the pulp.
A). Drum filters
B). Mineral filters
C). Disc filters
D). None of the above
E). All of the above
C
156
DENR regulates the pH range of mine effluent discharge with various receiving water bodies.
A). 6 to 8 pH
B). None of these
C). 5 to 9 pH
D). 1 to 7 pH
E). 2 to 6 pH
A
157
Important component of chemical grade chromite ore aside from Cr₂O₃ content.
A). 6 to 8 pH
B). None of these
C). 5 to 9 pH
D). 1 to 7 pH
E). 2 to 6 pH
C
158
The process of coating certain mine waste to prevent the oxidation of pyrite. The mechanism involves leaching the waste with a phosphate solution with hydrogen peroxide.
A). Micro Distillation
B). Micro Biology
C). Micro Capsulation
D). Micro Encapsulation
E). None of the above
D
159
Refers to the size reduction of rocks and minerals to desired sizes.
A). Crushing
B). Grinding
C). Comminution
D). Classifying
E). Blasting
C
160
The body created by MGB Regional Office that administers the Mine Rehabilitation Fund.
A). Multipartite Monitoring Team
B). Environmental Guarantee Fund Committee
C). Local Government Unit
D). None of the above
E). All of the above
B
161
In fire assaying for gold, this is the acid used to separate Ag from Au.
A). Hydrochloric Acid
B). Cyanide
C). Chromic Acid
D). Nitric Acid
E). Mercury
D
162
Under RA 7076 and its IRR, who among the following approves and issues the ECC of Small Scale Mining Permit.
A). MGB - Director
B). DENR - Secretary
C). DENR Regional Executive Director
D). None of the above
E). All of the above
C
163
In rock crushing operations, what do you call the equipment that continuously feeds the primary crusher with almost uniform load and segregates undersize materials that do not need to be crushed.
A). Apron feeders
B). Vibrating grizzly
C). Idlers
D). None of the above
E). All of the above
B
164
In conventional conveyor arrangement, what do you call the rollers that guide and carry the belt to the tail pulley.
A). Idlers
B). Carrier Rollers
C). Return rollers
D). None of the above
E). All of the above
C
165
Aside from its importance in world currency, gold is very widely used in which of the following industries.
A). Manufacturing Industry
B). Electronics Industry
C). Plastic Making Industry
D). None of the above
E). All of the above
B
166
Cyanide contained in the mill tailings is lost during impoundment due to which of the following processes.
A). Absorption in the facility
B). Precipitation
C). Evaporation when exposed to sunlight
D). None of the above
E). All of the above
C
167
This is the discontinuity that happens before mineralization occurs.
A). Pre-mineralization factors
B). Pre-mineralization fault
C). Pre-mineralization discontinuity
D). None of the above
E). All of the above
B
168
Refers to the process of predicting and assessing the likely environmental consequences and implementing projects and designing appropriate preventive, mitigating and enhancement measures.
A). Environmental Risk Assessment
B). Environmental Compliance Certificate
C). Environmental Impact Assessment
D). None of the above
E). All of the above
D
169
The mineral recovery process most applicable to sulfide ores particularly chalcopyrite.
A). Classification
B). Smelting
C). Flotation
D). None of the above
E). All of the above
C
170
Refers to the crystalline modes of minerals that have three perpendicular axes of equal length.
A). Tetragonal
B). Rhombohedral
C). Hexagonal
D). Isometric
E). Orthorhombic
D
171
Components of chemical grade chromite ores that must be kept as low as possible.
A). Al₂O₃
B). MgO
C). CaO
D). FeO
E). SiO₂
E
172
The minerals commonly used as drilling mud in diamond drilling.
A). Bentonite
B). Clay
C). Barite
D). Calcite
E). Andesite
C
173
In flotation, this refers to the process of immediately recovering as many of the economic minerals as possible in one flotation; the process is often applied to ores containing singular economic minerals.
A). Differential Flotation
B). Bulk Flotation
C). Scavenging Flotation
D). None of the above
E). All of the above
B
174
A concentration of naturally occurring solid, liquid or gaseous materials in or on the Earth's crust in such form and amount that economic extraction of a commodity from this concentration is currently or potentially possible.
A). Geologic Resource
B). Mineral Resource
C). Geologic Reserve
D). None of the above
E). Minable Reserve
A
175
Refers to the process of allowing the bulk of water from concentrate slurries to overflow through large circular settling tanks and at the same time increase the density of pulp to make filtration more efficient.
A). Thickening
B). Clarification
C). Sedimentation
D). None of the above
E). All of the above
A
176
Refers to the reagents that accelerate fine to coarse particles to form bigger particles making them easier for thickening and filtration.
A). Frothers
B). Reactants
C). Flocculants
D). None of the above
E). All of the above
C
177
In a Merryl Crowe Process of precipitating gold from pregnant solution, which of the following is the best precipitation agent?
A). Iron Dust
B). Zinc Dust
C). Silver Dust
D). None of the above
E). All of the above
B
178
Which of the following equipment is traditionally used for washing manufactured sand from the crushers and separating the sand materials from water usually containing washed slimes.
A). Screw Classifier
B). Sand Classifier
C). Cyclone
D). None of the above
E). All of the above
B
179
In grinding very hard Andesite and Diorite rocks containing copper minerals, which of the following is the most popular and economical grinding medium for optimum mineral liberation?
A). Steel rods
B). Basalt rocks
C). Steel balls
D). None of the above
E). All of the above
C
180
An economic mineral of lead.
A). Enargite
B). Covellite
C). Cuprite
D). Galena
E). Malachite
D
181
Reagent best used in dissolving gold from finely ground ores through leaching.
A). Hydrochloric Acid
B). Nitric Acid
C). Mercury
D). None of the above
E). Cyanide
E
182
In fire assaying, slags obtained in the crucible assay sometimes have high litharge but low in silica, borax and other acids.
A). Basic Slags
B). Acidic Slags
C). Oxide Slags
D). None of the above
E). All of the above
C
183
The revised implementing rules on the Environmental Impact Statement System (EIS).
A). DAO 41, Series of 2001
B). DAO 41, Series of 2000
C). DAO 51, Series of 2001
D). DAO 51, Series of 2000
E). DAO 61, Series of 2000
D
184
The formation of minerals may involve dynamic, static or thermal processes brought about by the heat of intrusions — what do you call this process?
A). Metasomatism
B). Metamorphism
C). Magmatism
D). None of the above
E). Metabolism
B
185
Refers to that portion of the Mine Rehabilitation Fund in the amount not less than PhP 50,000 that will be used to cover maintenance, communication services and consulting that may be incurred by the Multipartite Monitoring Team.
A). EGF
B). CLRF
C). MTF
D). None of the above
E). All of the above
C
186
In tailings thickener installations, the equipment that pumps the resulting high-density pulp to the tailings pond.
A). Volute pump
B). Sump pump
C). Suction pump
D). Vacuum pump
E). None of the above
A
187
Minerals used as coloring of green bottles.
A). Pyrite
B). Chromite
C). Feldspar
D). Quartz
E). None of the above
B
188
The product of dissolving gold in mercury.
A). DORE
B). Amalgam
C). Bullion
D). None of the above
E). All of the above
B
189
The best used as a primary grinding mill.
A). Pebble mill
B). Semi-autogenous mill
C). Autogenous mill
D). Rod mill
E). None of the above
D
190
When a huge rockmass is faulted, what do you call the rockmass that is downthrown.
A). Fold
B). Fault
C). Graben
D). N 'Echelon Fault
E). None of the above
C
191
Portion of the reserve that can be economically extracted or produced at the time of determination.
A). Resource
B). Mineable reserve
C). Inferred resource
D). Geologic Resource
E). None of the above
B
192
In jaw crusher installation, what do you call that main component that acts as counterweight to allow constant rotation, momentum of drive pulleys and provide sustained weight impact to the movable jaw considering the load of the crushing.
A). Flywheel
B). Mantle
C). Shaft
D). None of the above
E). Jaw
A
193
Mineral that is produced by Benguet Corporation at its Coto Mines in Masinloc Zambales.
A). Metallurgical Chromite
B). Refractory Chromite
C). Chemical Grade Chromite
D). None of the above
E). All of the above
B
194
The process of further reducing crushed rocks to specified granulation sizes so that most of the economic minerals are liberated, making them amenable to beneficiation processes such as flotation, gravity concentration, cyanidation, etc.
A). Grinding
B). Jigging
C). Attritioning
D). None of the above
E). Crushing
C
195
Refers to the kind of mica that is colored white and with a composition of hydrous potassium aluminum silicates.
A). Calcite
B). Gypsum
C). Dolomite
D). None of the above
E). All of the above
C
196
In fire assaying, the next procedure after obtaining the "DORE".
A). Parting
B). Inquartation
C). Annealing
D). Cupellation
E). None of the above
B
197
Heritage Resources Corporation concentrate consists of 48% Chromite, 0.25% Silica, 6% MnO, 18% Iron Oxide, 11% Alumina, and 0.03% Sulfur. What is the Cr : Fe ratio in the 5,000 MT concentrate if the moisture is 8%?
A). 1.20 : 1
B). 1.35 : 1
C). 1.65 : 1
D). 1.85 : 1
E). 2.00 : 1
B
198
Mineral hardness represented by a thumb nail.
A). 1
B). 1.5
C). 2
D). 2.5
E). 3.0
D
199
A geologic formation referring to a large volcanic depression.
A). Fault
B). Caldera
C). Syncline
D). Basin
E). Dome
B
200
The most important characteristics of a metallurgical grade chromite.
A). High SiO₂
B). High Cr : Fe ratio
C). High Al₂O₃ D) None of the Above E) All of the Above
B
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