USEP MINING III second mockboards

crest

The line of maximum curvature of the fold is called:

crest

trough

plunge

hinge

Nicolas Steno

Who is known as the Father of Stratigraphy and also considered the Father of Geology?

Charles Lyell

James Hutton

Nicolas Steno

Johann Lehmann

750

What is the fineness of an 18-karat gold?

500

750

850

875

The process of returning mined land to a safe, stable, and usable condition in the future, once mining operations are complete.

Rehabilitation

Reclamation

Restoration

Reforestation

29.166 grams

1 assay ton is equivalent to how many grams?

29.166 grams

31.103 grams

28.350 grams

30.165 grams

Sulfur dioxide

During roasting, what gas is produced?

Carbon monoxide

Nitrogen dioxide

Hydrogen sulfide

Sulfur dioxide

Komatite

What is the extrusive equivalent of Peridotite?

Andesite

Rhyolite

Dacite

Komatite

An isolated hill rising from a plain

What is an Inselberg?

A flat-topped plateau in polar regions

An isolated hill rising from a plain

A large river delta formed after flash floods

A coastal sand dune in arid regions

Mine waste

Which of the following is not classified as a Solid Waste?

Commercial waste

Agricultural waste

Industrial waste

Mine waste

2,200 km

What is the thickness of the outer core?

1,200 km

2,200 km

2,500

2,800 km

Heating an ore in the absence of air at temperatures below its melting point to convert carbonates into oxides and release CO₂.

The pyrometallurgical process of calcination is best described as:

Heating an ore in the presence of excess air and oxygen to convert sulfides into metal oxides and remove volatile impurities present in the ore.

Heating an ore in the absence of air at temperatures below its melting point to convert carbonates into oxides and release CO₂.

Melting an ore completely to separate metallic and non-metallic components.

Treating an ore with aqueous solutions to selectively dissolve the desired metal.

Jade

Which of the following gemstones is composed of nephrite?

Garnet

Peridot

Tourmaline

Jade

Nebular Hypothesis

Which theory explains the formation of the Earth from a rotating cloud of gas and dust?

Big Bang Theory

Nebular Hypothesis

Plate Tectonics Theory

Continental Drift Theory

Fireclay

A cupel is a porous cylinder or inverted-cone frustum of refractory material with a cupped depression in the upper end for retaining the lead button. In modern practice, cupels are made of the following materials, EXCEPT for one that is less common:

Bone-ash

Bone-ash-cement mixture

Magnesia

Fireclay

Breccia

Which clastic sedimentary rock is composed of angular rock fragments cemented together, indicating little transport from its source?

Conglomerate

Arkose

Breccia

Greywacke

DAO No. 2021-19

Which of the following issuances updated the Water Quality Guidelines (WQG) and General Effluent Standards (GES) for specific parameters, including ammonia, boron, copper, fecal coliform, phosphate, and sulfate?

DAO 2016-08

DAO No. 2021-19

DAO 2000-81

DAO 2022-12

Class A

Which freshwater body classification requires conventional treatment to meet the standards as a source of water supply?

Class AA

Class A

Class B

Class SA

The diffusion of ore and gangue-forming substances from the surrounding country rocks into faults and other geological structures. This occurs when fluids or mineralizing solutions move horizontally through rock formations, depositing minerals along their path.

Lateral secretion

Liquation

Segregation

Assimilation

Blue

The color of slag depends on the various proportions of ferrous silicates. If Cobalt is present, what would likely be the color?

Yellow

Red

Gray

Blue

Argols

A reducing agent that consists of the crude potassium acid tartrate that is deposited in the process of making wine.

Flour

Niter

Argols

Borax

Cyprus type

A massive sulphide deposit associated with basic volcanics in ophiolites formed at oceanic or back-arc spreading ridges and are essentially cupriferous pyrite bodies.

Kuroko type

Oko type

Cyprus type

Besshi type

A horst is an uplifted block between normal faults, and a graben is a down-dropped block

Which statement correctly describes a horst and a graben?

A horst is a block that has dropped between normal faults, and a graben is an uplifted block.

A horst is an uplifted block between normal faults, and a graben is a down-dropped block.

A horst is a block that has been compressed, and a graben is a block that has been stretched, observed on a thrust fault.

A horst is a block that has tilted, and a graben is a block that has shifted, observed on reverse faults.

Crystallography

Which branch of mineralogy focuses on the internal structure, symmetry, and external shapes of crystals?

Physical Mineralogy

Crystallography

Optical Mineralogy

Descriptive Mineralogy

1.5 to 1

The ratio of oxygen in the acid to that in the base of a Sesquisilicate slag is?

0.5 to 1

1 to 1

1.5 to 1

2 to 1

84%

The mantle comprises what percentage of the Earth’s volume?

53%

65%

84%

92%

Dendritic

Which drainage pattern resembles a tree-like network, forming in regions with relatively uniform material where rivers branch freely?

Trellis

Dendritic

Radial

Parallel

Basaltic

A type of magma characterized by a low silica content of 45%-55%, low viscosity, and produces gentle eruption.

Rhylotic

Andesitic

Basaltic

Granitic

Frother

This flotation reagent when added to the pulp decreases the surface tension of water and increases the life of bubbles produced.

Collector

Activator

Frother

Depressant

Electrowinning

In CIP, after the loaded carbon is stripped of gold producing eluate, what is the next process in the cyanidation of gold to produce high-purity cathode?

Carbon adsoprtion

Electrowinning

Zinc cementation

Carbon reactivation

Mylonite

A fault rock type with a relatively fine grain size as compared to the host rock and resulting from crystal-plastic processes.

Mylonite

Schist

Marble

Phyllite

Cupola furnace

Which furnace is commonly used to melt cast iron for foundry operations by charging layers of metal, coke, and limestone?

Blast furnace

Cupola furnace

Induction furnace

Hearth furnace

Driving of lead

In the stages of cupellation, what comes after the opening of buttons?

Driving of lead

Removal from muffle

Charging of buttons

Finish of cupellation

Residual

Nickel laterites and bauxite are examples of ore deposits formed by which process:

Sedimentary

Residual

Metamorphism

Hydrothermal

Pipe

Many near surface, diamond-bearing kimberlites and lamproites occur as diatremes. What typical shape do they usually form?

Lens

Pipe

Bedded

Vein

Mesosphere

Which of the following is the coldest region in the Earth’s atmosphere?

Stratosphere

Mesosphere

Exosphere

Thermosphere

Juan de Fuca Plate

Which of the following is the smallest major tectonic plate?

Nazca Plate

Juan de Fuca Plate

Cocos Plate

Caribbean Plate

160

In the hardness of minerals, diamond is how many times harder than calcite?

7

70

16

160

Which of the following terms refers to solid impurities floating on the surface of molten low-melting metals or alloys?

Slag

Dross

Matte

Speiss

Collectors

Few minerals, like sulfur, are naturally hydrophobic, so they can be floated directly, but most minerals are hydrophilic and have to be made hydrophobic by adding selected surface-active chemicals called?

Frothers

Collectors

Depressants

Activators

These are igneous rocks containing 45%-55% silica.

Mafic

Felsic

Intermediate

Ultramafic

Indian

Which of the following is the third-largest ocean on Earth?

Atlantic

Southern

Arctic

Indian

dextral fault

A road is cut by a vertical dipping fault. As you walk along the road toward the fault, at the intersection of the fault and road, you have to turn to your right and walk some distance along the fault until you encounter the continuation of the road. What would you call the fault?

sinistral fault

oblique fault

dip-slip fault

dextral fault

Mesa

What is a flat-topped mountain or hill called common in arid or semi-arid regions?

Mesa

Butte

Plateau

Hillock

Throw

In crushing, the maximum amplitude of swing of the jaw is known as:

Gape

Set

Throw

Pivot

Brightening

In the completion of cupellation, when the last trace of lead has been removed from the bead, it becomes dull for a brief period after which it acquires a normal metallic luster. This change in luster is known as?

Blick

Brightening

Sprouting

Play of colors

Magnetite

Which of the following minerals is also known as the Black Sand?

Magnesite

Magnetite

Obsidian

Hematite

Depression

On a topographic map, closed contour lines indicate a feature whose interpretation depends on the change in elevation toward the center. If the elevation decreases toward the center, the feature is called a:

Hill

Depression

Plateau

Ridge

Quartz

According to Bowen’s Reaction Series, which of the following is formed closest to the surface at the lowest temperature and most resistant to weathering?

Quartz

Amphibole

Sodium Plagioclase

Olivine

Emerald

Which of the following gemstones is a Beryl mineral?

Ruby

Sapphire

Topaz

Emerald

Anticline

Which fold is characterized by an upward-arching shape, with the oldest rocks at the center and limbs dipping away from the fold axis?

Anticline

Syncline

Monocline

Overturned fold

Tetragonal

This crystal system has three mutually perpendicular axes. The two horizontal axes are of equal length, while the vertical axis is of different length and may be either shorter or longer than the other two.

Cubic

Orthorhombic

Tetragonal

Trigonal

Recovery ratio

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

Concentration ratio

Enrichment ratio

Recovery ratio

Concentration criterion

29:1

A copper mining operation produces 15,000 dry short tons per day of 1.2% copper grade which it sends to a concentrator, which in turn produces a 32% copper concentrate at a recovery of 91%. What is the concentration ratio?

28:1

29:1

30:1

31:1

Younger than the rocks or structures it cuts.

In stratigraphy, an intrusion that cuts across another geologic feature must be:

Same age as the rocks or structures it cuts.

Younger than the rocks or structures it cuts.

Older than the rocks or structures it cuts.

Formed simultaneously with the surrounding strata.

Transform

The San Andreas Fault in California is an example of which type of plate boundary?

Convergent

Divergent

Transform

Rift

Law of Superposition

In an undeformed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top. Which of Law of Stratigraphy is described?

Law of Cross-Cutting Relationships

Law of Original Horizontality

Law of Superposition

Law of Lateral Continuity

Roasting

The metallurgical process that involves heating the ore in the presence of excess air, leading to the oxidation of metal sulfides into metal oxides.

Smelting

Roasting

Calcination

Converting

Sprouting

The solidification of large beads starts at the surface. When the center of silver beads solidifies, the oxygen is sometimes expelled violently, spewing forth some of the interior silver and forming a cauliflower-like growth on the bead. This mechanism is known as?

Spitting

Sprouting

Shotting

Freezing

Oxidizing effect

In crucible assay, this is the effect of any substance that is the amount of lead prevented from being reduced by the total amount of that substance in the charge.

Reducing effect

Oxidizing effect

Sulfur effect

Metal effect

Filtration

What is the process of separating solids from liquid by means of a porous medium which retains the solid but allows the liquid to pass?

Drying

Thickening

Sedimentation

Filtration

Post-eruption hydrothermal activity

The formation of amygdules indicates:

Primary crystallization of magma

Post-eruption hydrothermal activity

Sedimentary layering

Metamorphic foliation

To act as a flux to remove impurities, producing slag

What is the purpose of adding limestone in the smelting of iron in a blast furnace?

To increase the temperature of the furnace by acting as fuel

To neutralize the acidity of the molten iron

To act as a flux to remove impurities, producing slag

To reduce the iron ore chemically to metallic iron

Triclinic

This crystal system has three unequal axes, all of which intersect at oblique angles. None of the axes are perpendicular to any other axis.

Trigonal

Monoclinic

Cubic

Triclinic

Gravity concentration

What is the cheapest way to separate gold in mineral processing?

Cyanidation

Amalgamation

Gravity concentration

Flotation

When the speed of the mill is more than the critical speed

When does centrifuging motion start to occur in ball mills?

When the speed of the mill is 30% more or less than the critical speed.

When the speed of the mill is less than the critical speed.

When the speed of the mill is more than the critical speed.

When the speed of the mill is equal to the critical speed.

Connate water

Water that is included within the interstitial pore spaces of sediment as it is deposited is referred to as formational water or commonly known as?

Meteoric water

Metamorphic water

Juvenile water

Connate water

Runruno Gold Mine

Which of the following mines is the first in the country that uses naturally occurring bacteria to liberate 95% content of gold from sulfide concentrates of refractory ore using BIOX Technology?

Didipio Mine

Runruno Gold Mine

Masbate Gold Project

Canatuan Mine

Mass extinction of dinosaurs

Which of the following major events occurred at the end of the Cretaceous Period?

First appearance of fish

Mass extinction of dinosaurs

First appearance of dinosaurs

The great oxygenation

Nankai Trough

The Philippine Sea Plate, the Amurian Plate, and the Okhotsk Plate meet at which of the following regions?

Mariana Trench

Nankai Trough

Mount Iraya

Manila Trench

Sintering

Which process fuses powder particles together by heating them just below their melting point?

Welding

Sintering

Smelting

Forging

888 degrees Celsius

What is the melting point of litharge?

820 degrees Celsius

855 degrees Celsius

888 degrees Celsius

900 degrees Celsius

Quartz

Which of the following minerals do not exhibit an isometric crystal system?

Gold

Copper

Diamond

Quartz

It is the angle formed between the edge of a conical heap of the material and the horizontal while it is at rest on a moving surface, like a conveyor belt.

In mineral processing, the angle of surcharge is considered when handling materials. What is the angle of surcharge?

A reIt is the maximum slope angle at which loose material remains stable without sliding on a stationary surface.

It is the angle formed between the edge of a conical heap of the material and the horizontal while it is at rest on a moving surface, like a conveyor belt.

It is the angle between the free-falling stream of particles and the vertical when discharged from a conveyor belt.

It is the angle of inclination at which material begins to slide back on a conveyor belt during upward transport.

Similar folds

Which type of folds are characterized by no increase in size upwards or downwards, maintaining a similar shape throughout, with individual beds thickening at the crest and thinning on the limbs?

Recumbent folds

Isoclinal folds

Concentric folds

Similar folds

Frother

Flotation uses various reagents to separate minerals based on surface-chemical properties. What type of flotation reagent is methyl isobutyl carbinol?

Frother

Collector

Modifier

Depressant

What is another name for black diamonds, typically found in Brazil and Central Africa?

Labradorite

Obsidian

Carbonado

Anthracite

21.6%

The Chromite ore feed to the mill of Heritage Resources was assayed to contain 46.5% chromite. What is the chromium content of the ore?

19.5%

20.6%

21.6%

22.6%

Yellow cake

The extraction of uranium from the ore produces a partially refined product with a uranium content of at least 65%. What is this called?

Radioactive cake

Yellow cake

Glowing cake

Black cake

5.5%

A daily feed to the copper mill is known to contain 16% Chalcopyrite of the total tonnage milled 15,000 WMT with 3% moisture. What is the percent copper (%Cu) in the mill head?

16.5%

5.5%

47.3%

8.2%

Bioleaching

A mineral processing technique that uses microorganisms to extract valuable metals from ores instead of traditional smelting or chemical methods such as bacteria and fungi for the recovery of gold, copper and nickel?

Bioremediation

Bioleaching

Biocyanidation

Bioextraction

Play of colors

When the cupellation of large beads approaches completion, oily-appearing drops of litharge can be seen to collect on the surface of the bead. These particles appear to move, and the movement becomes increasingly more rapid until just before the finish, when the molten litharge forms a thin film of variable thickness and creates interference colors. The rainbow color bands move swiftly over the surface of the button and give the illusion that the button is revolving about a shifting axis. What do you call this phenomenon?

Play of colors

Brightening

Flashing

Annealing

Black Metallurgy

The ferrous metallurgy is also known as?

Colored Metallurgy

Black Metallurgy

Red Metallurgy

Brown Metallurgy

Kamagon

A Dipterocarp forest is a forest dominated by trees of the dipterocarp species. Which of the following is not a dipterocarp tree?

Bagtikan

Almon

Mayapis

Kamagong

93%

A copper mine delivers 2,500 dry short tons of ore with a grade of 0.85% to the concentrator which in turn mills and processes it at a concentration ratio of 31 to 1 producing concentrate at a grade of 24.5%. What is the mill recovery?

83%

86%

89%

93%

Mammals

The Cenozoic Era is primarily known as the Age of:

Dinosaurs

Mammals

Fish

Trilobites

Class SB

Which of the following waterbody classifications is suitable for commercial propagation of shellfish and spawning areas of milkfish?

Class SA

Class SB

Class A

Class B

Challenger Deep

What is the deepest known point in Earth’s oceans?

Tonga Deep

Challenger Deep

Expedition Deep

Ocean Deep

Lignite

Which of the following is known as the brown coal?

Peat

Lignite

Bituminous

Sub-bituminous

Surfusion

In the final stage of cupellation, it is not necessary that the muffle temperature be increased at the finish to the actual melting point of the bead. What do you call this phenomenon that keeps the alloy in a molten state at a temperature somewhat below the melting point?

Fusion

Hardening

Surfusion

Scorification

Transform

This is a conservative plate boundary that is associated with horizontal sliding motion, frequent earthquakes, and no significant crust formation or destruction.

Divergent

Convergent

Transform

Subduction

Loess

Which sediment is mainly transported and deposited by wind?

Alluvium

Loess

Till

Moraine

Fe2O3

What is the formula of Hematite?

Fe3O4

Fe2O3

FeS2

FeO

Parting

After the removal of Lead by cupellation, the bead is cleaned, flattened and weighed. What is the next step that involves the dissolution of silver in acid?

Annealing

Parting

Liquefaction

Fusion

Antidune

Which structure forms in high-velocity flows, with wave-like patterns oriented opposite to the flow direction?

Ripple marks

Antidune

Sandwaves

Cross bedding

2,900 km

At approximately what depth below the Earth’s surface does the mantle end and the outer core begin?

2,500 km

2,700 km

2,900 km

3,200 km

25 grams

What is the desired weight of a lead button?

10 grams

25 grams

45 grams

60 grams

Matte

In scorification assay, what do you call the artificial sulfides of the heavy metals formed by the fusion of metals with elemental sulfur, the reduction of metal sulfates, or simply by melting sulfide minerals?

Speiss

Matte

Slag

Dore

Pentlandite

What is the principal ore of Nickel?

Garnierite

Niccolite

Pentlandite

Limonite

Georges Lemaitre

Who is credited with proposing the Big Bang theory of the universe?

Albert Einstein

Georges Lemaitre

Edwin Hubble

Fred Hoyle

Spillway

Which part of a tailings storage facility is designed to safely pass excess water during flood events to prevent overtopping?

Penstock

Spillway

Freeboard

Embankment