Diagnostic Test - Mining Engineering III

Environmental Compliance Certificate

It is a document issued by the DENR Secretary or the DENR Executive Director certifying that a proposed project will not cause significant negative environmental impacts and that the proponent has complied with all the requirements of the Environmental Impact Statement system and has committed to implement its approved environmental management plan.

Permanent Authority to Construct and Operate

Environmental Clearance

Environmental Compliance Certificate

None of these

olivine

According to the Bowen's reaction series, which mineral crystallizes first?

quartz

pyroxene

amphibole

olivine

bornite

Which of the following minerals is also referred to as "peacock ore?"

luzonite

enargite

bornite

azurite

gape

What do you call the width of the receiving opening of a jaw crusher?

toggle

gape

set

pivot

A solution containing substantial amount of desired metal values.

barren solution

lixiviant

pregnant solution

solute

metal extraction

All of the following terms are synonymous with mineral processing, except one.

mineral beneficiation

ore dressing

metal extraction

none of the above

contact metasomatic deposit

What kind of deposit is found in Thanksgiving Mine?

porphyry deposit

contact metasomatic deposit

sedimentary-hosted deposit

VMS deposit

nquartation

This refers to the process of adding more silver to the bead to make parting easier.

salting

cupellation

inquartation

none of these

FCC

What is the crystal structure of austenite?

FCC

BCC

HCP

BCT

wolframite

Which of the following is a tungsten mineral?

ilmenite

wolframite

rutile

petalite

zinc

Spelter is the impure form of which metal when smelted?

iron

copper

zinc

tin

29.166 mg

What is an assay ton equivalent to?

29.166 lbs

29.166 tons

29.166 g

29.166 mg

caprock

In the petroleum industry, what do they call an impermeable formation that may trap oil, gas or water and preventing it from migrating beyond its reservoir or to the surface?

aquitard

aquifuge

aquiclude

caprock

iron

Which of these most common elements accounts for 5% by weight of the Earth’s crust?

silicon

aluminum

iron

oxygen

grinding media

This refers loose crushing bodies that are used to induce particle breakage in grinding, and can be either balls, rods, or the particles themselves are used.

crushing media

grinding media

mill charge

none of the above

coagulation

T
This refers to the process of altering the stability of the suspended colloidal solids to allow them to adhere to one another

coagulation

flocculation

stabilization

conditioning

scavenging flotation

In flotation, it refers to the process of recovering as much of the still remaining minerals in the slurry after the same has passed through bulk flotation before the slurry is pumped to the tailings ponds.

differential flotation

roughing flotation

scavenging flotation

cleaning flotation

diorite

Which of the following is not a volcanic rock?

rhyolite

andesite

diorite

basalt

secondary structures

What do you call this type of geologic structure that developed in rocks after their formation as a result of their subjection to external forces?

primary structures

secondary structures

compound structures

sedimentary structure

Blake type jaw crusher

Which of the following refers to a jaw crusher in which the upper end of the movable crushing surface is the fulcrum end while the lower end swings?

Dodge type jaw crusher

Blake type jaw crusher

universal type jaw crusher

single toggle jaw crusher

during the leaching process

When is activated carbon in contact with the cyanide solution in the CIL process?

before the leaching process

after the leaching process

during the leaching process

none of the above

hornfels

Which of the following is not a foliated metamorphic rock?

slate

phyllite

schist

hornfels

conglomerate

This is a clastic sedimentary rock that is composed of considerable consolidated deposits of gravel with variable amount of sand and mud in spaces between the larger grains.

breccia

conglomerate

arkose

marl

converting

The process wherein air is blown through molten pig iron or matte where by sulfur and other impurities are removed from the melt.

smelting

converting

roasting

blowing

silver and gold

What is the main composition of doré?

gold and zinc

silver and copper

silver and gold

gold and copper

pyrite

Which of the following is not a copper sulfide mineral?

covellite

bornite

chalcopyrite

pyrite

attapulgite

 

Which of the following minerals is also used as filler in the manufacture of animal feeds?

smectite

attapulgite

bentonite

fuller's earth

jigging

This refers to the process of separating particles of different densities, sizes, and shapes by introducing them on a perforated surface through which water flows in alternating strokes of pulsion and suction.

shaking

jigging

tabling

agitation

inverted frustum of a cone

What is the form of the stationary crushing surface of a gyratory crusher?

inverted frustum of a cone

frustum of a cone

cylindrical and horizontal

cylindrical and vertical

anode copper

The end product of PASAR smelting process that goes to the refinery. 

blister copper

black copper

anode copper

cathode copper

4MO.3SiO2

Which of the following is a sesquisilicate?

2MO.SiO2

2MO.3SiO2

4MO.SiO2

4MO.3SiO2

galena

Which of the following is an economic mineral of lead?

chalcopyrite

pyrite

galena

sphalerite

along the slopes below a lode deposit

Which of the following correctly describes the location where eluvial placer deposits form?

at different places along a river or stream's course

along the slopes below a lode deposit

along the beaches

at the site of primary mineralization

porosity

Which of the following physical characteristics reflect the rock’s capacity to absorb water?

fluidity

porosity

permeability

moisture

Which of the following rocks does not belong to the group?

diabase

amphibolite

dacite

syenite

carbon

Which of the following is the main impurity in pig iron?

chromium

nickel

carbon

calcium

cassiterite

Which of the following is the chief ore of tin?

hematite

cassiterite

pyrolusite

wolframite

Which of the following refers to geological formations formed from groundwater within underground caverns?

stalactite

stalagmite

speleothem

calcareous cave

Cyprus type VMS

These volcanogenic massive sulfide deposits are associated with rocks mafic to ultramafic in composition.

Cyprus type VMS

Besshi type VMS

Kuroko type VMS

all of the above

enriched zone

In supergene sulfide enrichment, this refers to the zone where secondary ore minerals concentrated with economically valuable ore minerals are accumulated.

enriched zone

leached zone

oxidized zone

primary zone

savings in freight

Which of the following pertains to the economic benefits of mineral processing?

savings in mining cost

savings in milling cost

savings in freight

savings in manpower

lead button

In the fire assaying of gold, what is the desired product after fusion?

inquart

matte

lead button

doré

quartz

Which of the following minerals exhibit conchoidal fracture?

biotite

quartz

chrysotile

kyanite

partial combustion of coke

What occurs during the air blast in an iron blast furnace?

partial oxidation of iron

complete oxidation of iron

partial combustion of coke

complete combustion of coke

angular unconformity

Which of these main types of unconformity is defined by the younger strata overlying an erosional surface on tilted or folded layer?

nonconformity

angular unconformity

paraconformity

disconformity

Quaternary

The present time belongs in which period of geologic time?

Pleistocene

Holocene

Quaternary

Cenozoic

RA 6969

Which Republic Act is otherwise known as the “Toxic Substances, Hazardous and Nuclear Waste Control Act of 1990?"

RA 6969

RA 9275

RA 7942

RA 8371

monocline

This is the simplest type of fold where the rock layers are bent only a little.

syncline

anticline

monocline

dome

lixiviant

This refers to chemicals that are used in hydrometallurgy to extract elements from its ore.

solvent

lixiviant

leachate

all of the above

opal

Which of these is classified as a mineraloid?

opal

halite

sylvite

citrine

xanthates

Which chemicals are commonly used as flotation collectors?

phosphates

xanthates

thiols

nitrates

flocculant

Which of these chemicals causes colloids and other suspended particles in liquids to aggregate and settle quickly to improve the sedimentation or filterability of small particles?

agglomerant

flocculant

dispersant

precipitant

Kick's Law

This law of comminution states that the work input is proportional to the reduction of the diameters of the particles.

Bond's Law

Rittinger's Law

Kick's Law

Stokes' Law

basalt

Which of the following is not an ultramafic rock?

harzburgite

basalt

wehrlite

dunite

flash smelting

What process does PASAR use in smelting copper concentrates?

flash smelting

Bessemer process

open hearth smelting

none of these

Bessemer process

Which of the following processes is done for converting pig iron?

Furan process

Durvile process

Bessemer process

Merrill-Crowe process

converting

The process wherein air is blown through molten pig iron or matte where by sulfur and other impurities are removed from the melt

blowing

roasting

converting

smelting

reforestation

It is a term used to define the natural or intentional restocking of existing forests ad woodlands that have been depleted.

forestation

reforestation

rehabilitation

restoration

copper and zinc

Which two metals are used to form brass?

copper and zinc

copper and tin

copper and nickel

copper and iron

Ore Transport Permit

This referred to the permit that may be granted to a contractor, accredited dealer, retainer, processor and other permit holder to transport minerals/mineral products.

Mineral Processing Permit

Mineral Processing License

Ore Transport Permit

Freight on Board

silica

Which of the following is an acidic flux?

sodium carbonate

potassium carbonate

silica

litharge

A ball mill in close circuit with a hydrocyclone is fed at a rate of 300 DMT per hour. The percentages of solids by weight of the cyclone feed, overflow, and underflow are 60%, 40% and 75% respectively. Determine the circulating load ratio.

2

2.5

3

3.5

What is the hardest phase of steel?

ferrite

austenite

martensite

cementite

What type of deposit is being mined by Cagdianao Mining Corporation at its mine in Dinagat, Surigao del Norte?

stratiform chromite deposits

magmatic nickel sulfides

nickel laterite

none of the above

reducing agent

In fire assaying, flour acts as what type of substance?

basic flux

reducing agent

oxidizing agent

none of the above

contact angle

In flotation, this refers to the angle between the surface of a mineral and the wall of an air bubble on the surface.

angle of nip

contact angle

collection angle

attachment angle

enargite

Which of these copper bearing minerals has the lowest copper percentage when pure?

chalcocite

enargite

bornite

azurite

tectosilicate

This subclass of silicate consists of frameworks of silica tetrahedra.

phyllosilicate

tectosilicate

inosilicate

sorosilicate

105.2 DMTPD

A certain concentrator is processing 0.30% copper ore at 42,000 DMTPD producing copper concentrate and tailings assaying 28.5% Cu. And 0.05% Cu respectively. Determine the DMT copper produced per day.

100 DMTPD

105.2 DMTPD

115.6 DMPTD

110.3 DMTPD

smelting

This refers to the reduction of iron oxides into metallic iron using carbon monoxide formed from the partial combustion of carbon.

converting

roasting

smelting

calcining

Biological Oxygen Demand

Which of these is not a significant parameter to be considered for monitoring wastewater from mineral ore processing plants in the mining industry?

Total Suspended Solids

heavy metals

Arsenic

Biological Oxygen Demand

semi-autogenous mill

A grinding mill which utilizes some steel balls plus the large particles of the ore to effect grinding of the finer ones. 

autogenous mill

semi-autogenous mill

ball mill

rod mill

solid-liquid seperation

Which of the following is a beneficiation process?

smelting

solid-liquid seperation

casting

refining

fine materials

In the operation of high capacity hydrocyclones, the overflow product consist of which material classification?

concentrate

middlings

fine materials

coarse materials

Hall-Héroult process

Which of the following processes is used to extract aluminum from alumina?

Merrill-Crowe process

Bessemer process

Hall-Héroult process

Frasch process

Philippine Clean Water Act of 2004

What is Republic Act no. 9275 otherwise known as?

Philippine Mining Act of 1995

Philippine Clean Water Act of 2004

Toxic Substances and Hazardous and Nuclear Wastes Control Act of 1990

Philippine Clean Air Act of 1999

cone crusher

Which of the following is commonly used for secondary and tertiary crushing?

impact crusher

cone crusher

jaw crusher

gyratory crusher

Special Waste

In the IRR of the Ecological Solid Waste Management Act, what is referred to as household hazardous wastes such as paints, thinners, household batteries, lead-acid batteries, spray canisters, and the likes?

Yard Waste

Special Waste

Bulky Waste

White Goods

sapphire

Which of these is not a cryptocrystalline variety of quartz?

onyx

sapphire

chert

jasper

anticline

Which of the following geologic formations refers to sedimentary rock masses that are bended or folded upwards?

basin

monocline

anticline

syncline

sulfides

What class of minerals oxidize causing the formation acid mine drainage?

sulfides

carbonates

oxides

silicates

sills

These are tabular plutons that are parallel to the bedding or schistosity of the adjacent rocks.

sills

dikes

lopoliths

laccoliths

acid flux

In fire assaying, which of these is not a property of litharge?

sulfurizing agent

oxidizing flux

acid flux

basic flux

troposphere

Which layer of the atmosphere is closest to the Earth's surface?

mesosphere

ionosphere

troposphere

stratosphere

metal sulfides

What is the main composition of matte?

metal arsenides

metal oxides

metal sulfides

metal antimonides

Construction and maintenance of National roads

One of the mandatory requirements of the New Mining Law is for the mining proponents to develop mining communities, science and technology. Which of the following is not a credited activity for development?

Development and maintenance of community housing projects for mine employees and members

Establishment and maintenance of communications, waterworks, sewerage and electric power

Establishment and maintenance of community schools, hospitals, churches and recreational

Construction and maintenance of National roads

electrorefining

What is a common type of electrometallurgy process used in the purification of metals by dissolving an impure metallic anode and produce a high purity cathode?

electroforming

electrowinning

electroplating

electrorefining

pyrolusite

What is the most important manganese ore?

magnetite

magnesite

pyrolusite

anatase

NaCN

What is commonly used in the leaching of gold?

NaHCO3

NaCN

NaCl

activated carbon

partial fusion

In sintering, what occurs on the surfaces of the fines as they are agglomerated into lumps by heating?

complete oxidation

partial oxidation

complete fusion

partial fusion

rhyolite

Which of the following is a felsic igneous rock?

diorite

andesite

rhyolite

gabbro

bulk flotation

Flotation process where all valuable minerals are floated from gangue for subsequent separation of each of the valuable minerals.

bulk flotation

differential flotation

selective flotation

reverse flotation

critical speed

In ball mill grinding, this pertains to the speed where centrifuging starts to occur.

maximum revolution

critical speed

mill surface area

none of the above

oxygen

The silicate degree is determined by the ratio of what constituent in the acid to the base components of the slag?

lime

silica

oxygen

silicon

Brgy. Liberty, Ormoc City, Leyte

Where is the only explored peat deposit in the Philippines?

Brgy. Caitican, Siquijor, Siquijor

Semirara Island, Caluya, Antique

Brgy. Biong, Gigmoto, Catanduanes

Brgy. Liberty, Ormoc City, Leyte

convergent boundaries

In what tectonic plate boundaries do porphyry deposits form?

transform boundaries

divergent boundaries

convergent boundaries

both divergent and convergent

propylitic alteration

This is a complex wall rock alteration generally characterized by chlorite, epidote, albite, and carbonates

potassic alteration

propylitic alteration

advanced argillic alteration

phyllic alteration

cupel

What is a small porous bowl made of bone ash in which gold and silver are recovered form a lead button during assaying?

furnace

crucible

mold

cupel

connate water

This refers to water that was trapped in sedimentary deposits during their formation.

meteoric water

connate water

magmatic water

none of these

roasting

This pyrometallurgical process heats the ore in the presence of excess air.

sintering

smelting

roasting

calcination