SET 2

Question 1

The process of mining any
near-surface deposit using a surface pit excavated using one or more horizontal
benches

Answer 1

Open-pit Mining

Question 2

A horizontal slice of an open pit which is mined
as a unit

Answer 2

Bench

Question 3

Collect sliding
material and stop downward movement of large
rocks

Answer 3

Safety (Catch) Benches

Question 4

Where unit operations
(drilling, blasting, loading, and hauling) are
performed

Answer 4

Working Benches

Question 5

Horizontal surface of the bench

Answer 5

Bench Floor

Question 6

Vertical surface of the bench

Answer 6

Bench Face

Question 7

The distance between the crest and the two
measured along the upper surface

Answer 7

Bench Width

Question 8

The horizontal projection of the bench face

Answer 8

Bank Width

Question 9

Vertical distance between upper and lower
bench surface

Answer 9

Bench Height

Question 10

Interior vertex formed by the intersection of the
bench face and bench floor

Answer 10

Toe

Question 11

Exterior vertex formed by the intersection of the
bench face and bench floor

Answer 11

Crest

Question 12

The average angle the face makes with the
horizontal

Answer 12

Face Angle (α)

Question 13

The angle measured from the bottom of the
bench toe to the top of the bench crest

Answer 13

Ultimate Pit Slope Angle

Question 14

A pile of broken material constructed along the
crest to form a “guard rail”

Answer 14

Safety Berm

Question 15

Added to pit walls to provide access between
benches and plant next to pit; 15% gradient

Answer 15

Haul Road

Question 16

In-pit water is collected and pumped out of the pit

Answer 16

Sump

Question 17

Nature of overburden where breakage not required

Answer 17

Unconsolidated

Question 18

Nature of overburden where breakage is required

Answer 18

Consolidated

Question 19

Type of drilling used for weak rocks

Answer 19

Auger

Question 20

Type of drilling used for intermediate rocks

Answer 20

Roller Bit

Question 21

Drilling type used for very hard rocks

Answer 21

Percussion

Question 22

Chemical used in blasting along with the loading of machine and firing of electricity

Answer 22

Ammonium nitrate fuel oil

Question 23

Most effective blast hole drilling pattern

Answer 23

Staggered

Question 24

It is the transport of run-of-mine (ROM) ore to the processing area and removes overburden and waste rocks from the mine site

Answer 24

Hauling

Question 25

Most common mine haulage system

Answer 25

Conventional truck haulage

Question 26

It involves restoring land affected by mining to a stable and productive state

Answer 26

Reclamation

Question 27

Marks the end of mining operations

Answer 27

Mine Closure

Question 28

World’s largest open-pit mine

Answer 28

Bingham Canyon Mine, USA

Question 29

2nd deepest open-pit mine in the world

Answer 29

Chuquicamata Copper Mine, Chile

Question 30

World’s largest Cu mine by production (Open Pit)

Answer 30

Escondida Copper Mine, Chile

Question 31

World’s largest open-pit gold mine where the secondary mineral is silver

Answer 31

Muruntau Gold Mine, Uzbekistan

Question 32

Largest Surface Mine in the Philippines

Answer 32

Carmen Copper Corporation Toledo City, Cebu

Question 33

Area that is dug out from a piece of land or the side of a mountain to get stone or minerals

Answer 33

Quarry

Question 34

Process of removing rock, sand, gravel, or other minerals from the ground to use them to produce materials for construction or other uses

Answer 34

Quarrying

Question 35

It refers to any common rock or other mineral substances” that “do not contain metal or metallic constituents and/or other valuable minerals in economically workable quantities.

Answer 35

Quarry Resources

Question 36

Issued to any Qualified Person by the Provincial Governor/City Mayor through the provincial/City Mining Regulatory Board for the extraction, removal, and disposition of quarry resources

Answer 36

Quarry Permit

Question 37

Largest quantity of mineral extracted by quarrying is used for construction

Answer 37

Aggregates

Question 38

Boring of a cylindrical hole into a rock for explosive insertion (shot hole)

Answer 38

Drilling

Question 39

Drilling for weak rocks

Answer 39

Auger

Question 40

Drilling for intermediate rocks

Answer 40

Roller-bit rotary

Question 41

Drilling for very hard rocks

Answer 41

Percussion

Question 42

The process of reducing a solid body, such as rock, to fragments by using an explosive

Answer 42

Blasting

Question 43

Blocks of rocks are broken loose from their natural outcrops by men using hand tools or special-purpose channeling machines

Answer 43

Excavation

Question 44

In large quarrying operations, these holes may be drilled by special machines known as hammer drills

Answer 44

Wedging

Question 45

A surface exploitation method used mainly for coal and other bedded deposits, which resemble open-pit mining; overburden is not transported to waste dump for disposal

Answer 45

Open Cast (Strip Mining)

Question 46

Involves exploiting surface resources; it's directly cast into nearby mined-out sections

Answer 46

Open Cast Mining

Question 47

Carried out on relatively flat terrain with flat-lying seams; mining cuts are made in straight, parallel panels, advancing across the property

Answer 47

Area Mining

Question 48

Important sub-method within contour mining; a method in which overburden removal and then coal extraction follows the outcrop

Answer 48

Haulback Mining

Question 49

Conducted in hilly or mountainous terrain, with cuts placed on the contours of the topography

Answer 49

Contour Mining

Question 50

Commonly practiced method of removing more than one seam of coal from a pit in a carefully sequenced series of steps the initial cut exposing the upper coal seam is removed

Answer 50

Multiple-seam Mining

Question 51

A method of open-cast mining in which the energy generated by blasting is utilized to move a portion of the overburden

Answer 51

Explosives Casting

Question 52

The very first and largest diamond mine to go into operation in the Soviet Union

Answer 52

Mirny Mine, Russia

Question 53

South Africa's largest producer of diamonds

Answer 53

Venetia Diamond Mine

Question 54

It exports saprolite and limonite ore; it is known for its nickel mining operations using open-cast methods

Answer 54

Rio Tuba Nickel Mining Corp.

Question 55

Version of strip mining that follows the contours of outcrops and hilly terrains

Answer 55

Contour Mining

Question 56

It is the extraction of mineral deposits lying near the surface of the earth by means of removing the overburden above the deposits in rows or strips

Answer 56

Contour Mining

Question 57

Recovering coal by a helical bit, boring into a coal seam at the base of a strata

Answer 57

Auger Mining

Question 58

One of the lowest cost mining techniques that uses a drag-bit rotary drill

Answer 58

Auger Mining

Question 59

Drilling parameter that is required in a poor ground with the use of hollow stem augers

Answer 59

Drill Casing

Question 60

It is an indication of cavities, fractures of permeable ground

Answer 60

Loss of flush return