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Rock Mechanics and Metallurgy Flashcards

1
Q
  1. 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

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2
Q
  1. Which of the following mineral is metallic
    a. Gypsum
    b. Feldspar
    c. Barite
    d. Attapulgite
    e. Hematite
A

E

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3
Q
  1. In rock mechanics, the ratio of the stress to the strain is called
    a. Tensile strength
    b. Rapture limit
    c. Poisson’s ratio
    d. Modulus of elasticity
    e. Shear strength
A

D

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4
Q
  1. 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. Scavenging flotation
A

D

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5
Q
  1. The principal mineral of manganese
    a. Cinnabar
    b. Argentite
    c. Pyrolusite
    d. Ilmenite
    e. Magnesite
A

C

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6
Q
  1. In fire assaying, the bead sometimes contains very little silver to part and therefore it is necessary to alloy it with more silver. What do you call this process?
    a. Cupellation
    b. Inquartation
    c. Dissolution
    d. Salting
    e. Fusion
A

B

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7
Q
  1. It includes extraction processes of metal values from the ore or concentrate which are undertaken at high temperatures
    a. Ore dressing
    b. Pyrometallurgy
    c. Smelting
    d. Converting
A

B

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8
Q
  1. Matte is a high temperature homogenous liquid solution of a mixture of
    a. Metal sulfides
    b. Metal oxides
    c. Arsenides
    d. Antimonides
A

A

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9
Q
  1. Which of the following refers to the process of reducing rocks an ore mineral to certain desired size or sizes where optimum mineral liberation is attained?
    a. Grinding
    b. Comminution
    c. Crushing
    d. Blasting
    e. Fragmentation
A

B

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10
Q
  1. The total in-situ medium containing structural features
    a. Rock material
    b. Orebody
    c. Rock mass
    d. Deposit
    e. Rock block
A

C

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11
Q
  1. Why do rocks often fail at the crown of a tunnel?
    a. Because of tensile stresses
    b. Due to high vertical stresses
    c. Due to horizontal stresses
    d. Because of shear stresses
A

A

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12
Q
  1. In assaying, if the weight of the gold bead recovered is 2 grams, what is the grade assay of the ore if the sample is 1 assay ton?
    a. 1 gmt
    b. 2 gmt
    c. 2.5 gmt
    d. 3 gmt
    e. 1.5 gmt
A

B

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13
Q
  1. The character of rock that changes from its original form or volume or rock specimen
    a. Yield
    b. Deformation
    c. Plasticity
    d. Stress
    e. Modulus of elasticity
A

B

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14
Q
  1. The term used to describe the intact rock between discontinuities
    a. Rock mass
    b. Aperture
    c. Rock material
    d. Infilling
    e. Roughness
A

C

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15
Q
  1. 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 these
A

C

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16
Q
  1. The mineral recovery processes is most applicable to sulfide ores particularly chalcopyrite
    a. Classification
    b. Smelting
    c. Flotation
    d. Cyanidation
    e. Leaching
A

C

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17
Q
  1. It is the nature and distribution of structural features within the rock mass
    a. Stress
    b. Geological features
    c. Rock material
    d. Rock structure
    e. None of these
A

D

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18
Q
  1. The minerals commonly used as drilling mud in diamond drilling
    a. Bentonite
    b. Clay
    c. Attapulgite
    d. Barite
    e. Andesite
A

D

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19
Q
  1. 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. Depressants
    e. Activators
A

C

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20
Q
  1. The perpendicular distance between adjacent discontinuities
    a. Aperture
    b. Roughness
    c. Infilling
    d. Spacing
    e. Jointing
A

D

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21
Q
  1. Main proponent of the Rock Mass quality classification system
    a. Bieniawski
    b. Deere
    c. Barton
    d. Terzaghi
    e. Lauffer
A

C

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21
Q
  1. In the operation of high capacity hydrocyclones, the overflow product consist of which material classification?
    a. Coarse materials
    b. Fine materials
    c. Concentrate
    d. Wash materials
    e. Middlings
A

B

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22
Q
  1. In fire assaying, what is the main composition of a dore?
    a. Au and Ag
    b. Cu and Ag
    c. Fe and Ag
    d. Au and Cu
    e. None of these
A

A

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23
Q
  1. What do you call the stream of crushed material that is conveyed back from the vibrating screen to either primary or secondary crushers for further size reduction?
    a. Dead load
    b. Conveyance load
    c. Tertiary load
    d. Primary load
    e. None of these
A

E

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24
Q
  1. The term used to describe material separating the adjacent rock walls of discontinuities
    a. Filling
    b. Mylonite
    c. Aperture
    d. Gouge
    e. Clay
A

A

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25
Q
  1. Weakest type of rock in terms of classification
    a. Sedimentary
    b. Metamorphic
    c. Igneous
    d. Both a and c
    e. None of these
A

A

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26
Q
  1. Proponent of the 1st rock mass characterization and classification system
    a. Bieniawski
    b. Deere
    c. Barton
    d. Terzaghi
    e. Lauffer
A

D

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27
Q
  1. It is the most conventionally used by the mining industry for the treatment of acid mine drainage
    a. Treatment with sodium hydroxide
    b. Treatment with sodium hypochlorite
    c. Reverse osmosis method
    d. Lime treatment
    e. Exposure to direct sunlight
A

D

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28
Q
  1. Which of the following byproducts of PASAR is being sold to Philphos for the manufacture of fertilizer?
    a. Slag
    b. Copper concentrate
    c. Pyrite concentrate
    d. Sulfuric acid
    e. Smelter steam
A

D

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29
Q
  1. 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. Gold dust
    e. Copper dust
A

B

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30
Q
  1. 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. Grinding media
    e. None of these
A

C

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31
Q
  1. Term used to describe the aerial or size of a discontinuity with a plane
    a. Aperture
    b. Roughness
    c. Persistence
    d. Filling
    e. Spacing
A

C

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32
Q
  1. In grinding, what do you call the ball mill rotation at which maximum grinding efficiency is attained
    a. Centrifuging
    b. Cataracting
    c. Maximum speed
    d. Critical speed
    e. None of these
A

D

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33
Q
  1. The main purpose of regrind ball mill
    a. To prevent overgrinding
    b. Increase the grade of final concentrate by detaching gangue minerals
    c. To ease the recovery process
    d. To ensure safety
    e. None of these
A

B

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34
Q
  1. The concept that used to describe the intensity of internal forces set up in a body under the influence of a set of applied surface force
    a. Force
    b. Stress
    c. Strain
    d. Poisson’s ratio
    e. Movement
A

B

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35
Q
  1. One of the following factors influence and enhance acid generation
    a. Lime treatment
    b. Availability of water
    c. Presence of limestone
    d. All of these
A

B

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36
Q
  1. In pertains to the surface unevenness and waiveness of the discontinuity relative to its mean plane
    a. Contour line
    b. Persistence
    c. Aperture
    d. Roughness
    e. Filling
A

D

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37
Q
  1. 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. All of these
    e. None of these
A

C

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37
Q
  1. Best ground support to be employed in slabby roofs
    a. Shotcrete
    b. Timber supports
    c. Grouts
    d. wire mesh
    e. rock bolts
A

A

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38
Q
  1. Sudden form of rock failure characterized by the breaking up and expulsion of rock from its surroundings
    a. Rock implosion
    b. Rock burst
    c. Spalling
    d. Rock breakage
    e. None of these
A

B

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38
Q
  1. In assaying, which of the following is an active and easily fusible acid flux often used as a cover for fusion in crucibles of furnace
    a. Borax
    b. Litharge
    c. Speiss
    d. Silica
    e. Lead
A

A

39
Q
  1. In the principle of flotation, what do you call the reagent that are used to create vigorous effercvescence and repeller bubbles in the skin
    a. Depressant
    b. Oxides
    c. Sulfides
    d. Frothers
    e. Activators
A

D

40
Q
  1. Length of drill core pieces recovered in a single core run considered as intact rock in RQD
    a. <10mm
    b. >10mm
    c. 10 cm
    d. <10cm
    e. >10cm
A

E

41
Q
  1. 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
A

C

41
Q
  1. Reduction of iron oxides into metallic iron using carbon monoxide from partial combustion of carbon is an example of
    a. Converting
    b. Smelting
    c. Fire assaying
    d. Refining
    e. Pyrometallurgy
A

B

42
Q
  1. These materials where all volatiles have been removed by heating
    a. Sinter
    b. Calcine
    c. Blister
    d. Dross
    e. Bullion
A

B

43
Q
  1. Main proponent of RQD
    a. Bieniawski
    b. Deere
    c. Barton
    d. Terzaghi
    e. Lauffer
A

B

44
Q
  1. It is the formation of planes of separation in the rock material
    a. Bedding plane
    b. Fillings
    c. Rock mass
    d. Fracture
    e. None of these
A

D

45
Q
  1. Weight of overlying rock applies pressure in all directions to given body of rock
    a. Overburden
    b. Normal stress
    c. Confining pressure
    d. Point load
    e. Stress
A

C

45
Q
  1. Graphical representation of shear and normal stresses on inclined planes
    a. Scan-line mapping
    b. Scan-line survey
    c. Mohr circle
    d. Plane of weakness
    e. None of these
A

C

46
Q
  1. It is concerned with the mechanical responses of all geological materials including soil
    a. Geomechanics
    b. Soil mechanics
    c. Rock mechanics
    d. Tectonics
A

A

47
Q
  1. It is the fuel in an iron blast furnace
    a. Coal
    b. Matte
    c. Cake
    d. Bunker oil
    e. None of these
A

E

47
Q
  1. It states that the work input in crushing or grinding is proportional to the new surface area produced on the particles
    a. Bond’s law
    b. Rettinger’s law
    c. Kick’s law
    d. Fick’s law
    e. None of these
A

B

48
Q
  1. The stationary crushing surface of a cone crusher
    a. Mantle liner
    b. Bowl liner
    c. Spider
    d. Concave liner
    e. Gape
A

B

49
Q
  1. Reagent used in dissolving gold from finely ground ores through leaching
    a. Cyanide
    b. Nitric acid
    c. Aqua regia
    d. HCl
    e. None of these
A

A

50
Q
  1. Set of line on the surface of the rock mass, and the survey consists of recoding data for all discontinuities that intersect the scan line along its length
    a. Contour lines
    b. Toop lines
    c. Scan line
    d. RMR
    e. MRMR
A

C

50
Q
  1. When rock can sustain further permanent deformation without losing load carrying capacity, this rock is experiencing
    a. Effective stress
    b. Ductile deformation
    c. Brittle deformation
    d. Strain
    e. None of these
A

B

50
Q
  1. The frother added o flotation pump _______ the mineralized bubbles rising to the surface of the pul
    a. Stabilizes
    b. Expands
    c. Contracts
    d. Activates
    e. Destabilizes
A

A

50
Q
  1. It states that the work input In crushing or grinding is proportional to the reduction in diameter of the particles
    a. Bond’s law
    b. Rettinger’s law
    c. Kick’s law
    d. Fick’s law
    e. None of these
A

C

51
Q
  1. Sulfide flotation is normally undertaken at this pH.
    a. Acidic
    b. Basic
    c. Neutral
    d. Strongly acidic
    e. Acidic to basic
A

B

52
Q
  1. Most reliable way of exploring the interior of a rock mass prior to mining
    a. Variogram
    b. Geochemistry
    c. Core drilling
    d. Test pitting
    e. Geophysics
A

C

53
Q
  1. Also known as the Q-System
    a. RQD
    b. Rock Load Factor
    c. Rock Mass Quality
    d. Tunnel Stand-up Time
A

C

54
Q
  1. Flotation process where all valuable minerals are floated from gangue for subsequent separation of each of the valuable minerals
    a. Bulk flotation
    b. Skin flotation
    c. Heap leaching
    d. Differential flotation
A

A

55
Q
  1. Flotation reagent which prevents the collectors from coating the mineral surface
    a. Activators
    b. Suppresants
    c. Modifiers
    d. Classifiers
    e. None of these
A

E

56
Q
  1. Aside from Terzaghi’s Rock Load Factor, what is one other classification system under Qualitative study
    a. Q-System
    b. RQD
    c. GSI
    d. RSR
    e. None of these
A

C

57
Q
  1. Flotation reagent which enhances the collector coating on the mineral surface
    a. Activators
    b. Suppressants
    c. Modifiers
    d. Classifiers
    e. None of these
A

A

58
Q
  1. When the rock reach its maximum stress, usually averaged over a plane, the rock can sustain under a given set of conditions
    a. Yield
    b. Strength
    c. Stress
    d. Effective stress
    e. None of these
A

B

58
Q
  1. A step in fire assaying where the dore after having been weighed flattened is treated with nitric acid
    a. Parting
    b. Inquartation
    c. Digesting
    d. Flattening
    e. None of these
A

A

59
Q
  1. A step in fire assaying where the lead button is carefully oxidized to recover the precious metals it had dissolved
    a. Cupellation
    b. Parting
    c. Inquartation
    d. Lead button
    e. Fusion
A

A

60
Q
  1. It is the source of metallic lead in fire assaying
    a. Niter
    b. Slag
    c. Borax
    d. Litharge
    e. None of these
A

D

61
Q
  1. It defines the shear stress components vanish, that is possible to select a particular orientation for a plain such that it is subject to normal stress
    a. Principal plane
    b. Principal stress
    c. Yieldpoint
    d. Strain
    e. None of these
A

A

62
Q
  1. The fractures on which identifiable shear displacement has taken place
    a. Joint
    b. Faults
    c. Join sets
    d. Bedding planes
    e. Microfractures
A

B

62
Q
  1. Commonly desired weight of lead button
    a. 28 g
    b. 29 g
    c. 32 g
    d. 27 g
    e. None of these
A

A

63
Q
  1. Has zero tensile strength component in a rock mass
    a. Rock block
    b. Filling
    c. Gouge
    d. Joints
    e. None of these
A

D

64
Q
  1. Based on a short ton, 1 assay ton is equivalent to ____ grams
    a. 29.166
    b. 32.66
    c. 22.616
    d. 28.166
    e. None of these
A

A

65
Q
  1. The angle between the surface of a mineral and the wall of an air bubble on the surface
    a. Collection angle
    b. Attachment angle
    c. Bubble angle
    d. Contact angle
    e. None of these
A

D

66
Q
  1. Type of jaw crusher where the upper end of the movable crushing surface is the fulcrum end while the lower end swings to and from the stationary surface
    a. Blake type
    b. Dodge type
    c. Single toggle type
    d. Double toggle type
    e. None of these
A

A

66
Q
  1. Heat treatment process where the metal or alloy is cooled very fast after being heated
    a. Hardening
    b. Annealing
    c. Smelting
    d. Fusion
    e. None of these
A

A

67
Q
  1. This heat treatment cools the metal or alloy in still air after being heated at some predetermined conditions
    a. Hardening
    b. Annealing
    c. Smelting
    d. Fusion
    e. None of these
A

E

68
Q
  1. The distance range of discontinuity spacing which is considered as extremely close spacing
    a. 20-60 mm
    b. 60-200 mm
    c. 50-200 mm
    d. 60-200 mm
    e. None of these
A

B/D

69
Q
  1. The way to describe qualitatively in which stress and strain are related in a material under load
    a. Elasticity
    b. Plasticity
    c. Poisson’s ratio
    d. Stress
    e. Constitutive behavior
A

E

69
Q
  1. It is an economic justification of ore dressing
    a. Savings in mining cost
    b. Savings in freight
    c. Savings in milling cost
    d. Savings in manpower
    e. All of these
A

B

69
Q
  1. It is the product of an iron blast furnace
    a. Pig iron
    b. Wrought iron
    c. Cast iron
    d. Malleable iron
    e. None of these
A

A

70
Q
  1. It is the size to which an ore must be reduce so that almost all of the valuable mineral is freed from attachment with the gangue materials
    a. Screen size
    b. Separation size
    c. Grind size
    d. Liberation size
    e. None of these
A

D

71
Q
  1. The process wherein air is blown through molten pig iron or matte where by sulfur and other impurities are removed from the melt
    a. Smelting
    b. Converting
    c. Blowing
    d. Roasting
    e. Annealing
A

D

72
Q
  1. Bronze is an alloy of copper and ______
    a. Zinc
    b. Iron
    c. Tin
    d. Lead
    e. None of these
A

C

72
Q
  1. Brass is an alloy of copper and _____
    a. Zinc
    b. Iron
    c. Tin
    d. Lead
    e. None of these
A

A

73
Q
  1. The property of metals which non-metals do not have
    a. Porosity
    b. Hardness
    c. Malleability
    d. Durability
    e. None of these
A

C

74
Q
  1. Hydrometallurgical processes where solutions such as acids, bases, or aqueous salts are used to dissolve the desired metal or mineral for eventual recovery
    a. Leaching
    b. Electrowinning
    c. Precipitation
    d. Solvent extraction
    e. None of these
A

A

74
Q
  1. A metal containing minute amount of other elements
    a. Brass
    b. Bronze
    c. Black metal
    d. Solid solution
    e. None of these
A

E

75
Q
  1. In CIP, activated carbon is in contact with the cyanide solution ________ the leaching process
    a. Before
    b. After
    c. During
    d. Intermediate
    e. None of these
A

B

76
Q
  1. In CIL, activated carbon is in contact with the cyanide solution ________ the leaching process
    a. Before
    b. After
    c. During
    d. Intermediate
    e. None of these
A

C

77
Q
  1. In CIP, the material that effectively remove the cyanides of precious metals from the leach solution
    a. Coal
    b. Charcoal
    c. Activated carbon
    d. Coke
    e. None of these
A

C

78
Q
  1. It is a pig iron converting process
    a. Bessemer process
    b. Merryl Crowe process
    c. Furan process
    d. Durville process
A

A

79
Q
  1. Also known as the Q-System
    a. RQD
    b. Rock Load Factor
    c. Rock Mass Quality
    d. Tunnel Stand-up Time
A

C

79
Q
  1. It is a major gaseous product of sulfide roasting
    a. CO
    b. SiO2
    c. CO2
    d. SO2
    e. None of these
A

D

79
Q
  1. Aside from Terzaghi’s Rock Load Factor, what is one other classification system under Qualitative study
    a. Q-System
    b. RQD
    c. GSI
    d. RSR
    e. None of these
A

C

80
Q
  1. It is a product of sintering process
    a. Tungsten Carbide Cutting Tips
    b. Aluminum rivets
    c. Bronze rivets
    d. Tool steel cutting tips
    e. None of these
A

A

81
Q
  1. Screening equipment that has two separate products
    a. Single deck screen
    b. Double deck screen
    c. Triple deck screen
    d. Apron feeder
A

A

81
Q
  1. Precious metal values can be recovered from loaded carbon by
    a. Smelting
    b. Converting
    c. Roasting
    d. Precipitation
    e. None of these
A

A

zCorrelation (7 decks)

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