Diagnostic Test Mining 1

A. Deck priming

What priming technique is used in holes intersecting large joint(s)?

A.deck priming

B.top priming

 C.middle priming

D.dual priming

C.50 meters

Any mine working that will be driven under rivers, seas, or any accumulation of standing or running water on broken, or fractured igneous rock shall have a thickness of _______from the true river bed to the roof of mine working.

A.30-50 meters

B.25 meters

C.50 meters

 D.25-30 meters

D.Other operations should halt despite locating outside the danger zone

Which of the following is true about adjacent operations to blasting?

A.Blast operations should be relocated if the blast area is near structures that cannot be evacuated such as offices

B.Mobile operations such as hauling are allowed inside the blast danger zone

C.People in adjacent operations should only be notified right before blasting

D.Other operations should halt despite locating outside the danger zone

D.remote sensing

This prospecting method uses different photogeological elements like topography, tone, erosion, vegetation, and other land features to infer the topographical configuration and lithology.

A.Geographical Information System

B.photgeology

 C.None of the above

D.remote sensing

C.Stull stoping

It is a timbered stope but classified as a self-supporting opening because the timbers are not used as support but to provide working platforms for miners. The method is applicable to very narrow veins so that the timbers to be used are normally 5 -6 ft.

A.Resuing

B.Shrinkage Stoping

C.Stull stoping

D.Top slicing and cover caving

E.Square-set Stoping

A.bootleg

It is the portion or remainder of shothole in a blasted face.

A.bootleg

B.hangfire

C.misfire

D.overblast

 B.3 meters

High working conditions put workers at risk of falling or slipping from a dangerous height. At what elevation should employees start wearing safety belts, harnesses, straps, or lifelines?

A.1.5 meters

 B.3 meters

C.5 meters

D.15 feet

A.crown pillar

Which of the following refers to that portion of an orebody that is left in place above an excavation?

A.crown pillar

B.sill pillar

C.island pillar

D.rib pillar

B.53°

Given: bench slope angle = 70°; bench height = 20m

Given a berm of 8 meters, what is the pit slope angle?

A.51°

B.53°

C,55°

 D.57°

B.brattices

In mine ventilation, what do you call the artificial doors that are installed purposely to divert the flow of fresh air in to the underground workings?

A.bulkheads

B.brattices

C.chute covers

D.automatic doors

E.sliding doors

A narrow vertical or inclined opening excavated in a deposit at the end of a stope to provide a bench face.

A.Slot

B.Winze

C.Chute

D.Raise

E.Subllevel

C.Pre-splitting

A smooth blasting method in which cracks for the final contour are created by blasting prior to the drilling of the rest of the holes for the blast pattern.

A.Block holing

B.Burn-cut Blasting

C.Pre-splitting

D.Perimeter blasting

 exudation

What do you call the physical separation of nitroglycerine or any nitrobody from the explosives medium?  The liquid nitroglycerine sometimes seeps outside the waxed wrapper of dynamite sticks.

bleeding

oozing

 exudation

diffusion

A core size of at least NX drilled with double-tube core barrel using a diamond bit.

For RQD determination, what is recommended by the International Society of Rock Mechanics?

A core size of at least EX drilled with triple-tube core barrel using a diamond bit.

A core size of at least AX drilled with triple-tube core barrel using a diamond bit.

A core size of at least BX drilled with single-tube core barrel using a diamond bit.

 A core size of at least NX drilled with double-tube core barrel using a diamond bit

Relatively incompetent orebodies

In terms of the competence of the orebodies, which condition is the best suited for block caving?

Relatively strong orebodies with weak walls

 Very hard orebodies

Relatively strong orebodies and strong walls

Relatively incompetent orebodies

atomic absorption

What instrumentation analysis tool used in mineral prospecting works in a way that atom vapors in an unresponsive state will absorb the light they release when they are responsive.

x-ray fluorescence spectroscopy

atomic absorption

 Fourier transform infrared spectroscopy

emission spectrography

fly rocks

n surface mines, what is the biggest safety threat in blasting?

toxic fumes

fly rocks

tremor

air blast

8.04

A company employing 800 workers, working regular hours for 26.17 days per month. For the period January to December of 2022, the company incurred 24 first aid cases, 12 Non-Fatal Lost-time accidents each with 2 days lost, two fatalities, and one permanent disability. Based on the MGB Green Book, 1 fatality or permanent disability is equivalent to 6000 days lost. Compute the frequency rate of the accidents.

8.04

7.74

4.47

8.74

Drill and blast is effective for rock fragmentation

Which of the following is true about drilling and blasting operations in mines?

Drill and blast is effective for rock fragmentation

 Drill and blast techniques are less flexible in underground mines

Blasting provides a safer method of rock fragmentation

Drill and blast technique is more costly than the use of TBM

21.3

Given: bench slope angle = 70°; bench height = 20m

What is the bench face or bench slope distance?

22.3

19.3

21.3

20

blending

Which of the following refers to the systematic process of combining various materials to produce a uniform mass?

sampling

leaching

blending

salting

oxidizer

What do you call an explosive component that is used to provide oxygen in detonation?

sensitizier

booster

blasting agent

slurry

oxidizer

porosity

Which of the following physical properties of rocks refers to the ratio between the volume of voids or open spaces inside a rock mass and the total volume of said rock mass or material?

expansion ratio

specific gravity

porosity

 bond work index

permeability

 No

When collecting samples, is it advisable to collect small sample quantities?

Maybe

Yes

 No

All of the above

Advise the management to continue the exploration since it's not the job of the geologist to classify the mineral resource as ore.

During reconnaissance, it was confirmed that there is a potential anomaly of refractory chromite minerals in the area. However, based on the initial shallow geochemical surveys, low-grade refractory chromite is found. What should be the best decision for the exploration geologists?

Advise the management to halt exploration because it is not economically viable.

Advise the management to continue the exploration since it's not the job of the geologist to classify the mineral resource as ore.

 Advise the management to continue exploration since there might be aluminum-rich mineral

Advise the management not to continue the project since it has no potential for chromite

Rolling Resistance

Is the sum of the forces opposing motion over level terrain for rubber-tired equipment.

Drawbar pull

Rim pull

Traction

Rolling Resistance

Seismic – Gravity Survey

Which geophysical method is typically used for hydrocarbon exploration?

None of these

Resistivity – Induced Polarization Survey

Seismic – Gravity Survey

Magnetic – Resistivity Survey

swell

It refers to the increase in volume of a material when loosened from its in-place or in-situ position?

work index

swell

friability

porosity

optimum pit limit

The line defining the area in which open pit operation maybe conducted to obtain maximum amount of ore material and minimum amount of waste material.

bench face

bench slope

optimum pit limit

gradient

 

bastard set

A square set whose members are not framed at their intersections and the timbers used are smaller than those of the square set.

top lagging

bastard set

spilling

bearing set

magazine

Where are explosives stored when on site?

next to the safety office

underground facility

magazine

far from the site

drill bit

Which of the following does not belong to the group?

drill bit

sludge

drilling dust

drill cutting

drill core

none of the above

Which of the following is not true?

Data records should possess unique identifiers

none of the above

 All primary data collected should be recorded even if it is not used for an MRMR estimate

The analytical methods and sample preparation procedures can have a major effect on the reported values and these should be documented

overhand stoping

n underground mining, a method in which the upper portion of the stope is mined first so that the broken ore is allowed to self-gravitate towards discharge chute.

overhand stoping

retreating method

advance method

underhand stoping

water or stream sediment samples

Geochemical prospecting is used to treat metals usually contained in?

water or stream sediment samples

waste dump samples

wind samples

flora samples

oil samples

flyrock

This refers to rock that is thrown an excessive distance from the blast site.

heave

overblast

flyrock

throw

Rotary drilling

A drilling technique employed in non-coring exploration in shallow holes in soft to medium-hard ground, either rock or soil.

Rotary drilling

Percussion drilling

Auger drilling

Diamond drilling

1.23:1

 

The chromite concentrate exports of Heritage Resources were assayed to contain 48% chromite and 25% magnetite.  What is the calculated Cr:Fe ratio of the concentrate?

1.23:1

3.23:1

2.23:1

4.23:1

5.23:1

Millerite

Which of the following naturally occurring minerals has no potential to neutralize AMD?

Millerite

Limestone

Dolomite

Kaolinite

sedimentary rocks

Limestone formations, whether folded or heavily faulted are what type of rocks?

deposit by man and machines

vein type deposits

sedimentary rocks

volcanic in origin

igneous rocks

Accident Frequency Rate

This is defined as the total fatal and non-fatal
lost-time accidents per million manhours worked.

Accident Severity Rate

Near Miss Rate

Incidence Rate

Accident Frequency Rate

drawbacks in sublevel caving such as stability problem as mining goes deeper and minimizing dilution

The sublevel shrinkage method is a variant of sublevel caving and shrinkage stoping. What does this method reduce?

drawbacks in sublevel caving such as stability problem as mining goes deeper and minimizing dilution

drawbacks like stability issues caused by mining at depth

drawbacks due to mechanization of operation

drawbacks in shrinkage stoping such as dilution

45 degrees west

A gold vein was intercepted by diamond drilling at Level 500 meters.  The same gold vein gain intercepted by another diamond drill hole at Level 470 meter but 30 meters further to the west.  If the vein maintains a consistent thickness and grade throughout, what is the dip of the vein?

60 degrees west

35 degrees west

45 degrees west

50 degrees west

27 BCM/h

ind the loading production given the following parameters:

Bucket Capacity: 1.3 cu.m.

Swell Factor: 0.8

Operating Efficiency: 0.8

Fill: 0.9

Propel time Factor: 0.9

Load Cycle Time: 90 Seconds

27 BCM/h

25 BCM/h

30 BCM/h

33 BCM/h

rock quality designation

What is the most commonly used method for characterizing the jointing in borehole cores which are defined as the ratio of the total length of sound core pieces that are 0.1 m or longer to the length of the core run?

geological strength index

rock mass rating

tunnel quality index

rock quality designation

Open cast

What mining method is the most widely applied method for extracting coal and other near-surface bedded mineral deposits.

Open cast

Dredging

Quarrying

Auger Mining

Room and pillar

Is a widely used, low-cost method to extract flat-lying to inclined deposits in competent rock. The method is used for metals such as copper and lead; nonmetals such as limestone, trona, potash, and salt; as well as construction aggregates.

Room and pillar

Block caving

Longwall mining

Sublevel stoping

adit

This refers to the horizontal or near-horizontal underground development opening driven from the surface to an orebody 

drift

tunnel

crosscut

adit

gossan

 

Which of the following indicates a ferruginous outcrop?

dike

hanging wall

gossan

horse

overburden

7.4 million cu.m.

A Copper mining project have a reserve to extract materials with different densities simultaneously. The first five years to mine are 20,000,000 WMT with a density of 3.5 MT/c.um., while the remaining five years is 17,500,000 WMT with a density of 2.8 MT/c.um. The average in-situ moisture content and swell factor are 9% and 30% respectively. What will be the LCM for the remaining five years?

7.4 million cu.m.

7.2 million cu.m.

7.3 million cu.m.

7.1 million cu.m.

Frasch process

This process is used in extracting elemental sulfur. Large quantities of hot water are pumped into the sulfur deposit, causing the sulfur to melt and allowing it to be pumped to the surface.

Claus process

Frasch process

in-situ leaching

acid leaching

kerogen

What is the solid petroleum that occurs as a component of shale?

coke

kerogen

bitumen

coal

marcasite

Which of the following minerals can generate acid mine drainage?

magnesite

marcasite

magnetite

malachite

Cutoff grade

The ore grade where the value of the metal within the ore equals the cost of mining the ore and waste rock above the ore.

High grade

Marginal grade

Mill grade

Cutoff grade

Factor of Safety

What is defined as the total force available to resist the sliding of the rock block to the total force tending to induce sliding?

Cohesion

Internal friction

Excavation Support Ratio

Factor of Safety

High-level pH value of water.

Which of the following is not a key indicator of Acid Mine Drainage?

1

Corrosion of concrete or steel structures.

Poor productivity of revegetated areas.

High-level pH value of water.

Orange-brown iron oxide precipitates.

planar failure

What mode of slope failure is characterized when the rock block slides on a single face that can be a joint plane or bedding plane striking parallel to the slope face and dipping into free space or excavation at an angle greater than the angle of internal friction of the joint or bedding material?

planar failure

circular failure

rotational failure

wedge failure

gob

This refers to the part of a mine from which the ore has been wholly or partially removed, leaving waste in the old workings.

gob

level

room

pillar

modulus of elasticity

Which of the following is defined as the ratio of the stress to the strain?

shear strength

tensile strength

Poisson's ratio

modulus of elasticity

discontinuity

A word commonly used in rock mechanics as collective term for all fractures or features in a rock mass such as joints, faults, shears, etc. that have zero or relatively low tensile strengths is called:

discontinuity

lineation

fracture plan

structure

fabric

Holes in staggered pattern are more equidistant to adjacent holes

Which of the following statements is true about the different hole patterns in drilling?

Rectangle pattern produces more holes than the other patterns over areas of similar size

Holes in staggered pattern are more equidistant to adjacent holes

 

All hole patterns are amenable for quarry delay pattern except square pattern

Square pattern produces less uniform fragmentation than what rectangle pattern produces

RA 7076

This law is referred to as the "People's Small Scale Mining Act of 1995."

RA 7942

RA 7076

PD 463

RA 7670

Geochemical soil anomaly

What do you aim to find during the conduct of a soil sampling campaign?

Soil Material Qualities

Geophysical anomalies

Inferred Mineral Resource

Geochemical soil anomaly

Other operations should halt despite locating outside the danger zone

What is true about adjacent operations to blasting operations?

Blast operations should be relocated if the blast area is near structures that cannot be evacuated such as offices

Mobile operations such as hauling are allowed inside the blast danger zone

People in adjacent operations should only be notified right before blasting

Other operations should halt despite locating outside the danger zone

longitudinal layout

Sublevel caving layout depends primarily on the size and shape of the ore body, for steeply dipping and narrow ore bodies, the appropriate layout is:

cross-section layout

longitudinal layout

perpendicular layout

traverse layout

phreatic water

In open pit blasting, water in the drill holes always pose problems.  This water, which exist in the saturated portion of the drill hole, must be pumped out in order not to dissolve the ANFO which is highly water soluble. This water is technically called?

capillary water

soil water threshold

phreatic water

super-saturated moisture

underground stream

3.78 Million T/Yr.

Determine the yearly production rate in a room and pillar coal mine using conventional equipment under the following conditions.

Working place : 6 x 18 ft

Working time: 7 hr/shift, 2 shifts/day, 250 days/year

Working sections: 14

Advance per cut: 10 ft

Cuts per shift: 12

Tonnage factor (tf): 24 ft3/ton

3.90 Million T/Yr.

3.78 Million T/Yr.

3.58 Million T/Yr.

4.00 Million T/Yr.

grouting

What is the technique of injecting a fluid material into the rock mass to replace all air or water in its fissures and cracks?

grouting

reinforced sprayed concreting

guniting

shotcreting

58.7 mm

What is the nominal hole diameter of BX?

58.7 mm

74.6 mm

47.6 mm

36.5 mm

wave strength

Which of the following terms refers to the percentage of nitroglycerin in the straight nitroglycerin dynamite that produces the same deflection on the ballistic mortar as an equal weight of explosive?

detonation velocity

wave strength

explosive density

grade strength

stemming

This refers to the inert materials placed after the explosive charge to confine explosive energy.

damping material

subdrill

stemming

tamping stick

Circular failure

The main failure mode in unconsolidated material is?

Flexural failure

Planar failure

Wedge failure

Toppling failure

Circular failure

In-pit disposal

Once an open pit is no longer being used, it can be backfilled with tailings. What TSF configuration is described?

Comingling

Cross-valey

In-pit disposal

Paddock

room and pillar method

 

This underground mining method is applicable to deep-seated, tabular, flat, thin, and large deposits in areal extent with strong to moderate rock.

shrinkage stoping

room and pillar method

Vertical Crater Retreat Method

sublevel stoping

block caving

strip ratio

In open pit mine planning, which of the following refers to the tonnage of waste needed to be stripped to expose a ton of ore?

mining development

mind head

strip ratio

blending ratio

waste factor

Reducing the shear strength of potential failure surfaces

How does water pressure reduce the stability of pit slopes?

Increasing the shear strength of potential failure surfaces

Reducing the shear strength of potential failure surfaces

Reducing the tensile strength of potential failure surfaces

Increasing the tensile strength of potential failure surfaces

downstream

This TSF configuration is constructed with a single embankment formed with waste rock to create engineered embankments that are progressively raised to provide additional space for tailings storage.

downstream

hybrid

centerline

upstream

All of the above

As a mining engineer, information used in resource modeling for mine planning should be checked to avoid discrepancies in the actual implementation. What should be done in handling data?

All of the above

Look for factual errors

Check for suitability of the primary data

Check for completeness of the lithological and assay data

Bingham Canyon Mine

What is the world’s first low-grade, open pit copper mine and the largest man-made excavation?

Bingham Canyon Mine

Chiquicamata Mine

M’poneng Mine

Escondida Mine

7 units

A mine shaft that originally contained 400,000 cu.m. of water receives a daily influx of 5,000 cu.m. The shaft must be dewatered in 60 days by pumping 20 hours daily. As the mine superintendent, how many pumps will you install if the capacity of each pump is 1,000 gallons per minute and running at an efficiency of 60%? Allow additional stand-by pumps of two (2) units. Assume that there are 264 gallons per cu.m.

6 units

7 units

9 units

8 units

resistivity

Which of the following methods is most applicable in mapping or locating wet shears, clays o gravel deposits and in determining their thicknesses?

magnetic

gravity

telluric

resistivity

class A

What class of underground and surface mine employs a total of not less than 150 and 250 employees, respectively?

Class B

class A

class C

Class D

tunnel

Which of the following refers to a horizontal or nearly horizontal underground passage that is open to the surface on both ends?

winze

tunnel

drift

adit

crosscut

core drilling

This exploration method is best and widely used in establishing the area, depth and thickness of mineralization.  It is also used to gather data for ore reserves estimation and technical information essential in mine planning and designs.

rotary drilling

geochemical methods

geophysical methods

core drilling

test pitting

powder factor

This refers to the ratio of the weight of explosives needed to break a ton of ore or waste materials.

powder ratio

powder factor

powder consumption

powder fraction

4%

In the subsidence zone of block caving operations, what is the minimum gradient over the subsidence area to be maintained by regular backfilling to allow the draining off of rainwater?

8%

6%

4%

3%

2%

Lerchs-Grossman algorithm

In designing open pits, which of the following refers to the arithmetic method of searching the optimum limit of an open pit mine considering the maximum profits that can be stripped economically?

Lerchs-Grossman algorithm

graphical design technique

tonnage optimization

mine grade optimization

rotating cone technique

void index

The ratio of the weight of water absorbed to the weight of dry rock.

void index

bond index

porosity

permeability

10 cm x 15 cm

As a Mine Foreman, you have been assigned to support an underground heading that is experiencing heavy loose grounds.  You were supplied with hardwood timber of various sizes to support an average load of 20,000 pounds, 12.52 meters high.  If the timber has a compressive strength of about 61 bars, what approximate size of timber would you use as posts for the purpose?

10 cm x 15 cm

25 cm x 25 cm

15 cm x 20 cm

15 cm x 15 cm

tonnage to be hoisted

What should be considered in designing shafts for ore hoisting?

ventilation

tonnage to be hoisted

availability of skilled operators

mine drainage

shear strength, compressive strength, tensile strength, friction angle and failure envelope

What are shown in a triaxial rock test?

shear strength, compressive strength and friction angle

shear strength, compressive strength, tensile strength, friction angle and failure envelope

shear strength, compressive strength, tensile strength and friction angle

shear strength, compressive strength and tensile strength

1.68% Ni

As a grade control supervisor in a nickel project, what grade of ore would you blend to achieve the specification of 50,000 WMT with 1.50% Ni, when your vessel currently has 45,000 WMT of ore with 1.48% Ni?

1.55% Ni

1.75% Ni

1.63% Ni

1.68% Ni

Almost all the mineral lands in their respective provinces are already covered by prior mining rights and that permittees are not willing to relinguish their rights unless expired

Which of the following statements is the priy reason why most Provincial Mining Regulatory Boards (PMRB) are unable to establish certain areas in their respective provinces as Minahang Bayan nor People’s Mining Areas?

Military presence in the area due to insurgency issues

Insufficient political will to implement regulations

Almost all the mineral lands in their respective provinces are already covered by prior mining rights and that permittees are not willing to relinguish their rights unless expired

Minimal government funds that can be spent on the exploration of the area

burn cut

Which cut hole technique does not produce a free face by wedging?

wedge cut

burn cut

drag cut

diamond cut

Hazard Identification, Risk Assessment and Control (HIRAC)

This is conducted to effectively plan for the activities and mitigating measures to be implemented in the Safety and Health Program. It shall be an essential requisite in the planning and development of the SHP. It shall be participatory in nature and shall involve all relevant stakeholders in all stages of mining and mineral processing.

Consultation and Participation

Quantitative Risk Assessment

Hazard Identification, Risk Assessment and Control (HIRAC)

Qualitative Risk Management

3.1 meters

Following the rules by Ash, given the following parameters:

In-situ Tonnage : 25000 WMT

Density       : 2.3 MT/cum

Moisture       : 30 % Moisture

Borehole Diameter : 10.3 Centimeters

Bench Height : 5 Meters

Free Face Length : 60 Meters

Stemming Ratio : 0.7

Burden Ratio      : 30

Spacing Ratio     : 1.4

Subdrilling Ration: 0.35

 

Find the burden given with rectangular blast pattern.

1/1

3.1 meters

2.8 meters

2.9 meters

3.0 meters

Booster

Which of the following blasting paraphernalia increases magnitude of detonation?  It is installed between the initiating device and the main charge.

Igniter

Detonator

Gunpowder

Primer

Booster