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WorksheetsMining Quiz
Total questions: 57
Worksheet time: 29mins
What is mining?
Extraction of refined material
Non-invasive process
Perfectly safe
Extraction of valuable geological materials
Why is mining important?
Mass destruction of water bodies
Provides raw materials
Biodiversity
Because people like explosives
Which resource is not mined out?
Minerals
Fuels
Plastic
Metals
What is the disadvantage of haulage with trucks?
Flexible loading
Flexible routes
Tire wear
High altitude changes
What do we usually transport in mining?
Geological Data and Maps
Raw material
Water
Textiles and Clothing
Prospecting is a stage where we visually inspect the area.
True
False
Exploration is low-risk activity.
Yes
No
Which material is regarded as energy resource?
Sand
Sapphire
Limestone
Coal
Production is usually expressed in:
tons/year
kg/m3
tons/(year*person)
g/cm2
What is the main difference between machines for underground and surface mining?
Size
Colour
Wheels
Shovel
What does JORC stand for (in terms of mining)?
Joint or recreational candidate
Joint ore reserves committee
Joint Operations and Resource Compliance
Junior Ore Resource Commission
Deposit is an occurrence which has or will have in the near future economic value due to its position, size and properties.
True
False
What is the leading country in the coal production?
China
US
Poland
Australia
During the rock breakage the fragmentation is directly depending on the:
Specific energy input
Specific costs
Blasting impact
Alternative methods
Most common Exploitation process is:
Rock breakage
Prospecting
Overburden stripping
Benching
Is recycling regarded as a source of raw materials?
Yes
No
How many staked mining claims do you think it takes to find 1 ore deposit worth mining?
10
200
25 000
10 000
Is geometry of the deposit influencing the choice of mining method?
Yes
No
Which country is leading in copper production?
Chile
Peru
DR Congo
China
When we want smaller fragments of rock/ore, we should use:
Less energy
Electrical detonator
More explosive
Less explosive
Room and pillar method is not suited for:
Tabular horizontal deposit
Tabular inclined deposit
Massive deposit
Vertical deposit
Which material does not fit in?
Gold
Steel
Copper
Silver
What is geographical/morphological position?
Same as spatial position
Depth of deposit
The study of words
The location on the Earth (latitude and longitude)
What is revenue?
Money generated from normal business operations
Type of animal
Tax money
Gross income
Deposit is mineable when its value is not significant to the economic market.
True
False
Which operations are generally larger in volume and size?
Open pit
Underground mines
Overhand cut and fill method has ___________ on the roof.
Backfill
Ore
What is the payload of the biggest dump truck?
496 tons
656 tons
105 kg
50 tons
Which machine is not used for hauling?
Truck
Conveyor belt
LHD
Rope shovel
What is the minimum number of accesses to hard rock underground mine?
1
2
3
4
What is the least influencing factor for selection of the mining method?
Shape of the deposit
Depth
Rock mass conditions
Geographical position
When do we apply mechanical breakage?
Very hard rock (UCS>150MPa)
Relatively weak rock (UCS<150MPa)
Only in open pit mining
Never
Increase in the specific surface after blasting is approximately:
200x
10x
2000x
It does not increase
What does not fit into exploitation activity?
Rock breakage
Ramp construction
Haulage
Loading
The process of closing a mine includes re-contouring, revegetating, and ________.
Planning another mine
Restoring water
Further exploitation
Rock breakage
Which machine does not fit into the category of hauling machines?
Truck
LHD
Hydraulic excavator
Conveyor belt
Which machine is not used underground mining?
Tunnel boring machine
Longwall drum shearer
Bucket wheel excavator
Continuous miner
What is the biggest advantage of the wheel loader compared to hydraulic excavator?
It can break and load
Many loading points
Works also beneath the muck pile
Doesn't require so much space
Which haulage method would be the best suitable for a very deep underground mine that is nearby processing facility?
Ramp
Shaft
Conveyor belt
Cable car
What is not rock breakage method?
Mechanical
Drill and blast
Alternative methods
Exploration
Mine site rehabilitation process usually takes:
2-3 years
10 years
100 years
Few days
How do we determine if surface or underground mine would fit better?
Size of the operation
Final depth
Geometry of the ore body
Geographical position
How long conveyor belt would be if the inclination is 15°, and height it needs to overcome is 10m?
38m
18m
26m
42m
Wheel loader is:
Used for load and haul
Stationary equipment
Used on only one site
Used to break rocks
Open stoping requires rock mass quality to be:
Excelent - good
Low - good
Medium
Very bad
Advantage of the block caving method is:
Prediction of ore/waste caving behaviour
Low flexibility
High productivity
Preparatory work
Caving methods are usually SMALL size operation.
True
False
Characteristic of mining is:
Unlimited lifetime
Low initial investment
Uncertainty with time (prices, global demand…)
Certainty with the ore body (precise size and boundaries)
What is the minimum width of the ramp if there should be a 40t truck passing in a one-way road?
2m
5m
10m
20m
Solution mining is used for:
Salt
Hard rock
Iron
Copper
Purpose of the ventilation underground?
Providing fresh air for working staff and machinery
Promoting the Growth of Underground Vegetation
Generating Electricity for Mining Operations
Enhancing Communication Signals within Mines
H2S is:
Helium sulphide
Sulphur dioxide
Nitrogen oxide
Hydrogen sulphide
TLV in mining ventilation stands for:
Total lung volume
Terminal loading valve
Treshold limit value
Transverse light velocity
What is the lethal percentage of oxygen for humans?
20%
16%
13%
10%
Which of the following gasses is explosive?
Nitrogen Dioxide
Methane
Sulphur dioxide
Carbon monoxide
WOR means:
Water oil reservoir
Waste ore ratio
Weighted ore recovery
Well output ratio
What is UCS in terms of rock mechanics?
Unified computing system
Uniaxial compressive strength
Uniform coefficient stability
Unidentified confinement state
