UPD - Mineral Prospecting and Exploration; Mine Planning, Design, and Development2

1,233.33 DMT/Day

After initial stripping, it is imperative that the waste to ore ratio is maintained with the same waste stripping rate of 1,000 cubic meters per day. Compute ore extraction rate in dry metric tons per day. (continued from item #33)

Tabular

Give a lateral deposit shape.

0.89 long tons

How many long tons are there in a short ton?

?

If a shovel worked for 500 hours a month, was under repair for 100 hours, and on standby for 50 hours, what is its Availability of Usage?

?

If a shovel worked for 500 hours a month, was under repair for 100 hours, and on standby for 50 hours, what is its Efficiency of Utilization?

?

If a shovel worked for 500 hours a month, was under repair for 100 hours, and on standby for 50 hours, what is its Mechanical Availability?

84.6%

If a shovel worked for 500 hours a month, was under repair for 100 hours, and on standby for 50 hours, what is its Physical Availability?

?

If the density of a certain sample is 6 grams per cubic centimeter, what is its equivalent Tonnage Factor?

Submarine Tailing Disposal

The discharge of tailing slurry from an underwater pipeline into deep ocean water is called.

?

A gold vein was intercepted at Level 300 meters. The same gold vein was again intercepted at Level 470 meters but 30 meters further to the west. What is its dip?

Directional Drilling

A method of drilling used to access material not directly under the drilling area is called:

81,081 cu.m.

A new mining project has a proved ore reserve of 2,000,000 WMT of iron ore. Specific gravity of the ore is 4 and the moisture content is 7.5%. With a stripping ratio of 3:1, it was decided to mine the ore by open pit. The Mining Engineer recommended to the management that before the ore extraction starts, 100,000 metric tons of ore be exposed first. Assumption: no matter how the orebody is approached, the waste to ore ratio remains constant. Compute the volume of overburden to be stripped to expose 100,000 dry metric tons of ore. *

Increasing Level of Geological Knowledge and Confidence

According to the PMRC, Mineral Resources and Ore Reserves mainly differ by:

Inferred Resources

All mineral resource types can transform into ore reserve types, except:

Materials Handling

All unit operations involved in excavating or moving bulk materials during mining can be called:

5 Years

Allowing 10% ore dilution, what is the expected life of the mine assuming 330 working days a year. (continued from item #33)

Gravity

Among the Geophysical methods, which can be used for detecting sedimentary deposits, salt domes, and coal beds.

Planimeter

Before the advent of mining software, the area of the cross-section of an orebody can be determined using.

81 Days

Calculate the number of days needed to do the initial stripping of item #33

Classical Statistics?

Conventional mineral resource and ore reserve estimation techniques _____________, compared with geostatistical methods that account for random variation.

Base Metals

Copper, lead, zinc, and tin are examples of these types of metal.

1080 tons/day and 3.78 M tons/year

Determine the daily and yearly production rate in a room and pillar coal mining using conventional equipment under the following conditions: Working place = 6 x 18 ft, Working Time = 7 hrs/shift, 2 shift/day, 250 days/year, Working sections = 14, Advance per cut = 10 ft, Cuts per shift = 12, Tonnage factor (tf) = 24 ft3/ton

Rotary-Drag Bit Drilling

Diamond drilling falls under the category of _______.

200 nautical miles offshore

Exclusive Economic Zone (EEZ) is __________.

Magnetic

Give a Passive Geophysical method that emits a Natural Field Source.

Bulk Sampling

Give a sampling method used for ROM (Run-of-mine) estimations.

4 x 6 inches

Hardwood timber is used as a post to support an average load of 20,000 pounds, 5 feet high. If the timber has a compressive stress of 900 psi, what would be the typical size of timber support most economical to be used for the purpose?

Hydrothermal

In _____ deposits, metals are deposited sometime after a rock has formed in response to a change in fluid solution characteristics.

50

In a mine with 2,000 employees where 100 were on sick leave and another 100 were on vacation leave for a particular month, there were 18 lost time accidents which accounted for 30 days lost. Assuming the employees worked for 25 days (for 8 hrs) and no one worked overtime, what was the accident frequency rate?

Detonator?

In blasting, this is a firing device that burns with a flash, used to ignite gun or pellet powder

60%

In getting a large scale Exploration permit, the minimum percentage of it being Filipino-owned is:

Rapid Excavation

Intermittent operations of rock breakage and materials handling are now often replaced with:

Development

It includes the work of driving openings to and in a proved orebody to prepare it for mining and transporting the ore.

Mineral Resource

It is a concentration or occurrence of material of intrinsic economic interest in or on the Earth's crust in such form, quality, and quantity that there are reasonable prospects for eventual economic extraction.

Angle of Repose

The maximum slope at which a heap of any loose material will stand without sliding or come to rest when poured on dumped in a pile or on a slope is called:

1/2 minute of latitude and 1/2 minute of longitude

The size of a meridional block (for metallic mines) is equal to: - (approx. 81 ha)

Freeboard

The vertical distance between the top of a tailings dam and the full supply level on the reservoir is called

Kerogen

These are the precursor to hydrocarbon fuels.

Pit Limit

This defines the vertical and lateral extent of the economically mineable pit boundary.

inclinometer or clinometer

This is an instrument used for measuring angles of slope (or tilt), elevation, or depression of an object with respect to gravity.

Mineral Deposit

This is an occurrence of sufficient size and grade that it might, under the most favorable of circumstances, be considered to have economic potential.

Box Cut or Drop Cut

This is the initial entry or a wedge-shaped prism of rock that must be removed to establish a new bench face in Open Pit Mining.

Waste

This is the material that must be discarded after mining.

Direct Method

This refers to prospecting methods that may use aerial photography, geologic mapping, structural assessment, and visual examination of outcrops.

Secondary Dispersion

This refers to the dispersed remnants of mineralization caused by surface processes.

Theory of Regionalized Variables

This states that natural phenomena are characterized by a distribution in space of one or more variables.

Reclamation

What is an alternative term for the final mining stage/phase?

Gross Value

What is equal to the product of the grade, recovery, and price?

Spontaneous Polarization Technique

What is the geophysical exploration technique most applicable to porphyry copper deposits?

Barite

Which sulfate mineral is used in drilling mud?