Mining methods from Ticmon

d. Problems in block caving regarding stability, reinforcement and secondary blasting

problems.

Sublevel block caving is a hybrid between sublevel caving and block caving introduced to counter

a. Drilling and lasting problems in sublevel caving.

b. Draw control problems in block caving.

c. Problems in sublevel caving due to dilution and mining at depth

d. Problems in block caving regarding stability, reinforcement and secondary blasting

problems.

c. drawbacks in sublevel caving such as stability problem as mining goes deeper and

The sublevel shrinkage method is a variant of sublevel caving and shrinkage stooping to developed to

reduce

a. drawbacks due to mechanization of operation

b. drawbacks due to mining at depth

c. drawbacks in sublevel caving such as stability problem as mining goes deeper and

minimizing dilution

a. 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:

a. longitudinal layout c. cross-section layout

b. perpendicular layout d. traverse layou

c. reasonably competent ore body characteristics enclosed by incompetent wall rocks

Sublevel caving method is applicable to:

a. competent ore body characteristics enclosed by strong wall rocks

b. weak ore body and wall rock characteristics

c. reasonably competent ore body characteristics enclosed by incompetent wall rocks

d. strong ore body and wall rock characteristics

d. the gravitational flow of the granular material produced by blasting and the caving waste rock

The optimum yield from the ore body in sublevel caving depends on:

a. the drilling and blasting technique

b. attitude of the ore body

c. the country rock overlying the ore body

d. the gravitational flow of the granular material produced by blasting and the caving waste rock

b. involves the formation of the in-situ ore into a mechanically mobile state by drilling and

Sublevel caving is a method that:

a. is applicable to a tabular ore body with 3 meters height

b. involves the formation of the in-situ ore into a mechanically mobile state by drilling and

blasting, and subsequently recovered.

c. is applicable to low plunging vein type deposit

d. rely on the caving of the ore

d. the country rock (hanging wall and foot wall) caves

Sublevel caving method remains to be called so due to the fact that:

a. the characteristic of the ore and country rocks have high capability index

b. the ore and country rock caves

c. the ore caves

d. the country rock (hanging wall and foot wall) caves

a. tests that good control of the gravity flow can be achieved when production drifts are wide and low

Front caving method is a special version of sublevel caving introduced by Jane lid (1975) that was based on:

a. tests that good control of the gravity flow can be achieved when production drifts are wide and low

b. Stability

c. the size or area of contact surface between blasted ore and caving waste rock

d. recovery and waste rock dilution

b. Unsupported

Sublevel caving and block caving are methods that are:

a. Naturally supported c. artificially supported

b. Unsupported d. None of the above

c. artificially supported

Mining Method

JAMIL G. MATANOG 2012 Page 2

c. the size or area of contact surface between blasted ore and caving waste rock

d. recovery and waste rock dilution

9. Sublevel caving and block caving are methods that are:

a. Naturally supported c. artificially supported

b. Unsupported d. None of the above

10.

a. Naturally supported

Room and pillar mining, sublevel stooping and long-hole open stooping methods are mining methods that

are:

a. Naturally supported c. artificially supported

b. Unsupported d. None of the above

d. hoisting

A system of transporting ore consisting essentially of head frame, head sheaves, winding machine and

winding ropes:

a. Conveyor transport c. rail transport

b. trackless transport d. hoisting

a. Cut-and-fill stopping with LHD

A mechanized cut and fills stooping

a. Cut-and-fill stopping with LHD c. rill stopping

b. Horizontal cut-and-fill stopping d. resuing

b. rock mechanics

Field of study concerned with checking the properties and behavior of rocks when subjected to force field:

a. slope stability c. ground control

b. rock mechanics d. soil mechanics

a. Gold

Mineral commonly whose international price level is heavily influenced by the strength of the U.S. dollar

and level interest rates:

a. Gold c. Nickel

c. Chromite d. Coppe

a. measured ore

Positive ore reserve is synonymous to:

a. measured ore c. possible ore

b. probable ore d. inferred ore

d. discounted cash flow rate of return

A technique of measuring expected profitability through the basic concepts cash flow and time value of

money

a. Hoskold formula c. accounting rate of return

b. payback period d. discounted cash flow rate of return

d. interest

It is a time-based cost being incurred continuously regardless of mining activity and being extinguished

only by complete capital repayment:

a. royalties c. depletion

b. depreciation d. interest

d. Break-even analysis

A profitability index used by project evaluators to ascertain the selling price and sales volume of the mineral

commodity to which no profit or loss will be incurred by the proponent company

a. Net present value analysis c. sensitivity analysis

b. Regression analysis d. Break-even analysis

d. gophering

Underground mining method frequently used by small-scale gold miners:

a. sublevel caving c. cut-and-fill

b. top splicing d. gophering

c. square set

Mining method used for wide veins or masses with weak ore which will stand unsupported only over small

openings:

a. Shrinkage stopping c. square set

b. top splicing d. sublevel stopping

a. Board of investments

Under the present set of mining laws, rules and regulations, tax exemption applications of mining

companies are being handled by:

a. Board of investments c. Ministry of Finance

b. Bureau of Mines and Geosciences d. Bureau of Customs

b. Black damp

Produced by fires, explosion of gas or dust where CO2 is an important constituent:

a. White damp c. After damp

b. Black damp d. Fire damp

d. 450 to 50

In stull stopping, the maximum deposit dip should range from:

a. 00 to 100 c. 500 to 600

b. 600 to 800 d. 450 to 50

a. Strong

Shrinkage stopping requires that the ore should be strong and the wall rock should be:

a. Strong c. moderately weak

b. very weak d. weak

c. coal mining

Room and pillar method is used predominantly in:

a. Quarrying dimension stones c. coal mining

b. deep-level gold mining d. metal mining

b. shrinkage stopping

An overhand method in which the ore is mined in horizontal slices and remains in the slope as a temporary

support for the walls and to provide a working platform.

a. overhand cut and fill stopping c. block caving

b. shrinkage stopping d. top slicing

d. open pit

Mining method that is exclusively by retreating method with the cut-off grade serving only to define the

fingers of major ore zones.

a. solution mining c. block caving

b. cut and fill d. open pi

a. Geo-statistical method

The best grade prediction technique that allows the lowest margin of error of estimation:

a. Geo-statistical method c. distance weighing method

b. Classical statistical method d. Conventional or Geometric methods

a. Hydraulicking

This is a type of placer mining:

a. Hydraulicking c. Quarrying

b. Open cut d. Strip mining

c. placer deposits

The unsupported underground mining methods can be used in any type except in:

a. hydrothermal deposits c. placer deposits

b. vein type deposits d. bedded deposits

b. competent and impervious

In borehole extraction (aqueous extraction), the rock should be:

a. permeable c. consolidated

b. competent and impervious d. unconsolidated

d. longwall

A horizontal exploitation opening, driven to connect levels, and used or haulage:

a. cross-cut c. room

b. counter drive d. longwall

b. Prop

A post (timber) used to support loose rocks, slabs in the roof in coal mining.

a. Muck c. Pillar

b. Prop d. Pack

d. long-wall

A system of coal mining using continuous miners and hydraulic roof support.

a. strip mining c. short-wall

b. Room and pillar d. long-wall

a. Trenching

An exploration method applicable to finding and following short, narrow and irregular veins.

a. Trenching c. Auditing

b. Diamond drilling d. Test pitting

d. Separate double blasting or selective operation, blasting the ore before blasting the wall to

serve as fill material

Dilution is kept to the minimum in reusing mining due to:

a. Systematic backfilling technique

b. Care fill drilling lasting procedure

c. The use of normal size mechanized equipment

d. Separate double blasting or selective operation, blasting the ore before blasting the wall to

serve as fill material

b. Vertical Crater Retreat (VCR) method

The analysis of the method in wide veins suggests that it is the safest method of mining today:

a. Shrinkage stopping c. cut-and-fill mining

b. Vertical Crater Retreat (VCR) method d. Sublevel stopping

d. Vertical holes are drilled on a designed pattern from a cut over stope or pillar to the bottom in

the back of the undercut

The Vertical Crater Retreat (VCR) method involves the procedure as:

a. Fan holes are drilled from a drift towards the direction of the undercut

b. Fan holes are drilled at the undercut level

c. Vertical holes are drilled on a designed pattern from the undercut level to the back of the sublevel

d. Vertical holes are drilled on a designed pattern from a cut over stope or pillar to the bottom in

the back of the undercut

a. Vertical Crater Retreat

A mining method that reminds of a sublevel stopping and is based on the principle of spherical charge and

catering concepts.

a. Vertical Crater Retreat c. Resuing Mining

b. Rill Mining d. Sublevel Retreat with backfill

d. Cut-and-fill in slices

Sublevel retreat with backfill is found n literature as:

a. Sublevel stopping c. Rill mining

b. Avoca Mining d. Cut-and-fill in slices