fire assaying is considered

gold is soluble in

flour is used in assaying as

the step in assaying that forms the dore

soda ash is a powerful

this formula of iron oxide and silica FeOSiO2 is

in fission, process in assaying the reagent that enhance fluidity is

the artificial sulfide formed in the dry way in assaying

an alloy sufficient in precious metals bearing in economic significance

the assay of gold bullion is expressed as

the chiddy method is applicable in analyzing

slag factor is

the method of assaying carried out in a shallow clay dish by oxidizing fusion is called

the element that causes frequent trouble in Ag

an in-quart is added to

slag in the process of fussion becomes very viscous due to

one purpose of charge calculatoon is to

in assaying loaded carbon, the oxidizing agent is used is

The reducing power of pyrite when soda ash is added is

an assay ton is

silica is

for sulfide ores, we use

the step where the Pb is oxidized is called

mercury vaporizes

the allpy of gold and silver produces after cupellation

the reducing power of flour is

to prepare cupel, the principal component is

the ideal size of Pb button is

the oxidising power of niter is

12 karat gold is

reducing power of niter or salt peter is

what is the maximum temperature for the fusion stage

which of the following are undesirables in fire assaying

which among the following is not a classification of slag material

one AT or assay ton is equivalent to

in the general sampling procedure, the first lot should be what size wrt whole lot

in fire assaying, it is the temperature wherein litharge melts?

the dilute acid used in fire assaying is

the cupel is made of what material

it is the fusion stage wherein the reaction involves the evolution of gases

borax melts at what temperature

what does salt do in fire assaying

in fire assaying the oxidation of Pb and PbO is

which of the following arr examples of neutral flux

it is an artificial metallic arsenide o antimonide formed during smelting operation. in fire assaying, it is in the form as an arsenide of iron

this is an active readily fusible acid flux. it is often used as a cover for crucible fusion

the readily fusible acid flux. it is depxidizing desulfurizing agent and when reduce, applies the metal necessary for the collection of gold and silver

powerful oxidizing agent. it is in fire assat to oxidize sulphides arsenic, etc. when present in large amount it causes boiling of the crucible charge and necessitates careful heating to prevent loss. what is the oxidizing agent.

the lead button is separated crom the slag and then treated by thus process. this consists of oxidizing fusion in porous vessel

which of the following is an important characteristic of chemical grade chromite

in gyratory crusher, what do you call the moving or gyrating component of the crusher

which of the following is a chemical derivative product of chemical grade chromite and is base material in the manufacture kf other value added chrome based industrial product

gold is widely used in which of the following industries

in recovering gold from an amalgam, what do you call the process of precipitating the mercury to free the gold the. later condensing the same to recover the mercury for possible re-use

in the conventional belt conveyor arrangement drive motors are often manufactured at high RPM. this is translated to a speed optimum for material belt conveyance by which of the following equipment

in a lab test of effluent samples, ferrous sulfate is precipitated into ferric hydroxide after hydrolysis. the resulting reaction also produces sulfuric acid (H2SO4). once the H2SO4 is made to react with quick lime (CaO), it produces the following product

in fire assaying, which of the following is an bactive and readily fusible acid flux often used as a cover for fusion in crucibles or furnace vats

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 cqll this process

what is the product when the metallurgical chromite is smelted

which of the following refers to the process of reducing rocks and or minerals to certain desired size or sizes where optimum mineral liberation attained

which of the following grinding equipment uses various steel materials and hard rocks of assorted sizes and shapes such as pre cut drill steels or rods, scrap iron, etc as main grinding medium

what do you call the process of taking a small portion of a body as a replresentative of a larger volume and is done in a regular and mechanical manner as possible

which of the following gold recovery processes refers to the dissolution of gold in mercury

which of the following refers to the process of recovering economic metals loke copper and gold from low grade ores by treating them with chemicals at controlled pH to dissolve the subject metals and later precipitate the sane with other agents

in the principle of flotation, what do you call the reagents that are used to create vigorous effervescence or repellant bubbles in the slurry

in conventional screw classifier, what do you call the overflow product

copper oxides cannot be recovered by flotation without prior subjecting them to which of the following

which of the following is the product of smelting iron ores with high charge of silica

which of the following is the product of smelting iron ores with high charge of pyrolusite

which of the following elements is strategic and beneficial in flash smelting process due to its contribution in reducing energy consumption in the furnace. this element produces heat during smelting

in the recovery of gold through counter current decantation processor CCD, what is the best and most economicak precipitating agent of gold from the pregnant solution using the merril crowe technology

in the operation high capacity hydrocyclones in closed circuit with large ball mills, which of the following is the overflow product from the hydrocyclone? this product is pumped to the flotation banks for mineral recovery

in dewatering of mineral concentrates, which of the following filter equipment is fitted with a number of rotating circular plate-like filter elements wrapped with filter cloths. these are connected to a common vacuum pump that suctions water as the rotating filter plates are immersed in a thicknened concentrate pulp

why there is a need to pelletize mineral concentrates beforecharging the same into a blast furnace

the previously uncontrolled mill tailings disposal of diwalwal gold rush area has environmentally damaged the downstream farmlands of compostela valley due to which of the following

in a jaw crusher, what do you call that part is stationary but is in direct contact with the material to be crushed

what do you call the process of separating minerals by taking advantages of their gravitt differentials thru continuous shaking motion whereby the heavier materials are left behindqnd carried down by

in a screw classifier arrangement, what do you call the screw like mechanism that elevates the sand from the slimes thereby affecting separation

which of the following equipment is traditionally used in washing manufactured sand from the crushing plangs? it aksi separates the washed sand from waste water containing slimes?

which of the following components of chemical grade chromite must be kept as low as possible

what mineral is currently produced vy heritage resources and mining corp at its homonhon mine in eastern samar

which of the following reagents is best used in dissolving gold from finely ground ores through leaching

which of the following smelting process is currently being used by PASAR in smelting copper concentrates

in jaw crusher arangement, what do you call theequipment that removes small rocks that need not to be crushed? the equipment also increases crusher output by segregarting those materials that are already smaller in size than the desired crusher product

in producing metallurgical grade chromite which of the following must be kept as high as possible

which of the following is an economic use of chemical grade chromite

in conventional primary crusher installation what do you call the major component that feed the crusher constantly using a continuous chain with feeder pads similar to the undercarriage of crawler dozers

in crushing plant operations, what do you call that screen equipment that has two separate products

which of the following is one of the many economic uses of refractory chromite

what do you call the process of collecting the copper concentrates or mill tailings in huge circular reservoirs or tanks and allowing the overflow and recovery of excess water for recycling at the same time increasing the density of the slurry to a level ideal for filtering or pumping

in conventional conveyor installation, what do you call that component where the electric motor is qttqched

which of the following mineral is used to manufacture matches

how many products does a triple deck vibrating screen produced

A large mining come unity has a total population of 35,000 including mining employees dependents and other residents if the communal rate is 40 L per capita per day what is the daily water demand of the mining community

How much lead is available in 100 metric tons of or containing 25% galena 2% Cinnabar 6% sphalerite and 3% moisture

Which of the following does not belong to the group

Which of the following crushing equipment is fitted with a cone head and mantle

Which of the following is an economic mineral of iron

Economic mineral of silica

In a conventional belt conveyor arrangement drive motors are often manufactured at high rpm this is translated to a speed options for mechanical belt conveyance by what type of equipment