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What will be the extraction factor of the process of extraction for the first stage of the extraction under the staged counter current process of extraction?
Which of the following among item A and item B are correct?
Item A: Common intention within the meaning of Section 34 of the Penal Code means:
1. Evil intention of many persons to commit the same act
2. Implication of a pre-arranged plan, prior meeting of mind, between all the persons constituting the group
3. A desire of several persons to commit an act without contemplating the consequences
Item B: Within the meaning of section 149 in prosecution of common object of an unlawful assembly's means:
1. In relation to common intention of the group
2. In order to attain the common object
3. In relation to a common object
Select the correct answer:
A system of vertical or nearly vertical openings for transfering ore from a stope to a single delivery point.
100 ml solvent is given us for the extraction. Which of the following extraction will be most effective?
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
In a room-and-pillar stope, bench blasting is conducted using ANFO having density of 800 kg/m3. The specific gravity of rock is 2.5, hole diameter is 100 mm and spacing to burden ratio is 1.3. The charge length of each blast hole is 80% of the hole length. For a desired powder factor of 0.48 kg/tonne, the spacing and burden of the blast pattern in m respectively are
Blasting of stope in VCR method consists of
For a shrinkage stope the following data values are given
A vertical method similar to stope and pillar mining in the supported class is known as . . . . . . . .
In shrinkage stoping the inclination of stope wall should be . . . . . . . .