Bissoy.com
Doctors Medicines MCQs Q&A

In situ leaching is direct leaching of the ore deposits.

In situ leaching is direct leaching of the ore deposits. Correct Answer True

In situ leaching can be in two ways. It can be the direct leaching of the ore deposits. It can also be the leaching of the residue rocks left behind in the mines after the mining operation. This type of leaching operation employs water circulation through ore deposits and then the collection of the solution.

Related Questions

Which of the following statements are true with respect to iron ore?
I. Limestone and coal are important for smelting iron ore
II. More than 20% of the world iron ore deposits are in India
III. Odisha and Jharkhand top in the production of iron ore
IV. Iran is the largest buyer of Indian iron ore
The following information is provided for an ore deposit:
Number of waste blocks = 10
Number of ore blocks = 5
Volume of each waste block, m3 = 600
Total cost of waste handling per m3 = Rs. 100
Tonnage of each ore block = 400
Total cost of ore handling per ton = Rs. 150
Sale price of ore per ton = Rs. 500
The net cash flow of mining the deposit in lakhs of rupees, is
The question given below consists of a statement, followed by three arguments I, II and III. You have to decide which of the arguments is/are ‘strong’ arguments, is/are ‘weak’ arguments and accordingly choose your answer from the alternatives given below each question. Statement: Over the past five decades, term deposits in banks have emerged as the primary instrument of financial savings for the average Indian after former premier Indira Gandhi embarked on a mission to nationalise the lenders - 14 in the first tranche - on a rainy afternoon in July 1969. Coming with an unsaid sovereign guarantee of sorts, fixed deposits (FDs) seemingly offered investors liquidity - and safety - as nationalisation sought, in part, to arrest the 40-odd bank failures a year.  Now, however, deposits must burnish their allure to retain leadership status in an increasingly crowded financial marketplace that offers choice. Why? Arguments: I. If FDs are giving 7.5% and the effective tax rate is 10%, one gets close to 5-5.2% return. Similarly, in the case of FMP, if the rate is 7.5%, effective taxation comes to 10%, one gets 6.75%. It is higher than the effective returns on bank deposits.  II. People are becoming aware of more asset classes that offer better returns, and the quest for such assets became more pronounced after interest rates fell substantially over the past four years.  III. Savers are looking at mutual funds and provident funds for the higher return. 
Consider the following statements about Iron ore.
1. Iron ore was first discovered in Odisha by PN Bose in 1904.
2. The iron ore deposits of Odisha state occur in five districts including Koraput.
Which of the following statements is/are correct?
Match the following: List - I List - II i. Ore of Pb (Lead) a. Siderite ii. Ore of Fe (Iron) b. Galena iii. Ore of Cu (Copper) c. Philosopher's wool iv. Ore of Zn (Zinc) d. Malachite  
500 kg of ore contained a certain amount of steel. After the first blast furnace process, 200 kg of slag containing 12.5% of steel was removed. The percentage of steel in the remaining ore was found to be 20% more than the percentage in the original ore. How many kg of steel were there in the original 500 kg ore?
An ore block of length 30m and height 20m having an average width of 1.5m with sharp boundary walls is mined with a minimum mining width of 2m. If the tonnage factors are 3 t/m3 for ore, 2 t/m3 for wall rock and average grade of ore is 10%, the diluted grade of ore mined in percent is
The stoping method selected, where ore body is thick veins type ore and walls are strong and steeply dipping ore i.e. footwall steeper than angle of repose of broken ore is . . . . . . . .
In-situ ore of 1.5% Cu got diluted with waste rock of value 0.2% Cu. If the resultant extracted ore has 1.2% Cu. What is the percentage of dilution?
Leaching of uranium ore and gold ore is done in