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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
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
In a certain code language, I love cricket means Liv Da Bin; I love music means Bin Liv Zo; I play music means Zo Bin Na. Which is the word for Cricket in that code language?
Which of the following statement is/are correct? Mohammad Bin Tughlaq created the department of agriculture(Diwani-Amirkohi). Md Bin Tughlaq shifted capital from Devagiri to Delhi in 1326-27. Md Bin Tughlaq introduced token currency of copper and silver. Select the correct code from below.
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 . . . . . . . .
Which of the following statements are correct: 1. Australia is the top Iron ore producer in the world. 2. India is the 4th on a list of top iron ore producers in the world. 3. India does not import iron ore. Select the correct answer from the code given below:
Which of the following is incorrect? a) Pyrolusite is an ore/mineral of Manganese b) Ilmenite is an ore/mineral of Titanium c) Calamine is an  ore/mineral of Copper