Froth Floatation
A mixture of water, pine oil, detergent and powdered ore is taken in a tank A blast of compressed air is blown through the pipe of a rotating agitator to produce froth Sulphide ore particles wetted and coated by pine oil rise up along with the froth (froth being lighter) Gangue part..
Use of septic tanks
Septic tanks should be used for each house especially in small towns and villages. This will reduce the flow of raw municipal sewage and human excreta into river, lake or pool. Rivers, lakes, etc., should not be used for washing purposes and bathing. In this way, wate..
Uses
Hoses and tank linings for the handling and storage of oils and solvents. Lining of vessels used in the manufacture of chemicals. Engine gaskets and other such products that come into contact with oil. Thiokol mixed with oxidizing agents is used as a fuel in..
Figure shows the measured rate of water flow ( in liters per minute ) ..
Figure shows the measured rate of water flow ( in liters per minute ) in to a tank during a 10-min period. Using 10 subintervals in each case, estimate the total amount of water that flows into the tank during this period by using the trapezoidal approximatio..
A water tank is 16 m long, 10 m wide and 10 m deep. It is made of iron..
A water tank is 16 m long, 10 m wide and 10 m deep. It is made of iron, which is 2 m wide. How much length of iron sheet was used in making the tank? => 520 m or 420 m or 470 m or 370 m..
A water tank contained 338.74 liters of water from which 203.45 liters..
A water tank contained 338.74 liters of water from which 203.45 liters of water was used. Find the quantity of water left in the tank. => 135.29 liters or 134.59 liters or 135.99 liters or 135.49 liters..
A pump can fill a tank in 5 hours. Another pump can fill the same tank..
A pump can fill a tank in 5 hours. Another pump can fill the same tank in 9 hours. Find the equation to find how long it will take to fill the tank if both the pumps are used at the same time. Let x represent the number of hours it takes to fill the tank..
A bus travels 26 miles using one gallon of gas. Determine the number o..
A bus travels 26 miles using one gallon of gas. Determine the number of miles the bus can travel, if it has 3 gallons of gas in the tank. => 78 miles or 98 miles or 68 miles or 88 miles..
The residents of each floor of an apartment use 9 kiloliters of water ..
The residents of each floor of an apartment use 9 kiloliters of water per day. How many floors can be served with a water tank of capacity 45 kiloliters? => 9 or 6 or 5 or 405..
A closed iron tank, 16 m. long., 13 m. wide and 4 m. deep, is to be ma..
A closed iron tank, 16 m. long., 13 m. wide and 4 m. deep, is to be made. What should be the length of the iron sheet to be used, if its width is 4 m.? => 256 or 162 m or 832 m or 116 m..
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