Related Questions

Toggle Filter আইকনটি-i. Remove filter হিসেবে কাজ করেii. Undo filter হিসেবে কাজ করে iii. Apply filter হিসেবে কাজ করেনিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
In a trickling filter
A Filtration process is used
B Biological action is used
C Neither A nor B
D Both A and B
The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria.
A Anaerobic
B Saphrophytic
C Aerobic
D Parasitic
Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.
A Compressibility
B Molecular weight
C Humidity
D None of these
The width of a rectangular plot was reduced by 30% and the length was reduced by 10%. The size of the new plot is what percent of the original plot?
A 30
B 57
C 63
D 70
The price of a coat in a certain store is tk 500. If the price of the coat is to be reduced by tk 150, by what percent is the price to be reduced?
A 10%
B 15%
C 20%
D 30%
The price of a cycle is reduced by 25% . The new price is reduced by a furthr 20% . The two reductions together are equal to a single reduction of
A 45%
B 35%
C 40%
D 30%
The price of a cycle is reduced by 25%. The new price is reduced by a further 20%. The two reductions together are equal to a single reduction of-
A 45%
B 55%
C 25%
D 40%
When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied
A By pumping system
B By gravitational system
C Both (A) and (B)
D All the above
If two gases have same reduced temperature and reduced pressure, then they will have the same
A Volume
B Mass
C Critical temperature
D None of these

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