Related Questions

The receptionist at a veterinary clinic reviewed the office records and found that 3 out of every 8 animals treated at the clinic during the last 4 months were cats. At this rate, how many cats will be treated during the next 12 weeks if a total 288 animals are treated ?
A 108
B 96
C 36
D 24
The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.
A Decreases
B Increases
C Remains constant
D May increase or decrease ; depends on the chemical characteristics of polluted water
A sink contains exactly 12 liters of water. If water is drained from the sink until it holds exactly 6 liters of water less than the quantity of water drained away, how many liters of water were drained away ?
A 2
B 3
C 9
D 6
Muddy water is treated with alum in purification process, it is termed as :
A Emulsification
B Absorption
C Adsorption
D Coagulation
Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.
A SO3
B Cl2
C NH3
D SO2
Polluted water having low BOD are most economically treated in
A Sedimentation tanks
B Oxidation ponds
C Sludge digester
D Clarifier
Maximum permissible residual chlorine in treated water should be __________ mg/litre.
A 0.001 to 0.01
B 02 to 0.3
C 2 to 3
D 5 to 10
A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25% ?
A 4
B 5
C 8
D 30
A mixture of 20 sprit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%
A 2
B 4
C 5
D 6
30 men took a dip in a water tank 20m long and 15m broad on a religious day.If the aveage water displacement of water by a man is 2m3, then the rise in the water level in the tank will be --
A 20 cm
B 50 cm
C 100 cm
D 200 cm

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