Water Quiz | Water Objective Type Questions and Answers

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Questions
21 Bacteria and micro organisms present in the water will cause _________ in human and animals.
A Indigestion
B Intestinal tract
C Brain tumour
D Cancer

Answer: Intestinal tract
22 Waste water released from _________ are not the sources of bacteria.
A Sanitaria
B Municipalities
C Tanning
D Industries

Answer: Industries
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23 Fishes can store more quantity of ___________ in their bodies.
A Mercury
B Bismuth
C Palladium
D Chlorine

Answer: Mercury
24 ___________ poisoning water in Japan is from fishes.
A Bismuth
B Arsenic
C Antimony
D Palladium

Answer: Arsenic
25 The organic matter present in the water is of __________ types.
A Two
B Three
C Four
D Five

Answer: Two
26 The decomposition of the matter produces into ___________ and in presence of____________
A Carbondioxide and oxygen
B Oxygen and nitrogen
C Nitrogen and carbondioxide
D Nitrogen and chlorine

Answer: Carbondioxide and oxygen
27 The disappearance of the plants and animals is due to the _________ in water.
A Nitrogen depletion
B Chlorine depletion
C Oxygen depletion
D Ozone depletion

Answer: Oxygen depletion
28 What is the full form of BOD?
A Biochemical oxygen demand
B Biological oxygen demand
C Biometric oxygen deep water
D Biological oxygen deep water

Answer: Biochemical oxygen demand
29 The optimum value in natural water is ________
A 2-4ppm
B 4-7ppm
C 4-6ppm
D None of the above

Answer: 4-6ppm
30 The ____________ is an important requirement of the aquatic life.
A Dissolved nitrogen
B Dissolved chlorine
C Dissolved oxygen
D Dissolved methane

Answer: Dissolved oxygen
31 Helminth in the water causes __________
A Hook worm
B Amoebic dysentery
C Cholera
D Typhoid

Answer: Hook worm
32 ___________ poisoning water in Japan is from fishes.
A Bismuth
B Arsenic
C Antimony
D Palladium

Answer: Arsenic
33 Fishes can store more quantity of ___________ in their bodies.
A Mercury
B Bismuth
C Palladium
D Chlorine

Answer: Mercury
34 Waste water released from _________ are not the sources of bacteria.
A Sanitaria
B Municipalities
C Tanning
D Industries

Answer: Industries
35 The following unit is not used to measure turbidity of water?
A NTU
B ATU
C JTU
D FTU

Answer: ATU
36 The water temperature should preferably be less than __ degree Celsius.
A 10
B 15
C 25
D 30

Answer: 25
37 A technique used to determine the concentration of odour compounds in a sample is known as
A Stripping
B Settling
C Flushing
D Chlorination

Answer: Stripping
38 In filtration, the amount of dissolved solids passing through the filters is
A Difference between total solids and suspended solids
B Sum of total solids and suspended solids
C Independent of suspended solids
D None of the above

Answer: Difference between total solids and suspended solids
39 The Total dissolved solids (TDS) can be reduced by the following method
A Distillation
B Reverse osmosis
C Ion exchange
D All of the above

Answer: All of the above
40 According to The United States Geological Survey, water having less than 1000 ml/litre of total dissolved solids is
A Fresh water
B Slightly saline
C Moderately saline
D Brine water

Answer: Fresh water

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