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Free download in Water Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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
(22)
Waste water released from _________ are not the sources of bacteria.
[A]
Sanitaria
[B]
Municipalities
[C]
Tanning
[D]
Industries
(23)
Fishes can store more quantity of ___________ in their bodies.
[A]
Mercury
[B]
Bismuth
[C]
Palladium
[D]
Chlorine
(24)
___________ poisoning water in Japan is from fishes.
[A]
Bismuth
[B]
Arsenic
[C]
Antimony
[D]
Palladium
(25)
The organic matter present in the water is of __________ types.
[A]
Two
[B]
Three
[C]
Four
[D]
Five
(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
(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
(30)
The ____________ is an important requirement of the aquatic life.
[A]
Dissolved nitrogen
[B]
Dissolved chlorine
[C]
Dissolved oxygen
[D]
Dissolved methane
31
Helminth in the water causes __________
[A]
Hook worm
[B]
Amoebic dysentery
[C]
Cholera
[D]
Typhoid
32
___________ poisoning water in Japan is from fishes.
[A]
Bismuth
[B]
Arsenic
[C]
Antimony
[D]
Palladium
33
Fishes can store more quantity of ___________ in their bodies.
[A]
Mercury
[B]
Bismuth
[C]
Palladium
[D]
Chlorine
34
Waste water released from _________ are not the sources of bacteria.
[A]
Sanitaria
[B]
Municipalities
[C]
Tanning
[D]
Industries
35
The following unit is not used to measure turbidity of water?
[A]
NTU
[B]
ATU
[C]
JTU
[D]
FTU
36
The water temperature should preferably be less than __ degree Celsius.
[A]
10
[B]
15
[C]
25
[D]
30
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
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
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
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