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question_answer1)
Out of the following, select those that would help to reduce water pollution. (i) use of sewers for removal of urban waste (ii) use of unleaded petrol in cars (iii) spraying of pesticides on plants (iv) We should not excreate in open.
A)
(i) and (ii) done
clear
B)
(iii) and (iv) done
clear
C)
(i) and (iv) done
clear
D)
All of these done
clear
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question_answer2)
Select the one that is incorrect for vermin processing toilet.
A)
It is a new method and has been recently tested in India. done
clear
B)
It is a novel, low water use toilet that is safe for processing of human waste done
clear
C)
In it the human excreta is treated by round worms and cockroaches done
clear
D)
In it the human excreta is completely converted to vermi-cakes done
clear
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question_answer3)
The international decade for action on "water for life" by United Nations General Assembly was declared on
A)
Jan, 26 done
clear
B)
March, 22 done
clear
C)
April, 14 done
clear
D)
None of these done
clear
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question_answer4)
Sewage refers to waste water that is released by
A)
homes done
clear
B)
industries done
clear
C)
offices done
clear
D)
All of the above done
clear
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question_answer5)
Select the disease that is not caused by improper disposal of sewage.
A)
Cholera done
clear
B)
Typhoid done
clear
C)
Heart attack done
clear
D)
Jaundice done
clear
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question_answer6)
In a waste water treatment plant, after passing the waste water through a grit and sand removal tank, the water is allowed to settle in a large tank. The solids that settle at the bottom of large tank and called
A)
sewage done
clear
B)
sullage done
clear
C)
sludge done
clear
D)
activated sludge done
clear
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question_answer7)
Which plant is suggested for purification of sewage pond water?
A)
waste water plant done
clear
B)
Eucalyptus plant done
clear
C)
urena plant done
clear
D)
None of these done
clear
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question_answer8)
Which of the following group is against the plantation of Eucalyptus trees?
A)
Paper manufacturers done
clear
B)
Wild life protection group done
clear
C)
Environmentalists done
clear
D)
Matches manufacturers done
clear
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question_answer9)
Sewage treatment
A)
is a process of waste water treatment. done
clear
B)
refers to waste water that is released by homes, industries, hospitals etc. done
clear
C)
refers to the rain water that run down the streets during heavy rains. done
clear
D)
All of the above done
clear
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question_answer10)
The impurities present in sewage may consist of
A)
organic substances done
clear
B)
inorganic substances done
clear
C)
Nutrients done
clear
D)
All of the above done
clear
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question_answer11)
Select those which are organic substances present in waste water.
A)
pesticides done
clear
B)
herbicides done
clear
C)
fruit and vegetable waste done
clear
D)
All of the above done
clear
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question_answer12)
Treatment plants
A)
reduce pollutants in waste water to a level where nature can take care of it. done
clear
B)
makes the waste water free of all pollutants done
clear
C)
Both the above are correct done
clear
D)
None of these done
clear
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question_answer13)
The sludge waste originates from
A)
kitchen done
clear
B)
toilets done
clear
C)
industrial organizations done
clear
D)
commercial organizations done
clear
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question_answer14)
In the treatment of waste water, following steps are involved. (i) aeration (ii) nitration (iii) chlorination The correct order of these steps is
A)
(i),(iii),(ii) done
clear
B)
(iii), (ii), (i) done
clear
C)
(i), (ii), (iii) done
clear
D)
(ii), (iii), (i) done
clear
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question_answer15)
When waste water is passed through bar screens in WWTP, it removes
A)
plastic packets done
clear
B)
sand done
clear
C)
grit done
clear
D)
All of the above done
clear
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question_answer16)
Which of the following are removed by use of A skimmer in WWTP?
A)
Oils done
clear
B)
Greases done
clear
C)
Both of these done
clear
D)
None of these done
clear
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question_answer17)
The percentage of water in activated sludge is about
A)
90% done
clear
B)
92% done
clear
C)
95% done
clear
D)
97% done
clear
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question_answer18)
What are the products of waste water treatment system?
A)
sludge done
clear
B)
biogas done
clear
C)
Both of these done
clear
D)
None of these done
clear
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question_answer19)
Liquid waste consisting of suspended impurities is called _____.
A)
sewage done
clear
B)
contaminant done
clear
C)
slurry done
clear
D)
sludge done
clear
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question_answer20)
What is the full form of WWTP?
A)
Waste water travel plant done
clear
B)
Waste water treatment plant done
clear
C)
Waste water therapy plant done
clear
D)
Waste water tropical plant done
clear
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question_answer21)
Water scarcity problem is increasing day by day because of
A)
population growth done
clear
B)
industrial development' done
clear
C)
pollution done
clear
D)
All of the above done
clear
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question_answer22)
We should not throw cooking oil and paint down the drain because
A)
they break the pipe done
clear
B)
they harden and clog the pipe done
clear
C)
they flow through the drain freely done
clear
D)
None of these done
clear
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question_answer23)
Which of the following is a good practice be followed?
A)
Cooking oil and paint should not be thrown down a drain. done
clear
B)
Used tea leaves, solid food and cotton should not be thrown in the drain. done
clear
C)
Chemicals like insecticides should not throw in the drain. done
clear
D)
All of the above done
clear
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question_answer24)
The technique of watering plants by making use of narrow tubing?s which deliver water directly at the base of the plant is
A)
river lift irrigation done
clear
B)
tube wells done
clear
C)
lawn sprinkling done
clear
D)
drip irrigation done
clear
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question_answer25)
Which of the following is a water borne disease?
A)
cholera done
clear
B)
Typhoid done
clear
C)
Jaundice done
clear
D)
All of these done
clear
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question_answer26)
A resource much needed for soil is
A)
septic tank done
clear
B)
vermic processing toilet done
clear
C)
chemical toilet done
clear
D)
composting pit done
clear
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question_answer27)
Sewage is generated from mainly
A)
hospitals done
clear
B)
houses done
clear
C)
factories done
clear
D)
offices done
clear
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question_answer28)
Aeration of water during waste water treatment removes
A)
Bacteria done
clear
B)
Germs done
clear
C)
Human Waste done
clear
D)
Sand done
clear
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question_answer29)
Which process during waste water treatment helps in eliminating germs?
A)
Aeration done
clear
B)
Sedimentation done
clear
C)
Chlorination done
clear
D)
Flocculation done
clear
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question_answer30)
Which of the following diseases caused by drinking contaminated waste?
A)
Pneumonia done
clear
B)
Small Pox done
clear
C)
Malaria done
clear
D)
Cholera done
clear
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question_answer31)
Drain get blocked by
A)
germs and bacteria done
clear
B)
oil and fat done
clear
C)
paints and chemicals done
clear
D)
Both (b) and (c) done
clear
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question_answer32)
Dried _____ is used as manure
A)
sludge done
clear
B)
slury done
clear
C)
sewage done
clear
D)
sand done
clear
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question_answer33)
Which of the following can be used to disinfect water?
A)
Bleaching Powder done
clear
B)
Chlorine tablets done
clear
C)
Both (a) and (b) done
clear
D)
None of these done
clear
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question_answer34)
Water pollution is caused by
A)
washing clothes done
clear
B)
human excreta done
clear
C)
chemicals done
clear
D)
All of the above done
clear
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question_answer35)
Water borne disease is
A)
Anthrax done
clear
B)
Typhoid done
clear
C)
Malaria done
clear
D)
All of the above done
clear
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question_answer36)
The impurities present in sewage are called__.
A)
Contaminants done
clear
B)
Grit done
clear
C)
Organic done
clear
D)
Inorganic done
clear
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question_answer37)
The manholes in a sewage system are located at every ___m.
A)
40-50 done
clear
B)
50-60 done
clear
C)
60-70 done
clear
D)
10-20 done
clear
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question_answer38)
The network of big and small pipes that forms a sewage is called ____
A)
Septic lines done
clear
B)
Clarifier done
clear
C)
Drain done
clear
D)
Sewers done
clear
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question_answer39)
Which of the following trees should be planted along sewage ponds?
A)
Neem done
clear
B)
Eucalyptes done
clear
C)
Peepal done
clear
D)
Banyan done
clear
View Solution play_arrow
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question_answer40)
In vermi-processing toilet the human excreta is treated by
A)
Redworm done
clear
B)
Tapeworm done
clear
C)
Earthworm done
clear
D)
Roundworm done
clear
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question_answer41)
DIRECTIONS: Match Column-I with column II and select the correct answer using the codes given below the columns.
Column-I | Column-II |
(A) Pesticides, herbicides, fruits and vegetable waste etc. | (p) Inorganic waste in waste water |
(B) Nitrates, Phosphates, metals etc. | (q) Organic waste in waste water |
(C) Nitrogen, Phosphorus | (r) Nutrients in waste water |
(D) Cholera causing bacteria | (s) Bacteria in waste water |
A)
A®(p); B® (q); C® (r); D® (s) done
clear
B)
A®(q); B ® (p); C ® (r); D ® (s) done
clear
C)
A®(q); B®(p); C® (s); D®(r) done
clear
D)
A®(p); B®(q); C®(s); D®(r) done
clear
View Solution play_arrow
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question_answer42)
DIRECTIONS: Match Column-I with column II and select the correct answer using the codes given below the columns.
Column-I | Column-II |
(A) Sewage | (p) Suspended impurities present in sewage. |
(B) Contaminants | (q) Phosphorus and Nitrogen |
(C) Nutrients present as suspended impurities in waste water, | (r) Liquid waste which causes water and soil pollution |
(D) Inorganic impurities present in waste water | (s) Phosphates and nitrates |
A)
A\[\to \] (p); B\[\to \] (q); C\[\to \] (r); D\[\to \] (s) done
clear
B)
A\[\to \] (q); B\[\to \] (r); C\[\to \] (s); D\[\to \] (p) done
clear
C)
A\[\to \] (r); B\[\to \] (p); C\[\to \] (q); D\[\to \] (s) done
clear
D)
A\[\to \] (s); B\[\to \] (q); C\[\to \] (p); D\[\to \] (s) done
clear
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question_answer43)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Sewage is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Consider the following waste present in sewage and answer the questions. (i) Animal waste (ii) Fruit and vegetable waste (iii) Nitrates (iv) Phosphates (v) Phosphorus (vi) Nitrogen The organic impurities are:-
A)
(i) and (ii) only done
clear
B)
(i), (ii), (iii) only done
clear
C)
(i) only done
clear
D)
(ii) only done
clear
View Solution play_arrow
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question_answer44)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Sewage is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Consider the following waste present in sewage and answer the questions. (i) Animal waste (ii) Fruit and vegetable waste (iii) Nitrates (iv) Phosphates (v) Phosphorus (vi) Nitrogen The inorganic impurities are: -
A)
(i) and (ii) only done
clear
B)
(i), (ii), (iii) and (iv) only done
clear
C)
(iii) to (vi) done
clear
D)
(v) and (vi) only done
clear
View Solution play_arrow
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question_answer45)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Sewage is a complex mixture containing suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Consider the following waste present in sewage and answer the questions. (i) Animal waste (ii) Fruit and vegetable waste (iii) Nitrates (iv) Phosphates (v) Phosphorus (vi) Nitrogen The nutrients present in impurity in sewage are
A)
(iii), (iv) and (v) done
clear
B)
(i), (ii) and (vi) done
clear
C)
(ii), (iv) and (vi) done
clear
D)
(v) and (vi) done
clear
View Solution play_arrow
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question_answer46)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Treatment of waste water involves physical, chemical and biological processes, which remove physical, chemical and biological matter that contaminates the waste water. In WWTP, in one of the steps, the water is allowed to settle in large tank which is sloped towards the middle. In it impurities settle at the bottom. These settled impurities are called
A)
Sewer done
clear
B)
skimmer done
clear
C)
sludge done
clear
D)
activated sludge done
clear
View Solution play_arrow
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question_answer47)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Treatment of waste water involves physical, chemical and biological processes, which remove physical, chemical and biological matter that contaminates the waste water. The treated water coming out of WWTP
A)
has very low level of organic material and suspended impurities. done
clear
B)
is free of organic material and suspended impurities. done
clear
C)
Both the above are correct done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer48)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Treatment of waste water involves physical, chemical and biological processes, which remove physical, chemical and biological matter that contaminates the waste water. Biogas is one of the products at WWTP. Biogas can be used
A)
as a fuel done
clear
B)
to produce electricity done
clear
C)
Both the above done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer49)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 3 Poor sanitation and contaminated drinking water is a cause of large number of diseases. To improve sanitation, low cost on-site sewage disposal systems are being encouraged. Various water borne diseases are
A)
hepatitis done
clear
B)
meningitis done
clear
C)
cholera done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer50)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 3 Poor sanitation and contaminated drinking water is a cause of large number of diseases. To improve sanitation, low cost on-site sewage disposal systems are being encouraged. Untreated human excreta is a health hazard because it may cause
A)
water pollution done
clear
B)
soil pollution done
clear
C)
Both the above done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer51)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Cleaning of water is a process of removing pollutants before it enters a water body Reason (R): The process of cleaning of water and removel of pollutants from it is called "sewage treatment"
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer52)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Sewage is a liquid waste. Reason (R): The dissolved and suspended impurities present in sewage are known as contaminants.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer53)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The underground network of big and small pipes that carries sewage from point of being produced to the point of disposal is known as sewerage; Reason (R): In sewerage manholes are located at every 30 m to 40 m.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer54)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: We should not consume contaminated water. Reason R: Dirty water contain toxic chemicals and germs that can cause diseases
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer55)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Ozone is used to disinfect water (ii) Chlorine is used to disinfect water
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
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question_answer56)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Sewage is a complex mixture (ii) Sewage is a solid waste
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer57)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Wastes released by houses is called sewage (ii) Waste that originates from kitchen is called sludge
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer58)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Trade wastes originates from houses (ii) Sludge wastes originates from kitchen
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
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question_answer59)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. The diagram below shows some ways in which groundwater can be affected by humans.
Which statement is best supported by the diagram?
A)
Chemicals applied by farmers lower the level of pollution in drinking water. done
clear
B)
Drinking water can become polluted from unsuspected sources. done
clear
C)
Human activities do not affect groundwater. done
clear
D)
Toxic waste is safe if buried below the level of the basements of nearby homes. done
clear
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question_answer60)
Sewage is
A)
waste water that is released by homes, industries, hospitals, offices etc. done
clear
B)
rain water that has run down the street during a storm or heavy rain. done
clear
C)
liquid waste which causes water and soil pollution. done
clear
D)
All the above are correct. done
clear
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question_answer61)
Trade waste, refers to
A)
waste that originates from kitchens done
clear
B)
waste that originates from toilets. done
clear
C)
waste that originates from industrial and commercial organizations. done
clear
D)
All the above. done
clear
View Solution play_arrow
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question_answer62)
Vermi-processing toilet
A)
is a design of toilet in which human excreta is treated by round worm. done
clear
B)
is a design of toilet in which human excreta is treated by earthworm. done
clear
C)
Both the above are correct done
clear
D)
None of these is correct. done
clear
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question_answer63)
The depletion of water table is due to
A)
increased use of water for industrial activities done
clear
B)
increase in use of water for agricultural activities. done
clear
C)
scarcity rainfall done
clear
D)
All of the above done
clear
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question_answer64)
How does increase in populations a cause for depletion of water table?
A)
Requirement of more houses done
clear
B)
Requirement of more food done
clear
C)
Requirement of more roads etc. done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer65)
After passing that through bar screens the waste water goes to a grit and sand removed tank. Here the speed of incoming waste water is decreased
A)
to keep the system under control done
clear
B)
to allow sand, grit and pebbles to settle down. done
clear
C)
to allow foul smell to disappear done
clear
D)
All the above are correct done
clear
View Solution play_arrow
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question_answer66)
The recommended quantity of water for use person per day according to United Nation recommendation is A\[\times \]10 Liters where A is
A)
1 done
clear
B)
3 done
clear
C)
5 done
clear
D)
7 done
clear
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question_answer67)
Effluent is generated mainly from
A)
Industries done
clear
B)
Offices done
clear
C)
Houses done
clear
D)
Hospitals done
clear
View Solution play_arrow
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question_answer68)
Which process can remove dirt and sand from waste water?
A)
Chlorination done
clear
B)
Sedimentation done
clear
C)
Flocculation done
clear
D)
Aeration done
clear
View Solution play_arrow
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question_answer69)
Jaundice affects which organ?
A)
Stomach done
clear
B)
Liver done
clear
C)
Lungs done
clear
D)
Heart done
clear
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question_answer70)
Which process can be used to make sea water fit for drinking?
A)
Filtration done
clear
B)
Boiling done
clear
C)
Chlorination done
clear
D)
Reverse osmosis done
clear
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question_answer71)
By providing clean water and sanitation to the poorest people on the planet, we can reduce poverty and suffering and ensure education for all children. The above words are given by:
A)
UNO done
clear
B)
UNESCO done
clear
C)
WHO done
clear
D)
UNICEF done
clear
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question_answer72)
Which of the following are biodegradable wastes?
A)
Excreta done
clear
B)
Sewage done
clear
C)
Plastic done
clear
D)
Both (a) & (b) done
clear
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question_answer73)
Which of the following are non-biodegradable wastes?
A)
Paper done
clear
B)
Vegetables done
clear
C)
Wood done
clear
D)
Polythene done
clear
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question_answer74)
These choke the drains
A)
Liquid wastes done
clear
B)
Plastic done
clear
C)
Excreta done
clear
D)
All of these done
clear
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question_answer75)
Sewage includes
A)
solid waste that goes down the drains done
clear
B)
Liquid waste that goes down the drains done
clear
C)
Plastics that are stuck in drains done
clear
D)
Both (a) and (b) done
clear
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question_answer76)
This kills the microbes that help to purify water
A)
Paints done
clear
B)
Motor oil done
clear
C)
Medicines done
clear
D)
All of these done
clear
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question_answer77)
By product of water treatment are
A)
Sludge done
clear
B)
Biogas done
clear
C)
Sludge & Biogas done
clear
D)
None of these done
clear
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question_answer78)
Breeding place for mosquito flies which cause diseases are
A)
Oil done
clear
B)
Open drain done
clear
C)
Close tank done
clear
D)
None of these done
clear
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question_answer79)
The organic part of solid material which is removed from sewage includes
A)
Animal excreta done
clear
B)
Vegetable matter done
clear
C)
Human excreta done
clear
D)
All of these done
clear
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question_answer80)
DIRECTIONS: Match column I with column Ii and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Organic waste | (p) Dysentry |
(B) Inorganic waste | (q) Phosphorus |
(C) Nutrient waste | (r) Tea leaves |
(D) Bacteria | (s) Meatals |
A)
(A) \[\to \] (s),(B) \[\to \] (r),(C) \[\to \] (q),(D) \[\to \] (p) done
clear
B)
(A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (p),(D) \[\to \] (q) done
clear
C)
(A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (q),(D) \[\to \] (p) done
clear
D)
(A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (p),(D) \[\to \] (s) done
clear
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question_answer81)
DIRECTIONS: Match column I with column Ii and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Aeration | (p) Chlorien tablets are added |
(B) Chlorination | (q) Passes through layer of sand |
(C) Filtration | (r) Air is bubbled |
A)
(A) \[\to \] (q),(B) \[\to \] (p),(C) \[\to \] (r) done
clear
B)
(A) \[\to \] (p),(B) \[\to \] (q),(C) \[\to \] (r) done
clear
C)
(A) \[\to \] (r),(B) \[\to \] (q),(C) \[\to \] (p) done
clear
D)
(A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (q) done
clear
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question_answer82)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Vermi Processing toilet has been tested in India and has been found to be a novel, low water use toilet. This process is simple and hygienic. What is used to treat the human waste in these toilets?
A)
Chemicals done
clear
B)
Earthworms done
clear
C)
Both (a) and (b) done
clear
D)
None of these done
clear
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question_answer83)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Vermi Processing toilet has been tested in India and has been found to be a novel, low water use toilet. This process is simple and hygienic. What is the product obtained from processing of human excreta?
A)
Cow dung cake done
clear
B)
Vermi cake done
clear
C)
Fruit cake done
clear
D)
None of these done
clear
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question_answer84)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 Vermi Processing toilet has been tested in India and has been found to be a novel, low water use toilet. This process is simple and hygienic. Which of the following is a better housekeeping practice?
A)
Throwing oils down the drain done
clear
B)
Excreting in the open done
clear
C)
Using Vermi toilets done
clear
D)
All of these done
clear
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question_answer85)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 There are various steps involved in the treatment of polluted water before it can be made fit for human consumption. What is the first step involved in treatment of polluted water?
A)
Chlorination done
clear
B)
Aeration done
clear
C)
Filtration done
clear
D)
None of these done
clear
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question_answer86)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 There are various steps involved in the treatment of polluted water before it can be made fit for human consumption. Which is the second step?
A)
Chlorination done
clear
B)
Aeration done
clear
C)
Filtration done
clear
D)
Flocculation done
clear
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question_answer87)
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 There are various steps involved in the treatment of polluted water before it can be made fit for human consumption. Why is chlorine tablet added?
A)
To kill germs done
clear
B)
To remove dirt done
clear
C)
Both (a) and (b) done
clear
D)
None of these done
clear
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question_answer88)
DIRECTIONS: The questions in this segment, consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): In a WWTP, waste water is y? passed through bar screens, where large objects are removed. Reason (R): Dried sludge is used as a manure returning organic matter, water and nutrients to the water
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer89)
DIRECTIONS: The questions in this segment, consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Poor sanitation and contaminated drinking water is the cause of large number of diseases. Reason (R): Where underground sewerage systems and refuse disposal systems are not available, the low cost on-site sanitation system can be adopted.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer90)
DIRECTIONS: The questions in this segment, consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: We should not excrete in the open Reason R: Poor sanitation and contaminated water cause a number of diseases.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer91)
DIRECTIONS: The questions in this segment, consists of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Soft toys, used tea leaves, paints and oils should not be thrown in the drain. Reason R: These wastes choke the drain and do not allow free flow of oxygen thus hampering the degradation process.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer92)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Wastes that originates from industrial and commercial organizations are called sludge. (ii) House waste that comes from kitchen is called food waste. (iii) Sewage waste does not cause water pollution.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
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question_answer93)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Waste water is treated in a sewage treatment plant. (ii) Cleaning of water is a process of removing the pollutants before polluted water is reused. (iii) There are organic as well as inorganic impurities in water.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
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question_answer94)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) The decade 2015-2025 is declared as the international decade for action on "Water for Life" by UN General Assembly (ii) March 25 is celebrated as the World Water Day (iii) In this decade efforts will be made to reduce by half the number of people who do not have access to safe drinking water.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
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question_answer95)
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) The inorganic impurities present in waste water are herbicides, pesticides, oil etc. (ii) The organic impurities are phosphates, metals, nitrates etc. (iii) There are no germs/bacteria present in waste water.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
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question_answer96)
Why are bar screens used?
A)
To remove germs done
clear
B)
To remove sand and grit done
clear
C)
To remove cans, plastics, napkins etc. done
clear
D)
To remove oil and grease done
clear
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question_answer97)
What is the use of skimmer?
A)
It removes sand done
clear
B)
It removes oil and grease done
clear
C)
It helps in settling solid wastes done
clear
D)
It is used as a filter done
clear
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question_answer98)
What are the products of waste water treatment system?
A)
Sludge done
clear
B)
Biogas done
clear
C)
Both a and b done
clear
D)
Vermi cakes done
clear
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question_answer99)
What is clear water known as?
A)
Clarified water done
clear
B)
Polluted water done
clear
C)
Freshwater done
clear
D)
Slurry done
clear
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