InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1651. |
In which year Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant?A. DustB. NoiseC. WaterD. None of the above |
| Answer» Correct Answer - B | |
| 1652. |
Atmosphere of big/metropolitan cities is polluted most byA. Automobile exhausts B. Pesticide residueC. Household wasteD. Radio-active fall -out. |
| Answer» Correct Answer - A | |
| 1653. |
A brief exposure to 150 dB sound mayA. damage ear drumsB. cause permanent impairing hearing abilityC. cause temporary impairing hearing abilityD. Both (a) and (b) |
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Answer» Correct Answer - D A brief exposure to extremely high sound level, 150 dB or more generated by take off of a jet plane or rocket, may damage ear drums, thus permanently impairing hearing ability. |
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| 1654. |
Mention the major cause of air pollution in metro cities. Write any three ways by which it can be reduced. |
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Answer» Vehicular pollution and Industrial pollution. Three ways to check it are- (i) Use of catalytic converters in vehicles. (ii) Use of CNG as an alternative to petrol/diesel. (iii) Application of Euro II norms for vehicles. |
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| 1655. |
Pollution from animal excreta and organic waste from kitchen can be most profitably minimized byA. storing them in underground storage tanksB. using them for producing biogasC. vermicultureD. using them directly as biofertilizers |
| Answer» Correct Answer - B | |
| 1656. |
In India, Air (Prevention and Control of Pollution ) Act came into force in the year 1981, but was amended in the year ____ to include ____ as an air pollutant.A. 1990, noiseB. 1984, particulate matterC. 1987, PAND. 1987, noise |
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Answer» Correct Answer - D The Air (Prevention and Control of Pollution ) Act 1981 deals with the preservation of air quality and the control of air pollution with a concern for the detrimental effects of air. By an amendment in 1987m noise was also recognised as an air pollutant. |
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| 1657. |
With its very large population of vehicular traffic, Delhi is one of the most polluted cities of the world. Which of the following steps were taken by the government to reduce vehicular pollution in Delhi ? (i) Switching over the entire fleet of public transport i.e., buses, autorickshaws, from diesel to CNG (ii) Phasing out of old vehicles (iii) Use of unleaded petrol in vehicles (iv) Use of low sulphur petrol and diesel in vehicles (v) Use of catalytic converters in vehicles (vi) Application of stringent pollution level norms for vehicles such as Euro-II norms, etc.A. (ii) and (iv)B. (ii), (iv) and (v)C. (iv) and (v)D. All of these |
| Answer» Correct Answer - D | |
| 1658. |
What is true about the Euro Iv normsA. It stipulates to control sulphur at 350 ppm in diesel and 150 ppm in petrolB. it stipulates to reduce sulphur levels to 50 ppm in petrol and dieselC. it stipulates to reduce sulphur level to 200 ppm in diesel and petrolD. it stipulates to reduce sulphur levels to 200 ppm in diesel and 100 ppm in petrol. |
| Answer» Correct Answer - B | |
| 1659. |
A : Euro-II norms are framed to reduce the content of CO and aromatic compounds from fuels. R : These compounds lead to reduce visibility and carboxyhemoglobin formation.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion & Reason are ture but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statements, then mark (4). |
| Answer» Correct Answer - D | |
| 1660. |
Which of the following statements are incorrect regarding the Euro II norms ?A. It stipulates that sulphur be controlled at 350 ppm in dieselB. It stipulates that sulphur be controlled at 150 ppm in petrol.C. Aromatic hydrocarbons are to be contained at 42 % of the concerned fuel.D. None of these |
| Answer» Correct Answer - D | |
| 1661. |
Euro III norms stipulate that sulphur be controlled at _____ ppm in diesel and ppm in petrol.A. 350,150B. 150,350C. 350,250D. 150,250 |
| Answer» Correct Answer - A | |
| 1662. |
The major source of pollution upto `80%` of total air pollution in metroplitan cities isA. automobiles (Traffic) /TransportationB. coal based industriesC. pesticidesD. radioactivity and noise |
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Answer» Correct Answer - A Correct option is (A) automobile(traffic)/ transportaion. The major cause of air pollution happens due to vehicular exhaust containing the oxides of carbon, nitrogen, sulphur and particulate matter. |
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| 1663. |
Major air pollutant isA. `CO_(2)`B. `N_(2)`C. `SO_(2)`D. `CO` |
| Answer» Correct Answer - D | |
| 1664. |
Assertion: Euro II norms are framed to reduce the content of CO and aromatic compounds from fuels. Reason: These compounds lead to reduced visibility and carboxyhemoglobin formation.A. If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).B. If both Assertion and Reason are true but the reason is not the correct explanation of the assertion, then mark (2).C. If Assertion is true but Reason is false, then mark (3).D. If both Assertion and Reason are false, then mark (4). |
| Answer» Correct Answer - D | |
| 1665. |
Urinary bladder is absent inA. FishesB. SankesC. CrocodilesD. All the above |
| Answer» Correct Answer - D | |
| 1666. |
Bat , Whale and Human share the following traitA. HairB. PlacentaC. NocturnalD. Position of mammary glands |
| Answer» Correct Answer - B | |
| 1667. |
Population meansA. All the animals of a placeB. All the animals and plants found in an areaC. Human beings living in an areaD. Animals/plants of a species living in a specific area |
| Answer» Correct Answer - D | |
| 1668. |
Shifting cultivation in India is calledA. SawaniB. JhumC. HardiD. All the above |
| Answer» Correct Answer - B | |
| 1669. |
Migration isA. Outward movement of individualsB. Inward movement of individualsC. Two -way departure and return of all the individualsD. Starvation bassed mortality |
| Answer» Correct Answer - C | |
| 1670. |
Ozone layer occurs inA. IonoshereB. ThermosphereC. StraosphereD. Troposphere |
| Answer» Correct Answer - C | |
| 1671. |
Mimicry is useful forA. ConcealmentB. ProtectionC. PredationD. Both B and C |
| Answer» Correct Answer - A | |
| 1672. |
Wuchireria belong to phylumA. CoelenterataB. AnnelidaC. ArthropodaD. Nemathelminthes |
| Answer» Correct Answer - D | |
| 1673. |
Human population showsA. J- shaped growth curveB. Z- shaped growth curveC. S-shaped growth curveD. All the above |
| Answer» Correct Answer - C | |
| 1674. |
In biotic community, the most imporatant factor for survival of an animal isA. Day lengthB. Soil moistureC. Green foodD. Predators |
| Answer» Correct Answer - C | |
| 1675. |
Frequency in biotic community isA. AbundanceB. Degree of dspersionC. DominanceD. Physiognomy |
| Answer» Correct Answer - B | |
| 1676. |
"Let no one species encroach over the right and privileges of other species" is the stanza fromA. Atharva VedaB. Kautilya ArthashastraC. Isha UpanishadD. Bhagvat Gita |
| Answer» Correct Answer - C | |
| 1677. |
Most stable ecosystem isA. ForestB. MountainC. DesertD. Ocean |
| Answer» Correct Answer - D | |
| 1678. |
What fraction of assimilated energy is used in respiration by the herbivores ?A. 0.2B. 0.3C. 0.4D. 0.8 |
| Answer» Correct Answer - B | |
| 1679. |
(A) : Primary productivity depends on the plant species inhabiting a particular area. (R) : The annual net primary productivity of our biosphere is about 170 billion tons of organic matter.A. If both (A) and (R) are true but (R) is not the correct explanation of (A).B. If both (A) and (R) are true and (R) is the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - B | |
| 1680. |
Physical variables of water pollution include …………A. acidityB. pale colourC. bad tasteD. Both (b) and (c) |
| Answer» Correct Answer - D | |
| 1681. |
Bad taste and colour of the water bodies of tanks, ponds, etc. is due toA. acids and greaseB. free chlorineC. fatsD. starch |
| Answer» Correct Answer - A | |
| 1682. |
Increase in the BOD of water reservoir is due toA. increase in the dissolved `O_(2)` conc.B. decrease in the dissolved `O_(2)` conc.C. maintenance of dissolved `O_(2)` conc. at the same levelD. no effect on dissolved `O_(2)` conc. |
| Answer» Correct Answer - B | |
| 1683. |
A highly toxic photochemical oxidant is PAN, i.e…. |
| Answer» Correct Answer - Peroxyacyl nitrate; | |
| 1684. |
A secondary pollutant isA. `O_(3)`B. COC. `CH_(4)`D. Pb. |
| Answer» Correct Answer - A | |
| 1685. |
A colourless, nonirritant , highly toxic gas that impairs respiration isA. `SO_(2)`B. `NO_(2)`C. `CO_(2)`D. CO. |
| Answer» Correct Answer - D | |
| 1686. |
Lead pollution in Indian cities had been mainly due toA. lead pencilsB. batteriesC. automobilesD. electronic gadgets. |
| Answer» Correct Answer - C | |
| 1687. |
Which will not cause atmospheric pollution ?A. `SO_(2)`B. `CO_(2)`C. COD. `H_(2)`. |
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Answer» Correct Answer - D `CO_(2)` has little pollution value at concentration present in air. It is more of a green houses gas. Rather in excess found at ground level, `CO_(2)` is useful for higher level of photosynthesis. It is more common in soil where it inhibits root growth. |
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| 1688. |
Pollutants likely to deplete ozone layers isA. COB. nitrogen oxidesC. ChloroflurocarbonsD. Both B and C |
| Answer» Correct Answer - D | |
| 1689. |
Ozone isA. harmful in the upper atmosphereB. beneficial in the upper atmosphereC. beneficial in the lower atmosphereD. harmful in the upper atmosphere and beneficial in the lower atmosphere |
| Answer» Correct Answer - B | |
| 1690. |
Maximum atmospheric `NO_(2)` pollution is found inA. Baroda/VadodraB. ChennaiC. NagpurD. Mumbai. |
| Answer» Correct Answer - A | |
| 1691. |
Acid rain is caused byA. Excess production of coal gasB. excess releases of `CO_(2)` due to increasing combustion and respirationC. Excess releases of `SO_(2)` and `NO_(2)` from burning fossils fuelsD. Excess production of gaseous hydrocarbons. |
| Answer» Correct Answer - C | |
| 1692. |
Freon isA. Ferrous sulphide pollutantB. ChloroflurocarbonsC. Iron containing polycyclic hydrocarbonsD. Metal fluoride. |
| Answer» Correct Answer - B | |
| 1693. |
The destruction of the ozone layer is most directly linked to theA. destruction of tropical rain forestsB. release of Chlorofluorocarbons (CFCs) into the atmsophereC. decrease in the production of ozone precursors by chemical production plantsD. global warming |
| Answer» Correct Answer - B | |
| 1694. |
Which of the the following process does maximum destruction of ozoneA. OH systemB. `N_(2)O` systemC. `CFCl_(2)` systemD. `CF_(2)Cl_(2)` system |
| Answer» Correct Answer - B | |
| 1695. |
`SO_(2)` pollution is indicated by destruction ofA. ClimbersB. LichensC. MossesD. Grasses. |
| Answer» Correct Answer - B | |
| 1696. |
What shall be the effect of destruction of wildlife?A. Wild gene of disease resistance will not be obtainedB. Soil erosionC. FloodsD. Greenhouse effect |
| Answer» Correct Answer - A | |
| 1697. |
Ecological backlash (or ecological boomerang) isA. Heat emission due to bomb explosionB. Production of useful ecological effect by a previously useful chemicalC. Formation of secondary pollutant from the reaction of primary pollutantsD. Production of adverse ecological effect by a previously useful chemical |
| Answer» Correct Answer - D | |
| 1698. |
In 1984 the Bhopal gas tragedy took place because methyl isocyanate reacted with:A. Reacted with ammoniaB. Reacted with `CO_(2)`C. Reacted with waterD. Reacted with DDT |
| Answer» Correct Answer - C | |
| 1699. |
In 1984 the Bhopal gas tragedy took place because methyl isocyanate reacted with:A. Reacted with DDTB. Reacted with ammoniaC. Reacted with `CO_(2)`D. Reacted with water |
| Answer» Correct Answer - D | |
| 1700. |
In 1984, Bhopal gas tragedy was caused due to leakage ofA. Potassium isocyanateB. Methyl isocyanateC. Carbon monoxideD. None of these |
| Answer» Correct Answer - B | |