McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: All India Pre Medical Test (AIPMT) .
Chapters
| 1. |
Pollution is any undesirable change in physical, chemical and biological characteristics of. |
| A. | Land |
| B. | Soil |
| C. | Air and Water |
| D. | All of these |
| Answer» D. All of these | |
| 2. |
To protect and improve the quality of our environment which act was passed and in Which year? |
| A. | The environment act 1986 |
| B. | The environment act 1988 |
| C. | The Air (Prevention and control of pollution) act 1981 |
| D. | The Water (Prevention and control of pollution) act 1974 |
| Answer» A. The environment act 1986 | |
| 3. |
What is the effect of air pollution on living organisms? |
| A. | Reduce growth and yield of crops |
| B. | Cause premature death of plants |
| C. | Premature leaf fall |
| D. | Both A and B |
| Answer» D. Both A and B | |
| 4. |
Which gas is responsible for increase in atmospheric temperature? |
| A. | O2 |
| B. | CO2 |
| C. | SO2 |
| D. | CO |
| Answer» B. CO2 | |
| 5. |
99% of SPM in the exhaust of thermal power plant can be separated by.. . |
| A. | Electrostatic precipitator |
| B. | Solvents |
| C. | Scrubber |
| D. | Chimney |
| Answer» D. Chimney | |
| 6. |
In an Electrostatic precipitators the velocity of air blown between the plates must be. |
| A. | Low |
| B. | High |
| C. | Moderate |
| D. | Very high |
| Answer» A. Low | |
| 7. |
The Scrubber is used to remove gases like… |
| A. | SO2 |
| B. | NO2 |
| C. | CO2 |
| D. | SO3 |
| Answer» A. SO2 | |
| 8. |
Particulate matter of which size causes greatest harm to human health? |
| A. | 2.5 micrometer or less in diameter |
| B. | More than 2.5 micrometer |
| C. | More than 3.5 micrometer |
| D. | Less than 3.5 micrometer |
| Answer» A. 2.5 micrometer or less in diameter | |
| 9. |
Which type of damage can be caused by Particulate matter of 2.5 micrometer or less in diameter to human health? |
| A. | Breathing and respiratory symptom |
| B. | Inflammation and damage to lungs |
| C. | Premature death of an individual |
| D. | All of these |
| Answer» D. All of these | |
| 10. |
Which is the main cause of atmospheric pollution in major cities? |
| A. | Industrialization |
| B. | Noise |
| C. | Automobiles |
| D. | Dust particles and SPM |
| Answer» C. Automobiles | |
| 11. |
Which catalyst should be fitted into filters in order to reduce emission of poisonous Gases? |
| A. | Selenium |
| B. | Rhodium |
| C. | Magnesium |
| D. | Manganese |
| Answer» B. Rhodium | |
| 12. |
Which metal is the main air pollutant in metro cities? |
| A. | Lead |
| B. | Copper |
| C. | Magnesium |
| D. | Iron |
| Answer» A. Lead | |
| 13. |
Which catalyst converts unburnt hydrocarbons into CO2 andH2O? |
| A. | Platinum-Palladium |
| B. | Platinum-Chloride |
| C. | Palladium- Chloride |
| D. | Lead |
| Answer» A. Platinum-Palladium | |
| 14. |
What is the effect of catalytic converter on carbon monoxide and nitrogen oxide of exhaust? |
| A. | Converts them into CO2 andH2O |
| B. | Converts them into CO2 andNitrogen gas |
| C. | Converts them into CO2 andNH4 |
| D. | It converts them into CO2 andNO2 |
| Answer» B. Converts them into CO2 andNitrogen gas | |
| 15. |
In which year noise was also included as an air pollutant? |
| A. | 1981 |
| B. | 1987 |
| C. | 1986 |
| D. | 1984 |
| Answer» B. 1987 | |
| 16. |
Sound waves of_____ decibels causes damage to eardrum or permanently impair hearing? |
| A. | 150db or more |
| B. | 120db or more |
| C. | More than 80db |
| D. | 110db |
| Answer» A. 150db or more | |
| 17. |
Which type of pollution causes altered breathing pattern, increased heartbeats and sleeplessness? |
| A. | Noise pollution |
| B. | soil pollution |
| C. | Radioactive pollution |
| D. | Thermal pollution |
| Answer» A. Noise pollution | |
| 18. |
According to 1990s survey which city ranked 4th among the 41 most polluted cities of the world? |
| A. | Ankleshwar |
| B. | Delhi |
| C. | Japan |
| D. | China |
| Answer» B. Delhi | |
| 19. |
Name the metropolitan city leading the country in its levels of air pollution. |
| A. | Ankleshwar |
| B. | Delhi |
| C. | Chennai |
| D. | Bangalore |
| Answer» B. Delhi | |
| 20. |
Which is the drastic change seen in Delhi public transport after 2002? |
| A. | All the buses run by CNG |
| B. | Use of unleaded petrol |
| C. | Use of LPG in buses |
| D. | All the buses run by methanol |
| Answer» A. All the buses run by CNG | |
| 21. |
Which is correct according to EURO II norms? |
| A. | Sulphur can be controlled at 350ppm in diesel and 150ppm in petrol |
| B. | Sulphur can be controlled at 150ppm in petrol |
| C. | Lead can be controlled at 350ppm in diesel |
| D. | Lead can be controlled at 150ppm in petrol |
| Answer» A. Sulphur can be controlled at 350ppm in diesel and 150ppm in petrol | |
| 22. |
Which harmless gases are produced by smokes stakes of thermal power plant and smelters? |
| A. | N2, O2 |
| B. | CO2 |
| C. | CO, N2 |
| D. | SO2 |
| Answer» A. N2, O2 | |
| 23. |
For reducing vehicular pollution which measures are taken by Delhi government? |
| A. | Phasing out old vehicles |
| B. | Use of unleaded and low sulphur petrol and diesel |
| C. | Use of catalytic converter in vehicles |
| D. | All of these |
| Answer» D. All of these | |
| 24. |
In which cities Bharat stage II is applied from 1st april’2005? |
| A. | Delhi, Mumbai, Chennai, Baroda, Surat |
| B. | Delhi, Mumbai, Kanpur, Baroda, Surat |
| C. | Delhi, Mumbai, Chennai, Baroda, Pune |
| D. | Mumbai,Pune,Bangalore,Surat,Ahmedabad |
| Answer» D. Mumbai,Pune,Bangalore,Surat,Ahmedabad | |
| 25. |
A substantial fall in the level of which gases have been found between1997 to2005 in Delhi? |
| A. | CO2,SO2 |
| B. | CO2,CO,SO2 |
| C. | CO2,SO2 ,NO2 |
| D. | CO2,CO,CFC |
| Answer» A. CO2,SO2 | |
| 26. |
To safeguard our water resource the amendment was passed in the year. |
| A. | 1974 |
| B. | 1981 |
| C. | 1986 |
| D. | 1987 |
| Answer» A. 1974 | |
| 27. |
Which chemical of petrol inactivates the catalysts of filter for reducing emission of poisonous gases? |
| A. | Lead |
| B. | Rhodium |
| C. | Straunsium |
| D. | Iron |
| Answer» A. Lead | |
| 28. |
Which colloidal material is seen in domestic sewage? |
| A. | Sand and silt |
| B. | Fecal material and bacteria |
| C. | Sodium and calcium |
| D. | Phosphorus |
| Answer» B. Fecal material and bacteria | |
| 29. |
What happens to the O2 level and BOD of river water at sewage discharge point? |
| A. | Sharp decline in O2 level and rise in BOD |
| B. | O2 level and BOD both increases |
| C. | No change in BOD but O2 level increases |
| D. | No change in O2 level but BOD increases |
| Answer» A. Sharp decline in O2 level and rise in BOD | |
| 30. |
What is the reason for mortality of fish in water body? |
| A. | Biodegradation of organic matter by microbes |
| B. | Due to algal bloom |
| C. | Due to decrease in BOD |
| D. | a and b both |
| Answer» A. Biodegradation of organic matter by microbes | |
| 31. |
Which plant is known as ‘Terror of Bengal’? |
| A. | Chara |
| B. | Wulffia |
| C. | Hydrilla |
| D. | Eichhornia |
| Answer» D. Eichhornia | |
| 32. |
Which is world’s most problematic aquatic weed? |
| A. | Chara |
| B. | Wulffia |
| C. | Hydrilla |
| D. | Eichhornia |
| Answer» D. Eichhornia | |
| 33. |
Which compound used in refrigerator is a source of chlorine |
| A. | Freon |
| B. | HFC |
| C. | BHC |
| D. | None |
| Answer» A. Freon | |
| 34. |
What is biological magnification of DDT in large size fish eating birds? |
| A. | 25ppb |
| B. | 25ppm |
| C. | 2.5ppm |
| D. | 0.25ppm |
| Answer» B. 25ppm | |
| 35. |
By which method large number of particles of pollutants are separated? |
| A. | Cyclone collector |
| B. | Porous filter |
| C. | Electrostatic precipitator |
| D. | By using solvent |
| Answer» C. Electrostatic precipitator | |
| 36. |
Which of the following is not responsible for pollution? |
| A. | Wood |
| B. | SO2 |
| C. | Unsaturated carbon |
| D. | Solar energy |
| Answer» D. Solar energy | |
| 37. |
The population of eagles and hawks is declining because of, |
| A. | Food scarcity |
| B. | game lovers |
| C. | Harmful effects of pesticides |
| D. | Very few dead animals are found in fields |
| Answer» C. Harmful effects of pesticides | |
| 38. |
BOD of a river was found to be very low, this means the water |
| A. | Was clean |
| B. | Was polluted |
| C. | Contains algae |
| D. | Contains other dissolved minerals |
| Answer» A. Was clean | |
| 39. |
More pollution loads in lake, no self purification because. |
| A. | There is no O2 to sustain microbial activity |
| B. | No sunlight available |
| C. | Microbes die |
| D. | Pollutants settles down at the bottom |
| Answer» A. There is no O2 to sustain microbial activity | |
| 40. |
Warmth on the surface of the earth is due to |
| A. | Solar radiation |
| B. | Green house effect |
| C. | Geothermal energy |
| D. | All above |
| Answer» B. Green house effect | |
| 41. |
Thinning of eggshell and their premature breaking is due to |
| A. | Eutrophication |
| B. | Global warming |
| C. | Green house effect |
| D. | Biological magnification |
| Answer» D. Biological magnification | |
| 42. |
Aging of lake is accelerated by |
| A. | Cultural Eutrophication |
| B. | Biological magnification |
| C. | Biological accumulation |
| D. | Algal bloom |
| Answer» A. Cultural Eutrophication | |
| 43. |
Which chemicals increase growth of aquatic organism? |
| A. | Nitrogen and phosphoru |
| B. | Calcium and iron |
| C. | Nitrogen and calcium |
| D. | Nitrogen and iron |
| Answer» A. Nitrogen and phosphoru | |
| 44. |
Arrange the following statements with reference to accelerated eutrophication in proper manner.
|
| A. | p,q,r,s, |
| B. | r,s,q,p |
| C. | r,s,p,q |
| D. | s,r,p,q |
| Answer» C. r,s,p,q | |
| 45. |
Give full form of FOAM. |
| A. | Friends of Arcata Marsh |
| B. | Friends of Arctic Marsh |
| C. | Friends of Antarctic Marsh |
| D. | Foam of Arcata Marsh |
| Answer» A. Friends of Arcata Marsh | |
| 46. |
In which cities Ecosan toilets are working? |
| A. | Kerala and Srilanka |
| B. | Shrinagar and Kerala |
| C. | Kullu and Srilanka |
| D. | Tamilnadu and Kerala |
| Answer» A. Kerala and Srilanka | |
| 47. |
Recycling of e-waste is done in developing countries like… |
| A. | China, India, Pakistan |
| B. | India, Pakistan Shrilanka |
| C. | China, Pakistan, Bangaladesh |
| D. | China, India, Shrilanka |
| Answer» A. China, India, Pakistan | |
| 48. |
Name the metals recovered during recycling process of e-waste. |
| A. | Gold, Nickle, Copper, Silicon |
| B. | Gold, Copper, Silver, Magnecium |
| C. | Gold, Silver, Copper, Selenium |
| D. | Nickle, Copper, Silicon Silver |
| Answer» A. Gold, Nickle, Copper, Silicon | |
| 49. |
Increase in the concentration of a nonbiodegradable substance of various tropic level is called |
| A. | Eutrophication |
| B. | Global warming |
| C. | Biological bloom |
| D. | Biological magnification |
| Answer» D. Biological magnification | |
| 50. |
Deforestation results in |
| A. | Change in climatic condition |
| B. | Reduce rain fall |
| C. | Loss of biodiversity |
| D. | All of these |
| Answer» D. All of these | |
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