MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is high pressure area with sinking air also known as? |
| A. | Cyclone |
| B. | Anti-cyclone |
| C. | Eddy zone |
| D. | Richardson zone |
| Answer» C. Eddy zone | |
| 2. |
Oxides of nitrogen are second most abundant |
| A. | Solid waste pollutants |
| B. | Photochemical smog |
| C. | Industrial pollutants |
| D. | Air pollutants |
| Answer» E. | |
| 3. |
What does sulphur and nitrogen form with water in atmosphere ? |
| A. | Snow |
| B. | Rain |
| C. | Wet Deposition |
| D. | Air pollution |
| Answer» D. Air pollution | |
| 4. |
What does CNC stand for in the context of aerosol particles? |
| A. | Cloudy nucleic condensation |
| B. | Condensation nucleus counter |
| C. | Chemical nucleic coagulation |
| D. | Cloudy nucleic coagulation |
| Answer» C. Chemical nucleic coagulation | |
| 5. |
Mosses may also kills 'mycorrihizal fungi' that help trees to absorb |
| A. | Air |
| B. | Nutrients |
| C. | Water |
| D. | Nitrates |
| Answer» C. Water | |
| 6. |
Which natural mechanism is very important in removing particulate from atmosphere? |
| A. | Gravitational Settling |
| B. | Dispersion |
| C. | Flocculation |
| D. | Self cleansing |
| Answer» B. Dispersion | |
| 7. |
Lakes which are located downwind from major industrial centers, vulnerable to |
| A. | Eutrophication |
| B. | Acid Deposition |
| C. | Air pollution |
| D. | Urbanization |
| Answer» C. Air pollution | |
| 8. |
Which of the following plants is extremely sensitive towards sulphur dioxide? |
| A. | Onion |
| B. | Potato |
| C. | Corn |
| D. | Tomato |
| Answer» E. | |
| 9. |
Which particle ranges from 1 to 1000 um in diameter ? |
| A. | Smoke |
| B. | Dust |
| C. | Fumes |
| D. | Spray |
| Answer» C. Fumes | |
| 10. |
Which of the following pollutants is the major contributor to photochemical smog? |
| A. | Peroxynitrates |
| B. | Hydroperoxides |
| C. | Nitrogen dioxide |
| D. | Ozone |
| Answer» E. | |
| 11. |
Aerosols contribute to global warming. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 12. |
Glass containers are generally not preferred for sampling rain water. Why? |
| A. | Glass containers are expensive |
| B. | Glass containers are not easy to maintain |
| C. | Glass containers affect the pH of the rain water |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 13. |
Which of the following scattering phenomena is responsible for the blue colour of the sky? |
| A. | Mie scattering |
| B. | Diffraction |
| C. | Rayleigh scattering |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 14. |
Greater the Air Quality Index of a region, more polluted is the air. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 15. |
SO₂ is converted to sulphuric acid in presences of |
| A. | Oxygen and Moisture |
| B. | Carbon dioxide |
| C. | Water and Oxygen |
| D. | Air and sunlight |
| Answer» B. Carbon dioxide | |
| 16. |
Rate of temperature changes in atmosphere is known as: |
| A. | ELR |
| B. | Lapse rate |
| C. | Environmental Lapse Rate |
| D. | RLR |
| Answer» C. Environmental Lapse Rate | |
| 17. |
At what concentration can the taste and smell of sulphur dioxide be detected? |
| A. | 1000-2000ppm |
| B. | 11-30ppm |
| C. | 500-700ppm |
| D. | 0.1-0.3ppm |
| Answer» E. | |
| 18. |
Acid deposition reacts with limestone, causing: |
| A. | Damage to paints |
| B. | Deterioration of building materials |
| C. | Deterioration of textile fibers |
| D. | fading and shaping |
| Answer» C. Deterioration of textile fibers | |
| 19. |
What does the abbreviation VOC stand for? |
| A. | Versatile Oxygenated Compounds |
| B. | Volatile Oxygenated Compounds |
| C. | Volatile Organic Carbons |
| D. | Volatile Organic Compounds |
| Answer» E. | |
| 20. |
What does PAH stand for in terms of organic chemistry? |
| A. | Polynuclear Aromatic Hydrocarbons |
| B. | Polyethylene Acetic Hydride |
| C. | Polycyclic Acetic Hydrocarbons |
| D. | Polynuclear Aromatic Hydrides |
| Answer» B. Polyethylene Acetic Hydride | |
| 21. |
'VOCs' stands for |
| A. | Volcanic organic compounds |
| B. | Volatile Organic compounds |
| C. | Valuable organic compounds |
| D. | Voltage organic compounds |
| Answer» C. Valuable organic compounds | |
| 22. |
What is 'pH' of fog down wind ? |
| A. | 1.7 |
| B. | 1 |
| C. | 4 |
| D. | 2 |
| Answer» B. 1 | |
| 23. |
Which of the following devices is NOT used to control particulate emissions? |
| A. | Electrostatic precipitator |
| B. | Bag filters |
| C. | Catalytic converters |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 24. |
Pesticides also contribute to air pollution along with polluting underground reservoirs. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 25. |
Which is the major source for sulphur dioxide? |
| A. | Volcanic eruptions |
| B. | Coal and crude oil combustion |
| C. | Burning of petrol |
| D. | Sewage treatment process |
| Answer» C. Burning of petrol | |
| 26. |
Bathe spruce and fir trees on mountains are more acidic than |
| A. | SO₂ |
| B. | Lime juice |
| C. | Vinegar |
| D. | NO₂ |
| Answer» D. NO₂ | |
| 27. |
Which group of hydrocarbons contains alkenes and alkynes? |
| A. | Aromatics |
| B. | Aliphatic |
| C. | Natural |
| D. | Artificial |
| Answer» C. Natural | |
| 28. |
What is 'PH' of rainwater ? |
| A. | 5.7 |
| B. | 9 |
| C. | 4 |
| D. | 3 |
| Answer» B. 9 | |
| 29. |
Which place in India receives the highest annual rainfall? |
| A. | Mawsynram |
| B. | Cherrapunji |
| C. | Siju |
| D. | Phyllut |
| Answer» B. Cherrapunji | |
| 30. |
Which aliphatic hydrocarbons is highly active? |
| A. | Alkynes |
| B. | Alkenes |
| C. | Alkenes |
| D. | Olefins |
| Answer» B. Alkenes | |
| 31. |
What are symptoms of carbon monoxide exposure ? |
| A. | Loss of consciousness |
| B. | Memory problems |
| C. | Vomiting |
| D. | Both a and b |
| Answer» E. | |
| 32. |
Strong acids easily ionize |
| A. | Chlorine ions |
| B. | Hydrogen ions |
| C. | Argon ions |
| D. | Nitrogen ions |
| Answer» C. Argon ions | |
| 33. |
Proportion of CO consumption consists of basic components: |
| A. | The leaf boundary layer |
| B. | The stomata |
| C. | Radiation exchange |
| D. | All of Above |
| Answer» E. | |
| 34. |
Air borne substances causes allergies are known as |
| A. | Lung disease |
| B. | Asthma |
| C. | Flocculation |
| D. | Aeroallergens |
| Answer» E. | |
| 35. |
Oxides of sulphur are 'corrosive' and |
| A. | Non-combustible gas |
| B. | Poisonous gas |
| C. | Non poisonous gas |
| D. | All of above |
| Answer» C. Non poisonous gas | |
| 36. |
Subsidence inversion is caused by sinking of air in |
| A. | Anticyclones |
| B. | Cyclones |
| C. | Hurricanes |
| D. | Typhoons |
| Answer» B. Cyclones | |
| 37. |
What is a “tetroon” in the field of meteorology? |
| A. | A tool used to study wind patterns |
| B. | A tool used to study pressure variations |
| C. | A tool used to study temperature deviations |
| D. | A tool used to study humidity |
| Answer» B. A tool used to study pressure variations | |
| 38. |
If ELR exceeds ALR, environmental lapse rate, would be considered as: |
| A. | ELR |
| B. | Lapse rate |
| C. | Super adiabatic |
| D. | Adiabatic lapse rate |
| Answer» D. Adiabatic lapse rate | |
| 39. |
Which pollution is considered as major environmental risk factor on environment? |
| A. | Visual pollution |
| B. | Therml pollution |
| C. | Soil pollution |
| D. | Air Pollution |
| Answer» E. | |
| 40. |
Which chronic poisoning causes paralysis and difficulty in breathing? |
| A. | Fluorine Poisoning |
| B. | Lead Poisoning |
| C. | NOx |
| D. | SOx |
| Answer» C. NOx | |
| 41. |
Particles of what size are filtered by the nasal passage? |
| A. | >10micrometre |
| B. | >500 micrometre |
| C. | >1 mm |
| D. | >5 micrometre |
| Answer» B. >500 micrometre | |
| 42. |
Air pollution damages to building materials by |
| A. | Acid deposition |
| B. | Corrosion |
| C. | Disasters |
| D. | Fire |
| Answer» C. Disasters | |
| 43. |
Which of the following is a viable particulate? |
| A. | Smoke |
| B. | Mist |
| C. | Dust |
| D. | Moulds |
| Answer» E. | |
| 44. |
What is an example of acid? |
| A. | HCl |
| B. | Cl |
| C. | NO₂ |
| D. | SO₂ |
| Answer» B. Cl | |
| 45. |
Plume refers to path of the |
| A. | Liquid effluents |
| B. | Gaseous effluents |
| C. | Particulate matters |
| D. | Air pollution |
| Answer» C. Particulate matters | |
| 46. |
What are the effects of sulphur dioxide on the human body? |
| A. | It causes the malfunction of liver and kidney |
| B. | It breaks down body’s immunity towards particulate matter and bacteria |
| C. | It causes blood cells to dilate thereby affecting blood flow through the circulatory system |
| D. | All of the mentioned |
| Answer» C. It causes blood cells to dilate thereby affecting blood flow through the circulatory system | |
| 47. |
Which plume does occur when there is a stronger lapse rate above a surface inversion? |
| A. | Fanning |
| B. | Looping |
| C. | Trapping |
| D. | Lofting |
| Answer» E. | |
| 48. |
What reduces capability of blood to carry oxygen? |
| A. | Hemodilution |
| B. | Anemia |
| C. | Thalassemia |
| D. | All of Above |
| Answer» D. All of Above | |
| 49. |
Which of the following plants aid as an indicator to ozone pollution? |
| A. | Tomato |
| B. | Tobacco |
| C. | Watermelon |
| D. | All of the mentioned |
| Answer» E. | |
| 50. |
Which type of plume is emitted under extreme inversion conditions? |
| A. | Conning |
| B. | Fanning |
| C. | Looping |
| D. | Trapping |
| Answer» C. Looping | |