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. |
Soviet Union started underground nuclear weapon testing in |
| A. | 1992 |
| B. | 1978 |
| C. | 1980 |
| D. | 1963 |
| Answer» E. | |
| 2. |
Sources of metals are forest fires, volcanic activity, dust particles and |
| A. | Anthropogenic Emissions |
| B. | Lands |
| C. | Oceans |
| D. | fossil fuels |
| Answer» B. Lands | |
| 3. |
Asphalt and bitumen are solid at |
| A. | High temperature |
| B. | High Pressure |
| C. | High Humidity |
| D. | All of above |
| Answer» E. | |
| 4. |
Hexachlorobenzene is a fungicide, used as a |
| A. | Facial issues |
| B. | Lice treatment |
| C. | Curing of diseases |
| D. | Seed treatment |
| Answer» E. | |
| 5. |
Uncertainty factor is known as |
| A. | Animals dosage Factors |
| B. | Species Factor |
| C. | Interspecies uncertainty factor |
| D. | TLV factor |
| Answer» D. TLV factor | |
| 6. |
Marine mammals, such as dolphins and whales, producing sound ranges from |
| A. | 10 Hz to over 10,000Hz |
| B. | 100 Hz to over 100,000Hz |
| C. | 900 Hz to over 100,000Hz |
| D. | 10 Hz to over 100,000 |
| Answer» E. | |
| 7. |
PAH are normal constituent of smoke, ashes, bonfires and |
| A. | Sediments |
| B. | Cigarettes |
| C. | Sunlight |
| D. | Heating |
| Answer» C. Sunlight | |
| 8. |
Waste in solid form, included plastics, rubbers and |
| A. | Sludge |
| B. | water |
| C. | chemicals |
| D. | Paints |
| Answer» B. water | |
| 9. |
Some pollutants are biodegradable by mineralization of |
| A. | Insects |
| B. | Viruses |
| C. | Animals |
| D. | Bacterias |
| Answer» E. | |
| 10. |
Primary sources of sediments captivated as erosion from mining, forestry and |
| A. | Acid Rain |
| B. | Farming |
| C. | Deforestation |
| D. | All of above |
| Answer» C. Deforestation | |
| 11. |
Low level oil contamination kill larvae, resulting in causing diseases in |
| A. | Lions |
| B. | Ibex |
| C. | Marine Organisms |
| D. | Wild Animals |
| Answer» D. Wild Animals | |
| 12. |
About, 44% of pollution have as its sources run off and |
| A. | Atmosphere |
| B. | Industries |
| C. | Agriculture |
| D. | Discharges |
| Answer» E. | |
| 13. |
Increased concentration of carbon dioxide in atmosphere contributes to |
| A. | Eutrophication |
| B. | Air pollution |
| C. | Acid rain |
| D. | Ocean Acidification |
| Answer» E. | |
| 14. |
Wind blowing produces sounds in water, ranges between |
| A. | 50 Hz and 100 kHz |
| B. | 1 Hz and 1000 kHz |
| C. | 100Hz and 1000 kHz |
| D. | 1 Hz and 100 kHz |
| Answer» E. | |
| 15. |
PAHs are well known genotoxic and |
| A. | Aliphatic compounds |
| B. | Non toxic compounds |
| C. | Chemical compounds |
| D. | Carcinogenic compounds |
| Answer» E. | |
| 16. |
Sources of sound in Ocean, examplified as |
| A. | natural physical processes |
| B. | marine life |
| C. | man made sources |
| D. | All of above |
| Answer» E. | |
| 17. |
Plastic end product is called |
| A. | Dioxins |
| B. | nurdles |
| C. | Debris |
| D. | Waste |
| Answer» C. Debris | |
| 18. |
Average composition of mineral oils in asphaltic is |
| A. | 0.06 |
| B. | 0.09 |
| C. | 0.9 |
| D. | 1 |
| Answer» B. 0.09 | |
| 19. |
Metallic mercury is being characterized as a |
| A. | Gas |
| B. | Non Metal |
| C. | Silver white metal |
| D. | Liquid |
| Answer» D. Liquid | |
| 20. |
Endrin used as a pesticide in controling insects, rodents, and |
| A. | Forests |
| B. | Plants |
| C. | Wild Animals |
| D. | birds |
| Answer» E. | |
| 21. |
Group 2 oils of non persistent oil, having a specific gravity, approximately |
| A. | 9 |
| B. | 0.9 |
| C. | 0.85 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 22. |
Reactive oxygen species can oxidize bases of the |
| A. | Organs |
| B. | Membranes |
| C. | Chromosomes |
| D. | All of above |
| Answer» E. | |
| 23. |
PAHs bind to cellular proteins and DNA, leading to mutations, tumors and |
| A. | Cancer |
| B. | Asthma |
| C. | TB |
| D. | Digestive issues |
| Answer» B. Asthma | |
| 24. |
Hexachlorobenzene is used on seeds, also known as an industrial |
| A. | by product |
| B. | Pollutants |
| C. | Waste material |
| D. | effluents |
| Answer» B. Pollutants | |
| 25. |
Lighter paraffins are refined into |
| A. | Jet fuel |
| B. | Karosene |
| C. | Diesel |
| D. | All of above |
| Answer» E. | |
| 26. |
Plastic debris are resin pellets that are used for production of plastic |
| A. | end product |
| B. | Materials |
| C. | Chemicals |
| D. | bottles |
| Answer» B. Materials | |
| 27. |
Due to oil pollution, aquatic animals may suffer anemia and |
| A. | Inhalproblemsation |
| B. | immunotoxic effects |
| C. | Asthma |
| D. | allergy |
| Answer» C. Asthma | |
| 28. |
Oil blocks diffusion of atmospheric oxygen into the |
| A. | Air |
| B. | Atmosphere |
| C. | Forests |
| D. | Water |
| Answer» E. | |
| 29. |
Dioxins tend to bioaccumulate, due to their |
| A. | Inorgainc character |
| B. | Lipophilic character |
| C. | Hydrophilic character |
| D. | Hydrophobic character |
| Answer» C. Hydrophilic character | |
| 30. |
Sorbents are regarded as solid product, used to overcome the |
| A. | spread of a spill of pollutant |
| B. | Starting operating |
| C. | Spreading operation |
| D. | Cleaning operation |
| Answer» B. Starting operating | |
| 31. |
Almost, 75% of mercury in marine environment originated from natural sources, such as |
| A. | Eroding ores |
| B. | Fishes |
| C. | Sea Shells |
| D. | Corals |
| Answer» B. Fishes | |
| 32. |
Molecules containing only single bonds, named as |
| A. | Alkyne |
| B. | Alkane |
| C. | Ethylene |
| D. | Ethylene |
| Answer» C. Ethylene | |
| 33. |
Asphalt and bitumin consist of mixtures of large |
| A. | Polyaromatic hydrocarbons |
| B. | Aromatic carbons |
| C. | Parafines |
| D. | Alkane |
| Answer» B. Aromatic carbons | |
| 34. |
Nesting habitat of marine turtles can be destroyed by the |
| A. | Waste |
| B. | Oil Spill |
| C. | Sediments |
| D. | food waste |
| Answer» C. Sediments | |
| 35. |
A very light oil has a high |
| A. | Toxicity |
| B. | Non toxic compounds |
| C. | Inorganic compounds |
| D. | frequency |
| Answer» B. Non toxic compounds | |
| 36. |
TLV-C stands for |
| A. | Thresold Limit Value-Ceiling limit |
| B. | Thresold Level Value-Ceiling limit |
| C. | Temperature Limit Value-Ceiling limit |
| D. | Temperature Limit Value-Controling limit |
| Answer» B. Thresold Level Value-Ceiling limit | |
| 37. |
Cardboard, almost, takes 2 months to |
| A. | grow |
| B. | rotten |
| C. | decompose |
| D. | flourish |
| Answer» D. flourish | |
| 38. |
Dioxins consist of two polychlorinated aromatic hydrocarbons, associated with one or two |
| A. | Halogen group |
| B. | ether group |
| C. | organic compounds |
| D. | inorganic compounds |
| Answer» C. organic compounds | |
| 39. |
Sound travel through a medium, known as |
| A. | Atmosphere |
| B. | Air and water |
| C. | Soils |
| D. | Sediments |
| Answer» C. Soils | |
| 40. |
What causes TCDD exposure? |
| A. | Digestive problem |
| B. | Asthma |
| C. | Arthritis |
| D. | All of above |
| Answer» E. | |
| 41. |
In euphotic zone, sunlight penetrates water, proficiently used by |
| A. | Plants |
| B. | Insects |
| C. | Autotrophic organisms |
| D. | sea creature |
| Answer» D. sea creature | |
| 42. |
10% of pollutants derive from |
| A. | Household waste |
| B. | Sewage pipelines |
| C. | Ocean dumping |
| D. | Commercial waste |
| Answer» D. Commercial waste | |
| 43. |
Ammonium pool is rapidly recycled in |
| A. | Rivers |
| B. | Open oceans |
| C. | Ponds |
| D. | Lakes |
| Answer» C. Ponds | |
| 44. |
Cooling systems of ships are operating on freons and |
| A. | SO₂ |
| B. | CO₂ |
| C. | NO₂ |
| D. | All of above |
| Answer» E. | |
| 45. |
Invasive species contemplated as |
| A. | Animals |
| B. | Plants |
| C. | Parasites |
| D. | All of above |
| Answer» C. Parasites | |
| 46. |
Plastic containers, as per an estimates, would take 80 years to |
| A. | form |
| B. | decompose |
| C. | rotten |
| D. | grow |
| Answer» C. rotten | |
| 47. |
Pollution is a kind of contamination in ecosystem, having a harmful impact on |
| A. | Organisms |
| B. | Soil |
| C. | Atmosphere |
| D. | land |
| Answer» B. Soil | |
| 48. |
Plywood takes 1 to 3 years to |
| A. | grow |
| B. | decompose |
| C. | rotten |
| D. | form |
| Answer» C. rotten | |
| 49. |
Oil changes sensitivity of aquatic animals for |
| A. | Parasites |
| B. | Infections |
| C. | Inhalation problem |
| D. | heat waves |
| Answer» B. Infections | |
| 50. |
GAB stands for |
| A. | Geological aerobic bacteria |
| B. | Gill aerobic bacteria |
| C. | General Absorption Bacteria |
| D. | All of above |
| Answer» E. | |