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 recognized as an initial step in creating a dosage regimen? |
| A. | Low Dose |
| B. | High Dose |
| C. | Mode lethal dose |
| D. | All of above |
| Answer» D. All of above | |
| 2. |
Sources of oil contaminations are |
| A. | Airplane accident |
| B. | Effluents from factory |
| C. | Acid rain |
| D. | tanker accidents |
| Answer» E. | |
| 3. |
Heavy Oils are difficult to |
| A. | Formed |
| B. | Clean up |
| C. | Produced |
| D. | examine |
| Answer» C. Produced | |
| 4. |
Influx of nutrients, causing severe distortion to balance of ecosystem, termed as |
| A. | Desertification |
| B. | Urbanization |
| C. | Deforestation |
| D. | All of above |
| Answer» E. | |
| 5. |
Toxic additives used in plastic manufacturing, can possibly leach into the |
| A. | Air |
| B. | water |
| C. | Atmosphere |
| D. | sand |
| Answer» C. Atmosphere | |
| 6. |
Thresold limit value is maximal permissible |
| A. | Units |
| B. | Dosage |
| C. | Production |
| D. | Exposure |
| Answer» E. | |
| 7. |
Main transport of pollutants between sea and land are |
| A. | Oceans |
| B. | Lakes |
| C. | Ponds |
| D. | Rivers |
| Answer» E. | |
| 8. |
Carbon dioxide in a solution forms |
| A. | Nitrites |
| B. | Carbonic acid |
| C. | Sulfur |
| D. | Ammonia |
| Answer» C. Sulfur | |
| 9. |
Low frequency sonars has a frequency up to |
| A. | 900kHz |
| B. | 100kHz |
| C. | 1kHz |
| D. | 200kHz |
| Answer» D. 200kHz | |
| 10. |
APB stands for |
| A. | Acid producing bacteria |
| B. | Acid adsorption bacteria |
| C. | Acid production bacteria |
| D. | Acid pro bacteria |
| Answer» B. Acid adsorption bacteria | |
| 11. |
Nitrogen fixation takes place in shallow and oligotrophic water, harbouring |
| A. | Coral Reefs |
| B. | Phytoplanktons |
| C. | Zooplanktons |
| D. | organisms |
| Answer» B. Phytoplanktons | |
| 12. |
Pulses consist of a broad range of |
| A. | frequencies |
| B. | pitch |
| C. | amplitude |
| D. | toss |
| Answer» B. pitch | |
| 13. |
Light oils are soluble in |
| A. | Inorganic compounds |
| B. | Organic compounds |
| C. | Chemicals |
| D. | Water |
| Answer» E. | |
| 14. |
Nitrogen and phosphate limits primary production in |
| A. | Land |
| B. | Forests |
| C. | Biomes |
| D. | An aquatic ecosystem |
| Answer» E. | |
| 15. |
An underground nuclear testing, started by united kingdom in |
| A. | 1991 |
| B. | 1998 |
| C. | 1990 |
| D. | 1970 |
| Answer» B. 1998 | |
| 16. |
Nutrient run off promote algal blooms in |
| A. | Coastal Areas |
| B. | Springs |
| C. | Lakes |
| D. | Ponds |
| Answer» B. Springs | |
| 17. |
Orange peels take 6 months to |
| A. | decompose |
| B. | recycle |
| C. | form |
| D. | rotten |
| Answer» B. recycle | |
| 18. |
Impact of a certain type of pollution is known for the |
| A. | scope of growth |
| B. | General adaptation syndrome |
| C. | Biodegradation |
| D. | Bioventing |
| Answer» B. General adaptation syndrome | |
| 19. |
Both, calcareous and non calcareous organism forms |
| A. | Aquatic communities |
| B. | Animal Communities |
| C. | Fouling Communities |
| D. | Animal communities |
| Answer» D. Animal communities | |
| 20. |
Mercury has a high affinity for |
| A. | Proteins |
| B. | Fats |
| C. | Carbohydrates |
| D. | Lipids |
| Answer» E. | |
| 21. |
A high concentration of ammonia can be toxic for the |
| A. | Terrestrial Animals |
| B. | Fish population |
| C. | Wild Animals |
| D. | Insects |
| Answer» C. Wild Animals | |
| 22. |
Biological pump forms bridge between euphotic zone and the |
| A. | Deeper layers of Ocean |
| B. | Surface of ocean |
| C. | Lands |
| D. | Hills |
| Answer» B. Surface of ocean | |
| 23. |
Non indigenous species are also known as |
| A. | Plant Species |
| B. | Animal species |
| C. | Foreign species |
| D. | Exotic Species |
| Answer» E. | |
| 24. |
In humans, an oral dosage ranges between 5 to 50 mg/kg, characterized as |
| A. | Very Toxic |
| B. | Super Toxic |
| C. | Slightly Toxic |
| D. | Extremely Toxic |
| Answer» E. | |
| 25. |
In water, precipitation raises noise about 30 dB, ranges between |
| A. | 800 and 20,000 Hz. |
| B. | 100 and 20,000 Hz. |
| C. | 100 and 900,000 Hz. |
| D. | 900 and 900,000 Hz. |
| Answer» C. 100 and 900,000 Hz. | |
| 26. |
Polyhalogenated biphenyls consist of |
| A. | five aromatic rings |
| B. | four aromatic rings |
| C. | three aromatic rings |
| D. | All of above |
| Answer» E. | |
| 27. |
Lighter molecules are in a gaseous state at |
| A. | Humid climate |
| B. | Ambient Pressure |
| C. | Ambient temperatures |
| D. | high pressure |
| Answer» D. high pressure | |
| 28. |
PCDDs stands for |
| A. | polybromine dibenzo-p-dioxins |
| B. | polychlorinated dibenzo-p-dichloride |
| C. | polychlorinated dibenzo-p-dioxins |
| D. | polychlorinated dibromine-p-dioxins |
| Answer» D. polychlorinated dibromine-p-dioxins | |
| 29. |
China and France, started an underground nuclear testing in |
| A. | 1980 |
| B. | 2001 |
| C. | 1996 |
| D. | 2000 |
| Answer» D. 2000 | |
| 30. |
Toxaphene is formed by chlorination of |
| A. | Non Metals |
| B. | Metals |
| C. | Halogens |
| D. | All of above |
| Answer» E. | |
| 31. |
Aromatic hydrocarbons are |
| A. | Chemical compounds |
| B. | Inorganic compounds |
| C. | Unsaturated hydrocarbons |
| D. | Saturated hydrocarbons |
| Answer» D. Saturated hydrocarbons | |
| 32. |
Oil emulsion is also known as |
| A. | Sandwich |
| B. | chocolate mousse |
| C. | Cake |
| D. | biscuit |
| Answer» C. Cake | |
| 33. |
TLV- STEL stands for |
| A. | Thresold Limit value-Short term exposure Level |
| B. | Thresold Limit value-Sort term exposure Limit |
| C. | Thresold Limit value-Short term exposure Limit |
| D. | Thresold Level value-Short term exposure Limit |
| Answer» D. Thresold Level value-Short term exposure Limit | |
| 34. |
Some bacteria transforms, nitrate ions back into nitrogen gas, resulting process is known as |
| A. | Nitrogen fixation |
| B. | Ammonification |
| C. | Denitrification |
| D. | Nitrification |
| Answer» D. Nitrification | |
| 35. |
Paraffin waxes are incorporated with alkanes, propane and |
| A. | 25 carbon atoms |
| B. | 35 carbon atoms |
| C. | 45 carbon atoms |
| D. | 55 carbon atoms |
| Answer» B. 35 carbon atoms | |
| 36. |
Bacteria is responsible in converting inert nitrogen gas into a |
| A. | Non usable form |
| B. | Usable form |
| C. | Non consumption form |
| D. | chemical form |
| Answer» C. Non consumption form | |
| 37. |
Damage of a poison depends on the |
| A. | Enzymes |
| B. | Antidote |
| C. | Hormones |
| D. | intensity |
| Answer» C. Hormones | |
| 38. |
Sources of dust particles are metal ores and |
| A. | Forests |
| B. | Metal mines |
| C. | Industries |
| D. | Lands |
| Answer» C. Industries | |
| 39. |
Process of burning is captivated in removing oil from the |
| A. | Dept of water |
| B. | Surface of water |
| C. | Rocks |
| D. | oceans |
| Answer» C. Rocks | |
| 40. |
Magnesiums objective involved in working as a Cofactor, in |
| A. | Enzymes |
| B. | Hormones |
| C. | Genes |
| D. | All of above |
| Answer» E. | |
| 41. |
What is considered as most dangerous chemical pollutants? |
| A. | Dioxins |
| B. | Chemical pollutants |
| C. | toxic pollutants |
| D. | Ozone |
| Answer» B. Chemical pollutants | |
| 42. |
High frequency sonar is immersed into mine localisation, seafloor mapping and |
| A. | biomass detection |
| B. | Wind |
| C. | torpedo guidance |
| D. | earthquakes |
| Answer» D. earthquakes | |
| 43. |
TLV- STEL limits duration of more acute exposure, a period of |
| A. | I week |
| B. | 1 hour |
| C. | 20 Minutes |
| D. | 15 minutes |
| Answer» E. | |
| 44. |
PCBs are used as a lubricants, elastomers and |
| A. | pots |
| B. | Building materials |
| C. | plasticizers |
| D. | All of above |
| Answer» D. All of above | |
| 45. |
In 2010, almost, 205 million gallons of oil were lost, during deepwater Horizon accident in |
| A. | UAE |
| B. | Middle East |
| C. | Gulf of Mexico |
| D. | America |
| Answer» D. America | |
| 46. |
Some dioxins are |
| A. | Non Metals |
| B. | Metals |
| C. | Toxic |
| D. | Non toxic |
| Answer» D. Non toxic | |
| 47. |
Pollutants that interfere with structure of DNA is known as |
| A. | Bio markers |
| B. | Bioventing |
| C. | Geno toxic compounds |
| D. | Biomes |
| Answer» D. Biomes | |
| 48. |
PAH stands for |
| A. | Poly aromatic hydrocarbons |
| B. | Polycyclic aromatic hydrogen |
| C. | Polycyclic aliphatic hydrocarbons |
| D. | All of above |
| Answer» E. | |
| 49. |
Sonar is used for scientific research and |
| A. | Commercial purposes |
| B. | safety |
| C. | Housing |
| D. | heat radiation |
| Answer» B. safety | |
| 50. |
OECD stands for |
| A. | Organization for Ecological Cooperation and Development |
| B. | Organization for Environmental Cooperation and Development |
| C. | Organization for Economic Cooperation and Development |
| D. | Organization for Economic Change and Development |
| Answer» D. Organization for Economic Change and Development | |