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Agricultural Engineering MCQs Set-3
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1. Which of the following is most suitable for dry wastes?
Aerobic composting
Anaerobic composting
Closed vessel
Anaerobic digestion
2. Which of the following is an end product of anaerobic composting which is a source of energy?
Biogas
Alcohol
Toxic products
Amino acid
3. The degradation rate of anaerobic digestion is higher than that of aerobic digestion.
True
False
4. Which of the following is a characteristic of anaerobic digestion?
Low degradation rate
Low odor emission
Narrow suitability of wastes
Gas phase
5. Which of the following is not a characteristic of aerobic digestion?
Low degradation rate
High odor emission
Narrow suitability of wastes
Post-treatment
6. Which of the following factor doesn’t affect the growth of the technical expenditure?
Odor
Germs
Methane formation
Noise
7. Which of the following is not an advantage of aerobic composting?
Simple process
Low-cost
Easy method
Very expensive
8. In the arena of waste treatment, no process is the best.
True
False
9. Which of the following process is not used for waste treatment?
Aerobic composting
Anaerobic fermentation
Nuclear imaging
Vermicomposting
10. What is a major advantage of anaerobic fermentation over aerobic composting?
Human control
Production of methane
High water content
Less water contents
11. The process of burning of municipal solid waste at high temperature is called ____________
Incineration
Composting
Land filing
Shredding
12. Which of the following is a biodegradable waste?
Polythene bags
Synthetic fiber
Food waste
Paper
13. In which method of disposal of municipal solid waste, the waste is dumped in the soil?
Incineration
Composting
Land filing
Shredding
14. Which of the following is correct regarding disposal of waste by land filling?
Economical method
Preferred in low lying areas
Foul gases are not produced
Separation of different types of waste not required
15. The process of decomposition of biodegradable solid waste by earthworms is called ___________
Land fills
Shredding
Vermi-composting
Composting
16. The waste produced in cotton mills are ___________
Municipal solid waste
Non biodegradable waste
Hazardous waste
Non hazardous waste
17. Which of the following is not the land filling method?
Bangalore method
Area method
Depression method
Trench method
18. ______ is a liquid that passes through solid waste and extracts suspended impurities from it.
Leachate
Sludge
Distilled water
Municipal waste
19. Which of the following is not the municipal solid waste?
Radioactive substance
Ashes
Food waste
Rubbish
20. Which of the following waste can be decomposed by bacteria?
Radioactive substance
Ashes
Food waste
Rubbish
21. ______ is the cutting and tearing of municipal solid waste.
Land fills
Shredding
Pulverization
Composting
22. _________ is the crushing and grinding of municipal solid waste.
Land fills
Shredding
Pulverization
Composting
23. In which method of composting, decomposition of anaerobic waste takes place?
Indian method
Depression method
Bangalore method
Trench method
24. Which of the following is a biological method of disposal of municipal solid waste?
Land fills
Shredding
Pulverization
Composting
25. Which of the following is not a source of urban waste?
Municipal Services
Residential area of towns and cities
Industrial area
Rural waste
26. Which of the following urban waste is not categorized as toxic waste?
Old medicines
Paints
Fertilizer
Agricultural wastes
27. Disposal is the initial stage during solid waste management.
True
False
28. Why waste has become an issue in urban areas?
Limited space
Less time
Less labor
More labor
29. Which of the following reasons doesn’t worsen the problem of waste disposal in urban cities?
Odor
Population density
Urban area environmental demands
Insufficient water
30. Cloth disposal is one of the biggest helps to landfills in today’s date.
True
False
31. Which of the following methods can be used to generate huge amount of energy?
Dumping
Gasification
Incineration
Urban solid waste
32. Several urban dwellers earn their livelihood from items recovered from urban solid wastes.
True
False
33. Which of the following method cannot be used for disposal and treatment of urban organic waste?
Anaerobic compost
Sanitary landfill
Aerobic compost
Secure landfill
34. Which of the following is a natural way of composting?
Vermicomposting
Landfill
Incineration
Sanitary landfill
35. Why secure landfill is used?
For vermicomposting
To dispose hazardous waste
For Incineration
For recycling
36. Which of the following is a biomedical waste?
Waste from veterinary institutions
Waste from construction areas
Garbage
Ashes
37. Which of the following is used to dispose of the waste generated in urban areas?
Low lying areas
Residential area of towns and cities
Industrial area
Rural waste
38. At the disposal sites, which of the following methods is used to reduce the volume of urban waste?
Bulldozer leveling
Open burning
Fertilizer
Incineration
39. Open burning at the disposal sites causes severe noise pollution.
True
False
40. What is the major environmental concern related to landfill?
Limited space
Limited technology
Less man-power
Discharge of leachates
41. Which of the following treatment shouldn’t be used for pre-treatment of solid waste?
Mechanical treatment
Biological treatment
Thermal treatment
Heavy metal treatment
42. Aerobic degradation of waste in landfills is usually of very less time.
True
False
43. Which of the following mechanism can’t be used to regulate mass from waste to leaching water?
Hydrolysis
Addition of heavy metals
Biological degradation
Solubilisation
44. Which of the following phases is not identified in anaerobic degradation?
Anaerobic phase
Methanogenic fermentation
Aerobic compost
Acid fermentation
45. Which of the following is not an environmental monitoring method?
Ground water monitoring
Landfill sealing
Quality of leachate
Biodegradation
46. What is the method that fills in gas into the landfills?
Vermicomposting
In-situ aeration
Incineration
Recycling
47. Which of the following characteristics is not important to hazardous wastes?
Quantity
Concentration
Color
Physical or chemical properties
48. Which of the following is not an ill-effect of improper handling of hazardous waste?
Increase in mortality rate
Irreversible illness
Threat to the environment
Decrease in mortality rate
49. It is the responsibility of the civilians to take care of the disposed of hazardous wastes.
True
False
50. Which of the following is not a serious hazardous characteristic of the waste?
Toxicity
Ignitability
Corrosiveness
Degradability
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