Description : Because less coal is consumed in this system, emissions of ______ and particulate and solid waste by products are reduced. a. Sulphur dioxide (SO2) b. Nitrogen oxide (NOx) c. Carbon dioxide (CO2) d. All of the above.
Last Answer : d. All of the above.
Description : The maximum emission of pollutants from fuel sources in India is caused by : (A) Coal (B) Firewood (C) Refuse burning (D) Vegetable waste product
Last Answer : Answer: B As many as 115,000 people die in India each year from coal-fired power plant po llution, costing the country about $4.6 billion, according to a groundbreaking new study released ... generation in India and its usage is continuously increasing to meet the energy demands of the country.
Description : Coal burning power plants and factories are responsible for about 86% of - (a) carbon monoxide in the atmosphere (b) sulphur dioxide in the atmosphere (c) chlorine in the atmosphere (d) nitrogen dioxide in the atmosphere
Last Answer : Ans:(b)
Description : The _________ gas produced during burning of coal is responsible for causing acid rain . a) oxygen b)sulphur dioxide c)nitrogen d)water vapour
Last Answer : b)sulphur dioxide
Description : Name the methods for disposal of solid, liquid and gaseous waste. -SST 10th
Last Answer : Solid waste disposal methods: dumping, incineration, composting. Liquid waste disposal methods: grit chamber, sedimentation, digestion and drying. Gaseous waste disposal methods: air scrubbers and electrostatic precipitators.
Description : The main source of carbon monoxide is (1) Industrial process (2) Fuel combustion (3) Transportation (4) Solid waste disposal
Last Answer : (3) Transportation Explanation: The main source of carbon monoxide is burning of fossil fuel
Description : The least preferred technique in the disposal of Municipal Solid Waste is - (1) Incineration (2) Composting (3) Land filling (4) Bricketting
Last Answer : (4) Bricketting Explanation: Some of the methods of solid waste disposal and management are : Open burning Dumping into the sea Sanitary Landfills Incineration Composting Ploughing in fields Hog feeding ... waste into fuel pellets or briquettes is the least preferred method of solid waste disposal.
Description : The least preferred technique in the disposal of Municipal Solid Waste is (1) Incineration (2) Composting (3) Land filling (4) Bricketting
Last Answer : Bricketting
Last Answer : Transportation
Description : On a cold winter night , the process sleeping in a room with closed door and windows with coal fire burning inside may die due to the excessive accumulation of a) nitrogen monoxide b) nitrogen dioxide c) carbon dioxide d) carbon monoxide
Last Answer : d) carbon monoxide
Description : In hydel power station, the motion produced in turbines is due to – (1) flow of water (2) burning of coal (3) burning of diesel (4) production of steam
Last Answer : (1) flow of water Explanation: A water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work. Hydroelectric power comes from water at work, water in motion. To generate electricity, water must be in motion. This is kinetic (moving) energy.
Description : Minimum air pollution is caused by burning of a) coal b)kerosene c)LPG d)Diesel
Last Answer : c)LPG
Description : In hydel power station, the motion produced in turbines is due to (1) flow of water (2) burning of coal (3) burning of diesel (4) production of steam
Last Answer : flow of water
Description : Burning pyrites ore gives out – (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas
Last Answer : (2) Sulphur dioxide gas Explanation: The mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS9. Pyrite remains in commercial use for the production of sulfur dioxide, for use in such applications as the paper industry, and in the manufacture of sulfuric acid.
Description : Burning pyrites ore gives out (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas
Last Answer : Sulphur dioxide gas
Description : Which of the following accentuates clinkering troubles on furnace grate burning coal? (A) Low reactivity of carbonised residue containing high proportion of iron & sulphur (B) Low forced draft & fuel bed temperature (C) Thick firebed and preheated primary air (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following accentuates clinkering trouble on furnace grate burning coal? (A) Low reactivity of carbonised residue containing high proportions of iron & sulphur (B) Low forced draught and fuel bed temperature (C) Thick fire bed and preheated primary air (D) All (A), (B) and (C)
Description : Is a physical change A.Forming a mixture B.Burning wood C.Food turning into waste in the intestines D.Turning solid sodium and chlorine gas into salt?
Last Answer : What is the answer ?
Description : The radioactive pollution may result from: 1. medical waste 2. coal ash 3. production of nuclear arsenal 4. mining of uranium 5. decommissioning of nuclear weapons The correct causes are: (a) 1, 3 and 4 only (b) 1, 3, 4 and 5 only (c) 2, 3, 4 and 5 only (d) 1, 2, 3, 4 and 5
Description : The open "Sigrees or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : (1) tendency of carbon dioxide to form a layer along with dust smoke Explanation: Burning coal requires oxygen to chemically react. The availability of oxygen is limited in the furnace by several factors ... dioxide from forming layer along with dust smoke so as to keep the supply of oxygen intact.
Description : The open "Sigrees" or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : tendency of carbon dioxide to form a layer along with dust smoke
Description : _____ energy sources does not produce carbon dioxide. a) Oil b) Uranium c) Coal d) Natural gas
Last Answer : Uranium
Description : Chemically, dry ice is (a) ice formed from pure distilled water (b) solid carbon dioxide (c) solid sulphur dioxide (d) ice kept at sub-zero temperatures
Description : What is dry ice? (1) Solid Carbon dioxide (2) Solid Nitrogen dioxide (3) Solid Sulphur dioxide (4) Solid Water
Last Answer : (1) Solid Carbon dioxide Explanation: Dry ice, sometimes referred to as "cardice," is the solid form of carbon dioxide. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere).
Description : Dry ice is – (1) solid ammonia (2) solid sulphur dioxide (3) dry carbon dioxide gas (4) solid carbon dioxide
Last Answer : (4) solid carbon dioxide Explanation: Dry ice is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and ... . It is useful for preserving frozen foods, ice cream, etc., where mechanical cooling is unavailable.
Description : Dry ice is (1) solid ammonia (2) solid sulphur dioxide (3) dry carbon dioxide gas (4) solid carbon dioxide
Last Answer : solid carbon dioxide
Description : Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal (A) By chemical coagulation (B) In sedimentation tanks equipped with mechanical scrapper (C) In vacuum filter (D) In clarifiers
Last Answer : (B) In sedimentation tanks equipped with mechanical scrapper
Description : Pick out the correct statement. (A) Deforestation helps in controlling the green house effect (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone ( ... natural source of production of SO2 & H2S pollutant (D) Sulphur dioxide causes death by asphyxiation
Last Answer : (B) Global warming is detrimental for increase in food productivity and may cause flood and cyclone
Description : The best method of disposal of garbage is - (1) Vermiculture (2) Incineration (3) Land filling (4) Burning
Last Answer : (3) Land filling Explanation: Landfill is the most common and the oldest method for waste disposal management, incineration is the second largest method for waste disposal management in most of the countries around the world.
Description : The best method of disposal of garbage is (1) Vermiculture (2) Incineration (3) Land filling (4) Burning
Last Answer : Land filling
Description : Give two reasons as to why there is a need for safe waste disposal. -Geography
Last Answer : 1. All type of waste pose a challenge to the environment. 2. Untreated waste materials discharged into stream cause depletion of aquatic life.
Description : What is waste disposal? -SST 10th
Last Answer : Waste disposal is the management of waste to prevent harm to the environment, injury or long term progressive damage to health. Disposal of waste is where the intention is to permanently store, the waste for the duration of its biological and chemical activity, such that it is rendered harmless.
Description : How can you help in reducing the problem of waste disposal? Give any two methods? -Biology
Last Answer : By changing our lifestyle and change in attitude will reduce disposable waste. Reducing packaging. Recycling of waste. Preparing compost of biodegradable waste.
Description : How can you help in reducing the problem of waste disposal ? Give any two methods. -Biology
Last Answer : (i) Recycling : The solid wastes like paper, plastics and metals, etc. are recycled. (ii) Preparation of Compost: Biodegradable domestic wastes such as left over food, fruit and vegetable peels and leaves of potted plants, etc. can be converted into compost by burying in a pit dug into ground.
Description : What is the difference between waste disposal and waste management?
Last Answer : Waste management is collection, transportaion and reuse or recyle the waste whereas Waste disposal is simply to dispose off the waste somewhere.
Description : What is the difference between waste disposal and junk disposal?
Last Answer : the main difference between waste disposal and junk disposal is waste disposal is related to food waste or papers or plastic cans or home-based foods waste whereas junk disposal is related to the waste that may be of e-waste or electronic waste or any other mechanical wastes.
Description : What is the effects of improper waste disposal in students?
Last Answer : Need answer
Description : Proper Computer Waste Disposal?
Last Answer : Recycling of computers is tricky, because some state laws prohibit waste from electronics in landfills and some do not. Computer Monitors have a high concentration of lead of about 27%, and is considered ... reformat your hard drive to completely wipe it clean. Just deleting it to the recycle bin
Description : Where could I buy plastic bins for medical waste disposal?
Last Answer : Actually Amazon offers a complete line of containers for the medical industry. They also sell all types of accessories necessary as well. Plastic bins for medical waste disposal can be purchased online at Medicalartspress.com This company offeres many different sizes and types to choose from.
Description : What do they do at a Medical Waste Disposal plant?
Last Answer : Medical waste contains some infected material. A Medical Waste Disposal plant sterilizes medical waste before disposal to the normal city dump.
Description : Disposal of radioactive waste materials and spent fuel is a major and important technology. How the waste radioactive material is disposed off ?
Last Answer : Nonusable fission products are radioactive and take short/medium/long time for radioactive decay to reach safe level of radioactivity. Accordingly three methods of disposal are : (a) Zero or low ... are stored in water for several months to permit radioactive decay to an accepetable low level.
Description : Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is (A) H2 (B) CH4 (C) CO2 (D) N2
Last Answer : (B) CH4
Description : Which of the following is not a practical method of low level radioactive waste disposal? (A) Dilution with inert material (B) Discharging to atmosphere through tall stacks after dilution (C) Disposing off in rivers & oceans (D) Filling in steel crates and shooting it off out of earth's gravity
Last Answer : (D) Filling in steel crates and shooting it off out of earth's gravity
Description : Pick up the incorrect statement from the following. Intake of water supply should (A) Be nearer to the treatment plant (B) Receive water from purer zone of the source (C) Be located downstream of waste water disposal point (D) Remain easily accessible during floods
Last Answer : (C) Be located downstream of waste water disposal point
Description : The Nuclear Waste Policy Act of 1982 and amendments require what Federal agency to site, construct and operate a geologic repository for disposal of high-level nuclear waste?
Last Answer : ANSWER: U.S. DEPARTMENT OF ENERGY
Description : State the health hazards caused by improper disposal of e-waste.
Last Answer : Ans: When we dispose off e-waste improperly, hazardous chemicals like lead, cadmium, beryllium, mercury and brominated flame retardants pollute the air at a high risk. It also contaminates soil and ... and also genetic mutations. E-waste contains dangerous chemicals that may cause cancer as well.
Description : Explain the procedure adopted for the disposal of Nuclear Waste.
Last Answer : Following the procedure adopted for the disposal of Nuclear Waste: Nuclear waste disposal in nuclear power station: The waste produced in nuclear power plant is in the form of solid, liquid & ... . If it is safe then released to atmosphere at high level through large height chimney.
Description : State the types of radioactive waste generated in a nuclear power station. Explain the methods employed for their disposal.
Last Answer : Types of radioactive waste: The waste produced in nuclear power plant is in the form of solid, liquid & gases, 1. Solid Waste Disposal:- Solid wastes removed from the reactor are very ... are measured. If it is safe then released to atmosphere at high level through large height chimney.
Description : In which of the following cases, the principle of natural justice (Hear the other party) must be followed ? (a) Dismissal of an employee (b) Supersession of a municipality (c) Threat to national security (d) Disciplinary action against a ... (d) (C) (a), (b) and (d) (D) (a), (b), (c) and (d)
Last Answer : Answer: C
Description : Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? (A) Ash disposal problem (B) Excessive fly ash discharge from the stack (C) Higher power consumption in its transportation (D) Erosion of induced draft fan blades
Last Answer : (A) Ash disposal problem