a) Explain the term “Atmospheric pressure”. b) Explain the basic components of air pollution problem
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Q: Explain the term “Atmospheric pressure”. Explain the basic components of air pollution problem
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- A jet plane taking off creates a noise with a magnitude of approximately 125 dB. What is the magnitude of the pressure disturbance (in Pa)?Q: Explain the term “Atmospheric pressure”. Explain the basic components of air pollution problem subject: Environmental Engineering-ll program: BE-Civil EngineeringQ= 1.Explain the term “Atmospheric pressure”. 2.Explain the basic components of air pollution problem Civil Engineering Subject= Enviromental Engineering 2
- Q#5. a) Explain the term “Atmospheric pressure”. b) Explain the basic components of air pollution problem Subject: environmental engineering iiQ#5. Explain the term “Atmospheric pressure”. Explain the basic components of air pollution problemPlease choose the correct answer: 1. In water cycle, ______ brings H2O from water in a lake to vapor at atmosphere. A. evaporation; B. evapotranspiration; C. precipitation; D. infiltration 2. A drinking water well in NJ is seriously polluted due to saltwater intrusion. The major pollutant is _____. A. Oxygen demanding materials; B.salts; C. nutrients; D. toxic heavy metals 3. The real reason to cause saltwater intrusion is the different of _____ between freshwater and seawater. A. density; B. temperature; C. velocity; D. all of the above 4. Which of the following represents a non-point pollution source? A. Leaking underground gas tanks; B. CSO; C. urban runoff; D. an outlet of untreated industrial wastewater into a river
- How many lb/sec of carbon dioxide are flowing through a 6” pipe when the pressure is 25.0 psi gage, the temperature 80°F, and the average velocity 8.00 ft/sec?The urban heat islands occur when cities replace natural land cover with pavement, buildings and other substances that retain heat. There is currently a movement promoting “cool roofs” to help reduce this effect. Use the information below to determine what material would create. One of your classmates makes a claim that clay tiles would not work well to reduce the urban heat island effect because they emit a lot of energy. How would you respond to this student? (a) That is partially right, they don’t emit a lot of energy, so the energy is absorbed into the material and that causes the temperature of the building to increase (b) That is wrong, they absorb and emit the same amount of energy so the transfer won’t have any significant effect on the temperature (c) That is right, they emit energy so the energy builds up in the building and causes the temperature of the roof and air around it to rise (d) That is wrong, they emit energy quickly so the energy is transferred away from the…The air temperature in a 26 in^3 container with a free sliding piston is initially measured at 45 degrees Fahrenheit. The temperature is raised to 180 degrees Fahrenheit. What is the new volume of the container? What are the absolute temperature readings initially and after the temperature has been raised? What is the volume in the cylinder after the temperature has been raised?
- QUESTION 4 There is a wide range of biological treatment systems for the purification of wastewater based on simple processes by which mixed populations of micro-organisms degrade organic material using it as a source of nutrients. As a Civil Engineer Examine various types of aerobic micro-organisms involved in the biological treatment process of wastewater Examine various types of anaerobic micro-organisms involved in biological treatment process of wastewater A filter has a head loss of 0.30 m when clean and 1.30 m after 24 hours of filtration at a rate of 1.5l/s. . Estimate the following if the filtration rate is changed to 2 l/s head loss immediately after backwash verify head loss 10 hours later30. The amount of pollution, P, varies directly with the population, N, of people. Kansan City has a population of 442,000 and produces 260,000 tons of pollutants. Find the population in St. Louise, if we expect that there are 348000 tons of pollution produced. A. 204,706 B. 591,600 C. 207,406 D. 596,100Imagine a parcel of air that has a temperature of 40°C at the surface and a dew-point temperature of 20°C at the lifting condensation level. Assume that the environmental lapse rate is 8°C per 1000 meters, the dry adiabatic lapse rate is 10°C per 1000 meters, and the wet adiabatic lapse rate is 6°C/1000 meters. In Table C , record the environmental temperature, the parcel temperature, and the temperature difference (parcel temperature minus the environmental temperature), and then determine whether the atmosphere is stable or unstable at each height. a. What is the height of the lifting condensation level? b. Does this example describe absolute stability, absolute instability, or conditional instability? c. Would you forecast thunderstorms under these conditions?
