What are the causes of photochemical smog?

Q: What is air-to-fuel ratio (AFR) and why is it important in internal combustion engine?

A: The combustion  process has solid liquid and gaseous fuel present in it and the mass ratio of air to…

Q: Why positive corona is used for all indoor air-cleaning applications even though it is less…

A: In an Electrostatic precipitator, an electrical breakdown of electrons happens near the wire when…

Q: Which pollutants does smoke from a cigarette contain?

A: Solution: The chemicals that are present in the smoke which causes air pollution through smoking are…

Q: What is the process of recharging?

A: Process of recharging Ground water table (W.T):

Q: Flue gas conditioning is extremely important for ESPa in some industries. Why?

A: Flue Gas Conditioning: Flue Gas Conditioning is the process of injecting small quantity of sulfur…

Q: What is synthesis gas (syngas)?

A: Synthesis gas:-It is the combination of fuel gases like Hydrogen(H), Carbon Monoxide (CO), and some…

Q: What are the benefits of the use of chilled ammonia systems in capturing CO2?

A: Solution: Chilled ammonia process can be generally used to capture the the carbon-dioxide from…

Q: What are the emission rates of formaldehyde from particleboard?

A: Plywood and 1.8 ug/ml for particleboard. The European standard for lowest emission particleboard is…

Q: Explain the process of capturing CO2 using chilled ammonia systems ?

A: The chilled ammonia method absorbs the carbonic acid gas at coldness (2–10 ∘C). the warmth of…

Q: Net positive carbon buildings are not yet possible due to lacking technologies and building science…

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Q: Draw a graph showing the emulsification breaker effect over time points (W X Y Z) .

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Q: What is the principal health effect of radon as indoor pollutant?

A: There are various factors in the indoor environment that can affect well-being and health. The main…

Q: Talk about the mechanisms that trap particles in the filter and explain how they are backwashed.

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Q: The usual pore size of high-efficiency particulate air filters ( in micrometers)?

A: We have to find the usual pore size of high efficiency particulate air filters in micrometers…

Q: Define fuel equivalence ratio.

A: The actual fuel to the stoichiometric fuel ratio is defined as fuel equivalence ratio.

Q: a) What is light pollution and its effects towards human, social, economy and environment

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Q: What were the rules set for emissions of Beryllium according to the National Emission Standards for…

A: National Emission Standards for Hazardous Air Pollutants (NESMAPs) are based on technology which is…

Q: Using solar energy to air-condition buildings real life problems.

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Q: What are the different sources of Sulfur oxides (S0X) emissions?

A: The average atmospheric residence time for SO2 is 1-5 days. Ambient air concentrations of SO2range…

Q: Write down the functions of the parts of the air extraction and packaging machine for food…

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Q: What are the side effects of Photochemical oxidants?

A: Photochemical smog is a haze in the atmosphere accompanied by high levels of ozone and nitric oxide…

Q: Badly needed asap. Question about Materials Science and Engineering Explain: Reusing and Recycling…

A: Reusing and recycling of engineering materials Building industry is a trade which generates big…

Q: Visit a home improvement center (hardware/lumber store) in your town, and try to gather information…

A: (1) Fiberglass Advantages: (a)Most common (b)non-flammable (c)resistant to moisture damage. (d)…

Q: What materials are used for vapor retarders?

A: A vapor shield, also known as a vapor diffusion retarder, is a substance that slows down the…

Q: Explain the major emissions control method of sulfur oxides.

A: SOx is the chemical formula for the sulfur oxide which is colorless, toxic and bed smelling gas.…

Q: What are the sources of Carbon tetrachloride in indoor pollution?

A: Carbon tetrachloride is a non - flammable, transparent liquid that is near water-insoluble.…

Q: How does air polluted with particulate matter affect human beings ?

A: Answer Introduction Particulate matter is the matter which consists of the microscopic solid. The…

Q: Give five (5) other examples of substances that can be used for alkalimetric process.

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Q: Which among the air pollution control technologies can both remove particulate matter and gaseous…

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Q: How did atmospheric  CO2 concentration increased in ppm from 1958 to till now?

A: The atmospheric  CO2 concentration increased in ppm from 1958 to till now:

Q: What are volatile organic compounds and why are they considered as a major primary pollutant?

A: Solution: Volatile organic compounds are considered as important pollutant because of their…

Q: What is the reason of the production of soot in an engine?

A: The burnt fuel leading to heterocyclic hydrocarbon particle is known as soot.

Q: As an engineer how could you help reduce the atmospheric CO2 emissions?

A: As an engineer we use some advanced technologies and use of some alternatives to reduce the CO2…

Q: a) Draw a neat sketch of a Trickling Filter unit and discuss how it can remove impurity from…

A: It is asked to discuss how Trickling filter removes impurity from wastewater and draw a sketch of…

Q: What do you mean by Desulphurization of fuel oil?

A: Desulphurization of fuel oil:

Q: So, what is the relationship between solar cells and global positioning systems (GPS)?

A: This question has been taken from surveying

Q: What is Vibroprobes?

A: Vibro-probes refer to vibrating probes that are used for compaction of loose soil or fill, up to a…

Q: About the ozone depletion and NOx, discuss: a. NOx pollution sources b. Ozone hole c. NOx alarming

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Q: eflection for Technological Advances and Trends in Modern High-Rise Buildings

A: 1. High-rise buildings are becoming increasingly important in today's architecture. Technology has…

Q: Discuss briefly the effects of air pollution to human health, animals and plants.

A: Air particulate matter toxicants have distinct toxic effects on humans depending on how long they…

Q: What are the examples of biogas system in the field of civil engineering?

A: The only function of biogas system in field of civil engineering is to produce biogas which is used…

Q: Can you remove adsorbed water by oven drying at 105°C, explain.

A: